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Page 1: Galperti Clamp Connector

and Flow Control

CLAMP CONNECTORS

®

Page 2: Galperti Clamp Connector

Engineering Solutions...®

GALPERTI ENGINEERING is an International Company whose business is the design, manufacture and supplyof high integrity connectors, forged fittings and flow control products.

Oil, Gas, Power and Petrochemical Companies utilize our products in a variety of applications, where oftencomplex technical problems can now be solved cost effectively.

In order to focus our effort upon our Customer requirements, GALPERTI ENGINEERING offer a total designand manufacturing capability, from our dedicated in-house forge through to finished product, a unique featurein today’s ever demanding global marketplace.

The G-LOK® Connector has an estabilished record throughout the world, meeting or exceeding all current in-dustry codes and standards.

Our facility is accredited with ISO 9001 and our products meet all current industry standards.

The G-LOK® Clamp Connector is a fully proven alternative to the conventional flanged connection used throu-ghout the oil, gas, petrochemical and power generation industries. Produced in a comprehensive range of si-zes and materials they offer versatility, compactness, weight and cost effectiveness in connecting piping sy-stem.

The Connector is designed to meet ANSI B 16.5, ASME VIII, API 6A/Q1 and other design codes. The designhas the approval of Lloyds, DNV and Stoomwezen.

Clamp Connectors offer:

• Easy Assembly

• Compact Construction

• Reduced Weight

• Metal to metal sealing technology – re-usable

• Flexibility

• Full Design approval

Page 3: Galperti Clamp Connector

C M G N

Quality Type Approval & Testing

20 1

¨

Contents¨

QUALITY ASSURANCE

GALPERTI ENGINEERING hasbeen successfully audited andawarded the prestigious BS ENISO 9001 accreditation for itsthorough Quality AssuranceProgramme.This ensures strict compliancewith all relevant RegulatorySpecifications and codesincluding ANSI, API, ASME, BS,NACE. Material specifications toASTM and BS are adhered to,and full traceability of allcomponents is assured.Using the latest CNC machinetools in a modern factoryenvironment, manufacture iscarried out inaccordance with all currentspecification.G-LOK® connectors, in additionto meeting the current IndustryStandards for Interchangeability,can be supplied in accordancewith various designcodes/regulations including:

◆ ANSI/ASME

◆ API

◆ BS 5500

◆ UK Offshore Regulations

◆ Customers’ special requirements

◆ Country Codes

TYPE APPROVAL TESTING

The G-LOK® range of connectorshas been subjected to extensivestrain gauge and destructivetesting and has been awardedfull design approval by Lloyd’sRegister.

EXTERNAL LOADING

TensionThe G-LOK® connector is capableof withstanding higher tensileloads than a conventional ANSIflange. Tensile loads can causeconventional flange faces toseparate, providing a leak pathacross the flange face. With thepressure energised bore seal, thisdoes not occur and the G-LOK®

connector will remain leak tight.

BendingG-LOK® connectors are designedto withstand severe bendingloads without leaking orloosening.Independent tests evaluatingG-LOK® clamp connectors haveshown that even under severepressure and bending conditions,the connector does not leak andthe bolting remains tight.Increasing the bendingmovement to ultimate failure ofthe pipe has not resulted inconnector leakage.

CompressionAs in most cases thebearing area of the sealring ribis larger than the cross section ofthe adjoining pipe it becomesimpossible to over compress thesealring within the G-LOK®

connector. For normal pipingapplications, the compressivelimits are governed by otherfactors such as piping flexibilityanalysis or anchor loads and inpractice the G-LOK® connectorwill always perform under theapplied compressive loading.

Thermal ShockG-LOK® connectors have beenapplied to both Cryogenic andhigh temperature service whichare subject to thermal transientconditions.For very severe thermal shock(i.e. quenching), the connectorscan be provided with thermalshrouds to protect the sealringlips from the full effects of thethermal shock.

G-LOK® ADVANTAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

G-LOK® SEVERE CONDITIONS APPLICATION . . . . . . . . . . . . . . . . . . . . . . 3

G-LOK® SIZING SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

G-LOK® ASSEMBLY AND DIS-ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . 5

G-LOK® BUTTWELD HUBS / BLIND HUBS . . . . . . . . . . . . . . . . . . . . . . . . 6-7

G-LOK® HEAVY DUTY BUTTWELD HUBS / BLIND HUBS . . . . . . . . . . . . . . 8-9

G-LOK® SEAL RINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

G-LOK® CLAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

G-LOK® OTHER CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13

G-LOK® CARBON STEEL PRESSURE TEMPERATURE RATING . . . . . . . . . 14-15

G-LOK® STAINLESS STEEL PRESSURE TEMPERATURE RATING . . . . . . . . 16-17

G-LOK® SUPERDUPLEX PRESSURE TEMPERATURE RATING . . . . . . . . . . 18-19

G-LOK® QUALITY TYPE APPROVAL AND TESTING . . . . . . . . . . . . . . . 20-21

Page 4: Galperti Clamp Connector

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2 19

G-LOK® – The Advantages¨

Pressure Temperature Rating – Superduplex¨

The G-LOK® Connector is designed to offer thestrength and sealing integrity of a welded joint andthe versatility of a mechanical joint. It serves the sa-me purpose as a bolted flange assembly, with theadvantages of being more easily installed, lighterand smaller.A self-energized, pressure activated connection, theG-LOK®, clamp-type connector consists of four basicelements:

• (1) Hub

• (2) Clamps

• (3) Seal

• (4) Bolting

The hubs are usually welded to pipe; the seal is in-stalled and the bolting is tightened on the clamps toform a pipe connector that provides superiorstrength and leak integrity. The G-LOK® is commonlyused in service with temperatures of up to 650°C.The G-LOK® also excels in high pressure applica-tions, with working pressure of 30,000 psi not un-common.The G-LOK® clamp has been designed for the opti-mum strenght of a bolted connection. Since the boltsare at right angles to the axis of the pipe, they donot receive direct bending and pressure loads. Thissystem of clamping provides greater strength thanANSI or API flanges at a fraction of the seal sizeand weight as a result of this design. Less boltingtorque is required for proper seating of the seal.The design of the connector provides considerablestored energy in the system when compared withANSI or API flanges. This stored energy works toprovide leak resistance during thermal cycling andmaintains proper bolt loading.When properly installed, the G-LOK® will usuallyprovide greater bending and torsional strength thanthe connecting pipe. The full face contact of the con-nector resists bending and ensures rigidity not provi-ded by other clamp-type connectors. The pressureand temperature limitations are determined only bythe materials of construction.

HOW THE G-LOK® CONNECTORS SEALS

The seal ring in the G-LOK® resembles a “T” in crosssection. The base of the “T” is the rib that is held byabutting hub faces as the connection is made up.The top of the “T” forms the lips that seal against theinner surfaces of the hubs.In the assembly of the connection, the clamps fit over

the two hubs, and as they draw the hubs togetherthe seal ring rib ensures proper seal alignment.As the hubs are drawn together by the clamp as-sembly, the seal ring lips deflect against the innersealing surfaces of the hubs. This deflection elastical-ly loads the lips of the seal ring against the innersealing surface of the hub, forming the self-energi-zed seal. Internal pressure reinforces this seal, so thesealing action of the G-LOK® is both self-energizedand pressure energized.

G-LOK® clamp connectors are interchangeable withother connectors designed and manufactured accor-ding to the same standard.

G-LOK® in FREE position

G-LOK® in MADE-UP position

HEAVY DUTY SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 20°C 50°C 100°C 150°C 150°C

PRESSURE RATING (BAR)

2”

3”

4”

6”

8”

10”

12”

14”

16”

18”

20”

24”

B14B16B20

C20C23C25C27

D27D31D34D40

XF40XF46XF56

X862X864X867X872

X10H82X10H84X10H87X10H94X10H97

X12M102X12M106X12M112X12M120

A-P106A-P112A-P120A-P130

S112S120S130S134S137S140S152

U152U160U170

3V1603V1703V1803V192

3Y1923Y2003Y2103Y220

153214111309

148313541216903

13451210950765

15501150800

703616554501

666629569388298

549501434279

624548484414

889785672625592582453

462422374

476401362284

623607525429

148013631265

143313081175872

12991210950739

15001101755

703616554501

666629550375288

549501420270

624548484414

889785672625592582438

462422374

476401362284

623607525429

142813151220

138212621133842

12541191950713

14331033708

70361655

498

666629531362278

549501405260

624548484414

889785672625592582422

462422374

476401362284

623607525493

138712781185

134312261101818

12181157934693

1393995651

703616554484

666624515352270

549501393253

624548484414

889785672525592582410

462422374

476401362284

623607525429

136712591168

132312081084806

12001140920683

1294903620

703616554477

666615508346266

549498387249

624548484407

889785672625592582404

462422374

476401362284

623607525429

Page 5: Galperti Clamp Connector

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18 3

Pressure Temperature Rating – Superduplex¨

Designed To Withstands Severe Conditions¨

STANDARD SERIESClamp material-Low Alloy Steel

The G-LOK® connector has been designed formany different critical service applications. Manyof these involve rapid cyclic operating conditionsover extended periods of time, with various com-binations of both pressure and temperature. Toensure compliance with the applicable design co-des with regard to these severe thermal and pres-sure excursions, G-LOK® utilizes state of the artengineering technology.Finite Element Analysis (FEA) allows the detailedexamination of all connector elements under the-se varying conditions.

G-LOK® CONNECTORS VS ANSI FLANGE

G-LOK® Finite Element Model

The G-LOK® clamp connection has a significantlysmaller diameter and a shorter lenght than that of acomparably rated ANSI or API ring joint flange con-nection, reducing weight and space required formake-up.The G-LOK® is especially well suited to systems thatrequire close piping and hookup arrangements. Asthere are no bolt holes to align, the G-LOK® clampmay be rotated to conveniently locate the bolts foreasy make-up and break-down of the connections.

SIZE

WEIGHTS GIVEN ARE APPROXIMATE

G-LOK® CONNECTORS VS FLANGES

2”3”4”6”8”

10”12”16”

9182462100190280560

275074

175300485730

1.370

G-LOK®

ASSEMBLY

WEIGHT KG.

ANSI FLANGES1500#

ASSEMBLY

WEIGHT KG.

NOM.SIZE

G-LOK®

SIZE 20°C 50°C 100°C 150°C 200°C

PRESSURE RATING (BAR)

1”

1,5”

2”

3”

4”

5”

6”

8”

10”

12”

1GR41GR51GR7

1GR11

1,5GR111,5GR14

2GR142GR162GR20

3GR203GR233GR253GR273GR31

4GR254GR274GR314GR344GR40

5GR315GR345GR405GR465GR52

6GR406GR466GR526GR62

8GR628GR728GR768GR82

10H8410H8710H94

12M10212M11212M120

166915511172685

1456934

12891025747

13781214901548275

13411114959630361

13191037840623360

1108822663421

661472415299

534515433

573344251

161214991132662

1407903

1245991722

13321173871529266

12961077927609349

13191037840623356

1108822663407

661472415288

508493398

551335245

155614461092639

1357871

1202956696

12851131840511257

12501039894587336

13121037840622244

1108822663392

661472414278

494460355

516315213

151114041061621

1318846

1167928676

12481099816496249

12141009868570327

12751037840610334

1108822663381

661472403270

485428331

498299208

148913841045611

1299834

1150915666

12291083804489245

1197994856562322

12561037840601329

1108822663375

661472397266

459405306

476283189

(C) G-LOK® HUBTYPE 12M102

(12" SCH. 160)G-LOK® CLAMP

TYPE X12MG-LOK® SEAL RING

TYPE 102ASSEMBLY WEIGHT

KG 345

(A) “GC” COMPACTFLANGE 12"2500 SCH. 160ASSEMBLY WEIGHTKG. 469

(B) WELDING NECKFLANGE 12" 2500 RTJSCH. 160ANSI B 16.5ASSEMBLY WEIGHT1710 KG

Page 6: Galperti Clamp Connector

C M G N

4 17

Sizing Selections¨

Pressure Temperature Rating – Stainless Steel¨

HOW TO SELECTTHE G-LOK® CONNECTOR

1) Determine the following information needed tocorrectly size the G-LOK® connector:

• Maximum Service Pressure and Temperature (YourDesign Conditions)

• The engineering or industry code your project hasspecified. (ASME VIII, B31.3, etc.)

• Pipe size and schedule or the I.D. and O.D. of theweld end.

• Your piping material.

2) Refer to the tables in this catalogue:

• Locate your pipe size and schedule in the Buttweld hub table on pages 6 to 7, then read acrossto the corresponding hub size (third column). Asan example, the 4” schedule 40 Pipe requires aG-LOK® Hub size of 4GR40. Also note that thischart has weights and dimensions for this hub andfor most popular hub sizes.

• The G-LOK® number for the 4GR40 designates thecorrect clamp, bolting and seal ring sizes for thisconnection. The first number refers to the pipe andclamp size, in our example the pipe size is 4” andthe clamp would be the 4. More information onthe clamp can be located in the Clamp table onpage 11.

• The final set of numbers is the G-LOK® seal for thisconnection (in our example this would be a 40).The G-LOK® seal chart is located on page 10.

3) Finally, refer to the pressure-temperature ratingcharts, on pages 14 to 19, to ensure that theG-LOK® connector selected meets the design pressu-re and temperature requirements for the code towhich it is being specified.

The standard line of G-LOK® connectors andproducts are available in materials and sizesto fit nearly any requirement. But if your requi-rements, pipe size, material or design condi-tions, are not covered by one of our charts,please contact Galperti Engineering. We havean engineering and design staff ready to helpyou solve your most demanding needs.

HOW TO ORDERTHE G-LOK® CONNECTOR

After following the selection procedures the informa-tion necessary for ordering G-LOK® connectors isthe quantity, the hub number and material, the sealnumber and seal material, and the clamp numberand clamp material.

A G-LOK® assembly consists of the following:

• Two G-LOK® Hubs

• One G-LOK® Clamp Set, with four studs and eightnuts (Spherical washer available on request)

• One G-LOK® Seal Ring

HEAVY DUTY SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

2”

3”

4”

6”

8”

10”

12”

14”

16”

18”

20”

24”

B14B16B20

C20C23C25C27

D27D31D34D40

XF40XF46XF56

X862X864X867X872

X10H82X10H84X10H87X10H94X10H97

X12M102X12M106X12M112X12M120

A-P106A-P112A-P120A-P130

S112S120S130S134S137S140S152

U152U160U170

3V1603V1703V1803V192

3Y1923Y2003Y2103Y220

737679630

713651585434

647614496368

992736512

483397330257

368331274187143

332269209134

468411332220

586529424377343332218

262237211

254225204177

464459394316

648597554

628573514382

569541437324

960705483

425349290226

324292241164126

293237184118

412362292193

516465373332302292192

260237211

254225204177

453448394316

593546506

574524470349

520494399296

917661453

388319265207

296267220150115

267216168108

376331267177

472425341303276267175

260237211

254225204177

409402367316

546503467

528483433322

479455368273

891637417

358294244191

273246203138106

24619915599

347305246163

434392315279254246161

251228205

246218196171

374367336306

513472438

496453407302

450428345256

828578397

336276229179

256231191130100

23118714593

326286231153

408368295263239231152

237215193

231204183161

354347312284

487448416

471430386287

427406328243

796554372

319262218170

24321918112395

21917713889

309271219145

387349280249227219144

223204181

218193180151

338329296270

481443411

466425382284

422401324240

768511335

315259215168

24021617912294

21717613688

305268217143

383345277246224217142

218200178

214189169148

331324291265

4” G-LOK®

CLAMP SET

SEALRINGSIZE 40

4”G-LOK®

HUB

Page 7: Galperti Clamp Connector

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16 5

Pressure Temperature Rating – Stainless Steel¨

Assembly and Dis-Assembly Procedure¨

INSPECT COMPONENTS PRIORTO ASSEMBLYHub and sealring seating surfaces must beclean and free from foreign matter. Damage tohub seats is not acceptable, and should be rec-tified before assembly.

LUBRICATEUsually sealrings are coated which acts as lu-brificant during make-upe. If required light oilor MoS2 spray can be used. Take care that nosolid particles are present in the lubricant.

CHECK SEALRING STANDOFFThe sealring should rock slightly against hubface.Stand-off dimensions given below in mm.

ASSEMBLE COMPONENTSInstall sealring into the hubs, and assembleclamps around the hubs. Lubricant applied tothe hub/clamp contact area will aid assembly.The studbolts should be fitted ensuring thatspherically faced nuts locate into sphericalseats of the clamps. Lubrication of nut facesand bolt threads is recommended.

TIGHTEN BOLTS IN UNIFORM MANNERBolting should be tightened to keep spacingbetween clamp halves approximately equal.Clamp segments should be shocked with suita-ble soft faced hammer to aid assembly. Alwaysre-t ighten bolts after shocking to thetorque/preload values given below.

ALIGN HUBSHubs should be aligned so that sealring can beinstalled between hubs. DO NOT attempt tocorrect badly mis-aligned piping by clampingforce alone; piping pulling forces should onlybe released when clamps is fully assembled.

ASSEMBLY

DE-PRESSURISE THE LINEAlways check, never take for granted that theline has been de-pressurised. Proceed withcaution in case seepage has caused pressureto build up again.

SLACKEN NUTS BUT DO NOT REMOVE THENUTS FROM THE BOLTS - THEN SLACKENCLAMP SEGMENTSGradually run the nuts back along the bolts un-til just loose. If clamp segments remain boundonto hubs, then BOTH segments must beslackened by hitting the inner face of the clamplugs with a suitable hammer.

REPEAT SLACKENING PROCEDURERe-loosen nuts and re-slacken BOTH clampsegments until the maximum nut travel shownbelow is reached. This should release seal ringcontact and any residual pressure will then bereleased through, with the joint.

CHECK CLAMPS ARE SLACK AND FREE TOROTATE AND/OR ROCK ABOUT HUBSDo not proceed until discharge ceases andclamps are slack, free to rotate or rock. NOTE- If pressure is still in the line, the sealring mi-ght remain seated, making the joint tight eventhough it is part dis-assembled. Dis-assemblycan be completed when clamps are free to mo-ve.

X = Nut travel at each end of bolt

2X = Total nut travel from assembled position

DIS-ASSEMBLY

SEAL RINGSIZE

CLAMPSIZE

BOLTSIZE

RECOMANDEDBOLT TENSIONRESIDUAL (KN)

MAXIMUMBOLT TENSIONRESIDUAL (KN)

RECOMANDEDBOLT TORQUEnu=0,10 (Nm)

MAXIMUMBOLT TORQUEnu=0,10 (Nm)

A4A5A7

A1114

A16A2023

A2527313440465256626772

0,40,40,450,450,50,50,550,60,60,650,70,750,80,90,90,91,11,11,1

0,200,200,230,230,250,250,280,300,300,330,350,380,400,450,450,450,550,550,55

768284879497

102106112120130137140144152160170180192200210213220

1,21,351,21,21,41,51,71,71,41,81,91,51,922,12,32,52,72,933,13,153,25

0,600,680,600,600,700,750,850,850,700,900,950,750,951,001,051,151,251,351,451,501,551,581,63

STAN DOFFNOMINAL

STAN DOFFFOR RE-USE

11,5234D6XF8X8

10HX10H12MX12MA-P5PSU3V3Y

1/2"5/8"3/4"3/4"7/8"1"

1-1/8"1-1/4"1-1/4"1-3/8"1-5/8"1-3/4"1-3/4"

2"2"

2-1/2"2-1/2"2-1/2"2-1/4"3-1/4"

8,3222434476281103103129187220220295295478478478381833

12,43336496991119152152189275324324435435703703703561

1227

20595779

1632153514864866521089136713672054195140484048404839398963

298783

11624131651771671696116042013201330242873596159615961432812006

XCLAMP SIZE MM MM

2X

STANDARD CLAMP SERIES

1”12 ”2”3”4”5”6”8”

10”12”

33345712141618

6668101425283236

BCDX8X10HX12MA--PSU3V3Y

3451216192020212223

68112432384041424446

HEAVY DUTY SERIES

STANDARD SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

1”

1,5”

2”

3”

4”

5”

6”

8”

10”

12”

1GR41GR51GR71GR11

1,5GR111,5GR14

2GR142GR162GR20

3GR203GR233GR253GR273GR31

4GR254GR274GR314GR344GR40

5GR315GR345GR405GR465GR52

6GR406GR466GR526GR62

8GR628GR728GR768GR82

10H8410H8710H94

12M10212M11212M120

803746564330

700450

620493359

663584433264132

645536461303174

677612517324177

655542401202

526301214144

342330277

366220161

706656496290

616395

546434316

583514381232116

568472406267153

596539455285156

576477352178

463265188126

325315254

353214157

646600453265

563361

499397289

533469349212106

519431371244140

545492416260143

527436322163

423424172116

316294227

330202148

595553418244

519333

459365266

49143332119598

478397342225129

502454383240131

485401297150

390223159106

310274212

318191133

559519392229

487313

432343250

46140630218392

449373321211121

471426360225123

456377279141

366209149100

294259196

305181121

530493372218

462297

409326237

43838528617487

426354305200115

447404341214117

432358264134

34719914195

274250186

282165113

524487368215

457294

405322235

43338128317286

421350301198113

442400337211116

428354262132

34319614094

261242174

257158102

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6 15

Buttweld HubsBlind Hubs

¨

Pressure Temperature Rating – Carbon Steel¨

DesignationsThe G-LOK® connector designation (exam-ple 4 GR 40) designates the correct hub,clamp, bolting and sealring sizes. The firstnumber (“4” in the example) refers to thehub and clamp size. The correct clamp canbe located in the clamp table on page 11.The second number in the designation(“40” in the example) refers to the sealringsize. The correct sealring can be located inthe sealring table on page 10.

G-LOK® blind hubs are designed to savespace.Available for all standard size G-LOK® con-nectors, they can carry the full basic pres-sure rating of the G-LOK® connector.They can also be used as closures for pres-sure vessels and heat exchangers, and canbe drilled and tapped to incorporate instru-mentation, and customised to fit your speci-fic requirements.

HEAVY DUTY SERIESClamp material-Low Alloy Steel

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

STANDARD HUBS

0,5”0,5”0,5”0,5”0,75”0,75”0,75”0,75”

1”1”1”1”1”

1,5”1,5”1,5”1,5”1,5”2”2”2”2”2”2”2”2”2”2”

2,5”2,5”3”3”3”3”3”3”3”3”3”4”4”4”4”4”4”4”4”4”4”

4080160XXS4080160XXS4080160XXS

10 mm4080160XXS

14,2 mm4080160160XXSXXSXXS

12,5 mm14,2 mm17,5 mm

XXS20 mm

4080160XXSXXSXXS

16 mm17,5 mm25 mm

408080120160XXSXXSXXS

7,5 mm20 mm

1GR-A51GR-A51GR-A41GR-A4GR-A71GR-A71GR-A51GR-A41GR-A111GR-A111GR-A71GR-A51GR-A51,5GR141,5GR141,5GR14

1,5GR-A111,5GR-A112GR-A202GR-A202GR-A202GR-A162GR-A202GR-A162GR142GR142GR14

2GR-A112,5-3GR-A202,5-3GR-14

3GR273GR27

3GR-A253GR-A253GR23

3GR-A203GR233GR233GR144GR404GR404GR344GR344GR344GR344GR314GR274GR314GR27

21,321,321,321,326,726,726,726,733,433,433,433,433,448,348,348,348,348,360,360,360,360,360,360,360,360,360,360,373,073,088,988,988,988,988,988,988,988,988,9114,3114,3114,3114,3114,3114,3114,3114,3114,3114,3

15,813,911,86,4

20,918,915,611,026,624,320,715,213,440,938,134,027,919,952,549,242,942,938,138,138,135,331,925,345,033,077,973,766,758,558,558,556,953,938,9102,397,297,292,187,380,180,180,179,374,3

50,850,850,850,850,850,850,850,850,850,850,850,850,879,479,479,479,479,492,192,192,192,192,192,192,192,192,192,1127,0127,0127,0127,0127,0127,0127,0127,0127,0127,0127,0152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4

44,544,544,544,544,544,544,544,544,544,544,544,544,560,360,360,360,360,369,969,969,969,969,969,969,969,969,969,982,682,682,682,682,682,682,682,682,682,682,692,192,192,192,192,192,192,192,192,192,1

44,5044,5044,5044,5044,5044,5044,5044,5044,5044,5044,5044,5044,5054,0054,0054,0054,0054,0050,8050,8050,8050,8050,8050,8050,8050,8050,8044,5063,5054,0063,5063,5063,5063,5063,5063,5063,5063,5054,0054,0054,0073,0073,0073,0073,0073,0073,0073,0073,00

38,138,138,138,138,138,138,138,138,138,138,138,138,160,360,360,360,360,373,073,073,073,073,073,073,073,073,073,0101,6101,6101,6101,6101,6101,6101,6101,6101,6101,6101,6127,0127,0127,0127,0127,0127,0127,0127,0127,0127,0

7,957,957,957,957,957,957,957,957,957,957,957,957,9511,1011,1011,10,12,7012,7011,1011,1011,1011,1011,1011,1011,1011,1011,1012,7012,7011,1012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,70

0,300,300,300,300,200,200,300,300,200,200,300,300,400,700,800,801,101,101,001,101,201,301,201,401,501,601,601,903,504,002,102,302,903,203,403,503,503,604,502,803,203,704,104,404,705,205,405,305,70

0,400,400,400,400,400,400,400,400,400,400,400,400,401,301,301,301,401,401,601,601,601,701,601,701,801,801,801,704,303,804,004,004,104,104,204,304,204,203,904,704,707,107,107,107,107,307,407,307,40

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

2”

3”

4”

6”

8”

10”

12”

14”

16”

18”

20”

24”

B14B16B20

C20C23C25C27

D27D31D34D40

XF40XF46XF56

X862X864X867X872

X10H82X10H84X10H87X10H94X10H97

X12M102X12M106X12M112X12M120

A-P106A-P112A-P120A-P130

S112S120S130S134S137S140S152

U152U160U170

3V1603V1703V1803V192

3Y1923Y2003Y2103Y220

935853784

908822730535

823779606456

1240920640

617505416320

47142346

233176

427342264166

595532427280

763689551488443429278

390355316

385337316241

534516453365

887810744

862780693507

782740594432

1200881604

586479395304

447401328221167

405325250158

577505406265

724654523464421407264

371340299

363324300227

525518427342

866790726

841761676495

763722580422

1146826566

572468385296

436391320215163

395317244154

563493396259

707638510452411397257

354323287

345310292220

510503416335

840766704

816738655480

740700562409

1114796521

555453373287

423380311209158

383308237150

546478384251

685619495439398385250

335306273

331293284214

493482403324

797728669

775701622456

703665534389

1035722496

57431355273

401361295198150

364292225142

518454365239

651588470417378366237

311291258

312276269200

478452379307

742677622

721652579424

654618497362

995693465

490401330254

373335274185140

339272209132

482423339222

605547437388352340221

296276244

296261250184

433418347282

734670616

713645573420

647612491358

960639419

485396326251

369332272183138

335269207131

477418336220

599541433383348337218

289268236

289254248179

416402341276

Page 9: Galperti Clamp Connector

C M G N

14 7

Pressure Temperature Rating – Carbon Steel¨ Buttweld Hubs

Blind Hubs

¨

STANDARD SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

1”

1,5”

2”

3”

4”

5”

6”

8”

10”

12”

1GR41GR51GR7

1GR11

1,5GR111,5GR14

2GR142GR162GR20

3GR203GR233GR253GR273GR31

4GR254GR274GR314GR344GR40

5GR315GR345GR405GR465GR52

6GR406GR466GR526GR62

8GR628GR728GR768GR82

10H8410H8710H94

12M10212M11212M120

984893572286

861485

751560414

835726529304212

818675576364198

868760656400209

843694507245

658378265174

427412346

458275201

934845543272

817461

713532393

792689502289201

777641547345188

824740623380199

800659481233

643359251165

406394318

441268196

911828530265

797450

696519383

773672490282196

758625533337184

804722608371194

781643470227

627350245161

395368284

413252185

884803514257

773436

675503372

750652475273190

735606517327178

780700590359188

757623455220

608339238156

388342265

398239166

839762488244

734414

641478353

712619451260181

698576491310169

741665560341179

719592433209

578322226148

367324245

381226151

781709454227

683385

596445328

662576420242168

649536457289157

689619521317166

669551402195

538300210138

342312323

353206141

773701449225

676381

590440325

655570415239166

643530452286156

682612515314164

662545398193

532297208137

326302218

321198128

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

4”5”5”5”5”5”5”6”6”6”6”6”6”6”6”6”6”8”8”8”8”8”8”8”8”8”8”8”8”8”8”8”8”8”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”12”12”12”12”12”12”12”12”12”12”12”12”12”12”

22,2 mm4080

120160XXS

22,2 mm4080

120120160XXSXXS

25 mm28 mm30 mm

60100120140140160160

25 mm25 mm28 mm28 mm28 mm30 mm30 mm32 mm32 mm36 mm

60100120140140160

20 mm28 mm30 mm32 mm32 mm32 mm36 mm36 mm40 mm40 mm40 mm45 mm

60100120120140140160

25 mm31,8 mm32 mm36 mm40 mm45 mm50 mm

4GR275GR525GR525GR465GR405GR405GR406GR626GR626GR626GR566GR526GR526GR466GR466GR466GR408GR828GR768GR728GR768GR728GR728GR678GR728GR678GR72

8GR-A648GR62

8GR-A648GR62

8GR-A648GR628GR6210H9710H9410H9410H9410H8710H8410H8710H8410H8410H8410H8210H7210H8410H8210H8410H7610H7210H72

12M12012M11212M11212M10612M11212M10612M10212M11212M10212M10212M10212M8412M9412M87

114,3141,3141,3141,3141,3141,3141,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8

69,9128,2122,3115,9109,5103,396,9154,1146,3139,7139,7131,9124,5124,5118,3112,3108,3198,5188,9182,7177,9177,9173,1173,1169,1169,1163,1163,1163,1159,1159,1155,1155,1147,1247,6236,6230,2222,2222,2215,8233,0217,0213,0209,0209,0209,0201,0201,0193,0193,0193,0183,0295,2281,0273,0273,0266,6266,6257,2273,8260,2259,8251,8243,8233,8223,8

152,4190,5190,5190,5190,5190,5190,5235,0235,0235,0235,0235,0235,0235,0235,0235,0235,0292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1346,1346,1346,1346,1346,1346,13461,346,1346,1346,1346,1346,1346,1346,1346,1346,1346,1346,1406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4

92,1111,1111,1111,1111,1111,1111,1117,5117,5117,5117,5117,5117,5117,5117,5117,5117,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3

73,0073,0073,0073,0088,9088,9088,9073,0073,0073,0088,9088,9088,9085,7085,7085,7085,7076,2076,2088,9076,2088,9088,9088,9088,9088,9088,90108,00108,00108,00108,00108,00108,00108,0088,9095,3095,3095,30108,00108,00108,00108,00108,00108,00127,00127,00108,00127,00108,00127,00127,00127,0098,50108,00108,00133,40108,00133,40133,40108,00133,40133,40133,40142,90133,40142,90

127,0165,1165,1165,1165,1165,1165,1196,9196,9196,9196,9196,9196,9196,9196,9196,9196,9254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6

12,7015,8815,8815,8815,8815,8815,8819,0519,0519,0520,6320,6320,6320,6320,6320,6320,6319,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7534,9331,7531,7534,9331,7534,9331,7534,9334,9334,9334,9334,9334,9334,93

5,905,405,907,709,209,90

10,509,309,90

10,1012,7014,5015,3016,3017,1017,7019,0014,5018,5021,8019,1022,4022,9024,7023,1025,2023,1027,5028,6028,0029,4028,3030,1031,1025,9030,7031,8032,5037,3040,6034,3040,3041,2042,0043,3044,2043,0044,8043,3048,8050,0053,0038,7048,2050,0055,0051,0057,0063,0050,0062,0062,0064,0071,0074,0080,00

7,4011,1011,1011,5014,7014,7014,7016,0016,0016,0021,1021,4021,4021,1021,1021,1021,6026,5027,2033,0027,3033,0033,0033,5033,0033,5033,0041,6042,1041,6042,1041,6042,1042,1045,2049,3049,3049,3057,0058,0057,0058,0058,0058,0069,0070,0058,0069,0058,0069,0070,0070,0072,0080,0080,00102,0080,00102,00103,00100,00103,00103,00103,00113,00104,00113,00

Page 10: Galperti Clamp Connector

C M G N

8 13

Heavy Duty Buttweld HubsHeavy Duty Blind Hubs

¨

Other Configurations¨

T-Let Hubs Nozzle Hub

Tee Elbow

Spade / Spacers Orifice Seal

Blind Seal Transition Seal

The G-LOK® heavy duty series is also part ofour standard connector range. Lightweightconnectors in series X14, X16, X18, X20 andX24 are available on request.

HEAVY DUTY HUBS

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

2”2”2”2”3”3”3”3”4”4”4”4”4”4”4”6”6”6”6”8”8”8”8”8”8”10”10”10”10”12”12”12”12”14”14”14”14”14”

4080160XXS4080160XXS4080120160XXS

17,5 mm20 mm

XXS32 mm28 mm30 mm25 mm25 mm28 mm30 mm32 mm36 mm20 mm36 mm36 mm40 mm25 mm36 mm45 mm50 mm

60100120140160

B-A20B-A20B-A16B14C27C27

C-A25C23D40D40D34D34D27D31D27ZX52

ZX-A42G46G46

X8GR72X8GR67

X8GR-A64X8GR62

X8GR-A64X8GR62X10H87X10H84X10H82X10H76

X12M112X12M102X12M94X12M87A-P130A-P130A-P120A-P120A-P112

60,360,360,360,388,988,988,988,9114,3114,3114,3114,3114,3114,3114,3168,3168,3168,3168,3219,1219,1219,1219,1219,1219,1273,0273,0273,0273,0323,8323,8323,8323,8355,6355,6355,6355,6355,6

52,549,242,938,177,973,766,758,5102,397,292,187,380,179,374,3124,5104,3112,3108,3169,1169,1163,1159,1155,1147,1233,0201,0201,0193,0273,8251,8233,8223,8325,4308,0300,0292,0284,2

120,7120,7120,7120,7139,7139,7139,7139,7171,5171,5171,5171,5171,5171,5171,5268,0268,0292,1292,1292,1292,1292,1292,1292,1292,1346,1346,1346,1346,1406,4406,4406,4406,4469,9469,9469,9469,9469,9

82,682,682,682,688,988,988,988,9101,6101,6101,6101,6101,6101,6101,6196,0196,0136,5136,5136,5136,5136,5136,5136,5152,4152,4152,4152,4168,3168,3168,3168,3184,2184,2184,2184,2184,2184,2

63,5063,5063,5063,5066,7066,7066,7066,7073,0073,0073,0073,0073,0073,0073,0095,3095,30108,00108,0088,9088,90108,00108,00108,00108,00108,00108,00127,00127,00108,00133,40133,40142,90152,40152,40152,40152,40152,40

95,395,395,395,3114,3114,3114,3114,3146,1146,1146,1146,1146,1146,1146,1230,0230,0241,3241,3254,0254,0254,0254,0254,0254,0295,3295,3295,3295,3355,6355,6355,6355,6419,1419,1419,1419,1419,1

15,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8821,1421,1427,0027,0019,0519,0519,0519,0519,0519,0531,7531,7531,7531,7531,7534,9334,9334,9330,1630,1631,7531,7528,57

2,802,903,203,403,303,604,204,705,405,806,807,208,208,108,6032,5038,8032,0032,4023,1025,2027,5029,4028,3031,1034,3043,0044,8048,8050,0064,0074,0080,0064,0069,0083,0085,0093,00

3,703,703,803,905,105,105,305,508,708,709,109,109,509,409,5031,0032,1034,9034,9033,0033,5041,6042,1041,6042,1057,0069,0069,0069,00100,00103,00104,00113,00158,00158,00161,00161,00162,00

Page 11: Galperti Clamp Connector

C M G N

Transition Hubs Threaded Hubs Socket Weld Hubs

Weld Overlaid Hub

Shroud Hubs Adapter Hubs Pressure - Tapped Hubs12 9

Other Configurations¨ Heavy Duty Buttweld Hubs

Heavy Duty Blind Hubs

¨

G-LOK® connectors are higly versatile and can be used inmany different applications. In addition to the standardproducts, there are many other configurations in theG-LOK® range, some of wich are illustrated below.316 stainless steel, inconel 625, hastelloy C276 weldoverlaid hub are also available for corrosive service.

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

14”14”14”14”14”14”14”14”14”16”16”16”16”16”16”16”16”16”16”16”16”16”16”18”18”18”18”18”18”18”18”18”18”18”18”20”20”20”20”20”20”20”20”20”24”24”24”24”24”24”24”24”

25 mm34,9 mm34,9 mm36 mm38 mm40 mm45 mm55 mm60 mm

60100120120140140160

28 mm34,9 mm40 mm45 mm50 mm55 mm65 mm

60100120160160

32 mm34,9 mm44 mm45 mm50 mm55 mm60 mm

4060

100120160

34,9 mm55 mm60 mm65 mm

4060

100120160

65 mm70 mm75 mm

A-P120A-P112A-P120A-P112A-P112A-P112A-P102A-P97A-P94S152S140S140S137S140S137S130S140

S-A134S130S130S120S120S112U170U160U152U152U144U152U152U152U152U152U140

U-A1343V2103V1923V1803V1703V1703V1803V1603V1523V1523Y2443Y2203Y2103Y2103Y2003Y1923Y1803Y180

355,6355,6355,6355,6355,6355,6355,6355,6355,6406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4457,2457,2457,2457,2457,2457,2457,2457,2457,2457,2457,2457,2508,0508,0508,0508,0508,0508,0508,0508,0508,0609,6609,6609,6609,6609,6609,6609,6609,6

305,6285,8285,8283,6279,6275,6265,6245,6235,6373,0354,0344,6344,6333,4333,4325,4350,4336,6326,4316,4306,4296,4276,4419,2398,4387,4366,8366,8393,2387,4369,2367,2357,2347,2337,2477,8466,8443,0431,8408,0438,2398,0388,0378,0574,8560,4531,8517,6490,6479,6469,6459,6

469,9469,9469,9469,9469,9469,9469,9469,9469,9533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4635,0635,0635,0635,0635,0635,0635,0635,0635,0635,0635,0635,0660,4660,4660,4660,4660,4660,4660,4660,4660,4793,8793,8793,8793,8793,8793,8793,8793,8

184,2184,2184,2184,2184,2184,2184,2184,2184,2200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0222,2222,2222,2222,2222,2222,2222,2222,2222,2222,2222,2228,6228,6228,6228,6228,6228,6228,6228,6228,6254,0254,0254,0254,0254,0254,0254,0254,0

152,40152,40152,40152,40152,40152,40146,00146,00146,00162,00162,00162,00162,00162,00162,00178,00162,00178,00178,00178,00190,00190,00190,00181,00184,00184,00184,00184,00184,00184,00184,00184,00184,00184,00184,00133,40159,00181,00187,00187,00181,00178,00178,00178,00181,00245,00203,00203,00203,00203,00203,00203,00

419,1419,1419,1419,1419,1419,1419,1419,1419,1482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6584,2584,2584,2584,2584,2584,2584,2584,2584,2584,2584,2584,2609,6609,6609,6609,6609,6609,6609,6609,6609,6743,0743,0743,0743,0743,0743,0743,0743,0

31,7528,5731,7528,5728,5728,5731,7531,7531,7542,8842,8842,8841,2842,8841,2842,8842,8842,8842,8842,8844,4744,4741,2841,2841,2841,2841,2841,2841,2841,2841,2841,2841,2841,2841,2831,7531,7531,7531,7531,7531,7531,7531,7531,7541,2841,2841,2841,2841,2841,2841,2841,28

80,0092,0087,0093,0095,0096,00107,00117,00122,0099,00121,00126,00127,00129,00131,00144,00123,00135,00144,00148,00162,00166,00179,00176,00203,00218,00230,00239,00213,00218,00229,00230,00232,00256,00266,0093,00156,00193,00215,00229,00196,00252,00266,00273,00242,00325,00373,00387,00430,00453,00457,00488,00

161,00162,00161,00162,00162,00162,00158,00158,00159,00225,00228,00228,00228,00228,00228,00254,00228,00253,00254,00254,00274,00274,00275,00366,00380,00382,00382,00384,00382,00382,00382,00382,00382,00385,00387,00265,00337,00393,00411,00411,00393,00397,00399,00399,00564,00796,00658,00658,00669,00672,00677,00677,00

Page 12: Galperti Clamp Connector

C M G N

12,7915,9623,0825,5528,7338,1040,9047,7153,2461,2169,1578,7183,5094,66

104,32107,50121,85136,14140,20147,25156,50167,60177,14186,70199,70212,10218,40227,90243,80253,30262,90275,60288,30298,45308,30314,70332,20344,90354,40357,60370,30389,30408,40433,50459,10490,70509,70535,30544,80561,10592,90625,10663,60676,30714,90746,60

A4A5A78

A111314

A16A2023

A2527313440

A424652545662

A646772768284879497

102106112116120122130

A134137140144152160170180192200210213220232244260264280292

25,4027,8034,9040,8044,0060,3066,7068,3082,5088,90101,60108,00114,30127,00139,70168,30157,20168,30173,10190,50200,00222,40222,30241,30254,00257,20282,60282,60304,80304,80304,80323,90358,80358,80352,40358,80381,00393,70419,10419,10431,80450,90469,90495,30520,70558,80577,90609,60619,10635,00666,80704,90749,30762,00797,00819,20

9,539,539,539,539,539,62

14,2915,8719,0519,0519,0519,0519,0519,0525,4025,4025,4025,4025,4025,4034,9334,9334,9334,9334,9334,9334,9334,9334,9334,9334,9334,9341,2834,9334,9334,9338,1038,1041,2838,1038,1038,1038,1044,5044,5044,5044,5050,8050,8050,8050,8050,8050,8050,8050,8050,80

3,173,173,173,173,173,176,356,356,356,356,356,356,356,356,346,346,346,346,346,349,539,539,539,539,539,539,539,539,539,539,539,53

15,889,539,539,53

12,7012,7015,8812,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,70

3,183,183,183,183,183,223,974,766,356,356,356,356,356,359,539,539,539,539,539,53

12,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7015,9015,9015,9015,9019,0519,0519,0519,0519,0519,0519,0519,0519,05

0,010,010,020,030,030,050,130,120,200,200,300,300,300,400,500,900,600,600,710,801,501,901,702,002,202,002,702,402,802,602,302,705,503,262,702,703,904,106,205,005,205,505,706,707,108,108,4010,2010,4010,5011,1012,2013,5013,7013,9013,2010 11

Seal Ring¨

Clamp¨

G-LOK® sealrings are available inthe following standard materials:AISI 4140, A564 GR 630 (17-4PH) and Alloy 718.They can also be supplied in othermaterials on request. They arecoated with either PTFE or MOS2 toprovide lubrication during make-up.Sealrings manufactured of mate-rials or with coatings other than

those specified in the table can beavailable to meet specific serviceconditions.For applications greater than 400°C, consult Galperti Engineering foradvice on materials and coatings.All G-LOK® sealrings meet thehardness requirements of NACE MR-01-75.For easy of identification G-LOK®

sealrings are coloured.

G-LOK® clamps are manufactured in lowalloy steel or stainless steel.Other material grades and additional si-zes can be supplied on request. Low alloysteel clamps are coated with a green indu-strial paint system for standard supply.Clamps are supplied complete with studbolting in either A193 B7, A320 L7, orA193 B8 grades. Bolting is supplied with hotdeep galvanized as standard, UNC/8UN th-read series, and spherically faced heavy hexnuts. Other coating and bolt supply optionsare available on request. Spherical washerare also available on request.Refer to page 5 for bolting and assemblyprocedures.

SIZE A C D E F WEIGHT KG

SEAL RINGS

CL A B C D E F G H I J K WEIGHT

STANDARD CLAMPS

11,5234568

10H12M

42,968,381,0111,1136,5174,6212,8269,9311,2371,5

81,0127,0146,0190,5215,9260,3320,7387,4463,6558,8

71,4114,3128,6174,6206,4247,6304,8368,3453,6527,3

108,0165,1190,0234,0266,7314,3381,0463,6558,8654,1

34,950,850,860,360,376,288,990,4143,0149,4

25,436,541,252,361,973,076,385,9117,6117,6

67,097,0111,0136,0156,0184,0217,0256,0316,0364,0

1/2”5/8”3/4”3/4”7/8”1”

1-1/8”1-1/4”1-5/8”1-3/4”

88,90127,0133,4152,4177,8203,2238,1266,7358,8406,4

58,779,490,188,9104,8112,7122,2149,2187,5190,5

31,841,346,046,052,458,761,973,292,295,3

1,704,606,4010,0014,0022,0034,0051,00105,00140,00

CL A B C D E F G H I J K WEIGHT

HEAVY DUTY CLAMPS

BCDEFXFZXGXGX8

X10HX12MA-P5PSUV3V5VY

3Y

104,8123,8155,6174,6212,8212,7246,0257,2257,2269,7311,2371,5435,0435,0500,1601,6627,0627,0627,0760,4760,4

184,2203,2242,9260,4320,7343,0410,0406,4406,4412,8495,3590,6635,0711,2765,2860,4762,0889,0952,4984,3

1137,6

174,6196,8228,6247,6304,8327,0388,0375,0381,0384,0463,6546,1584,2650,9698,5793,8804,9836,6887,4

952,501079,5

228,6254,0295,8314,3381,0406,0485,0477,0508,0482,6590,6692,2736,6838,2892,2990,6870,0997,0

1079,51111,31299,2

73,076,276,276,288,9

102,0125,0116,0127,0104,6165,1184,0154,0203,2228,6222,3165,1203,2247,7228,6322,3

58,761,968,373,076,383,0105,089,0114,385,9119,0131,7114,3142,9149,2165,1233,4152,4177,8220,7222,3

141,0151,0175,0184,0217,0234,0273,0271,0284,0271,0338,0398,0403,0465,0500,0541,0535,0563,0593,0642,0711,0

7/8”7/8”1”1”

1-1/8”1-1/4”1-1/4”1-3/8”1-3/8”1-3/8”1-3/4”

2”2”

2-1/2”2-1/2”2-1/2”2-1/4”2-1/4”2-1/2”2-3/4”2-1/4”

171,5177,8203,2203,2238,1279,4217,5279,4330,2279,4406,7469,9419,1508,0558,8558,8685,8609,6

609,60730,3762,0

99,9103,2112,7112,7122,2130,0150,0152,4152,4152,4190,5216,0209,5266,7266,7279,4235,0235,0279,4279,4362,0

50,852,458,758,761,970,075,079,479,482,695,3

114,3108,0139,7139,7139,7127,0127,0139,7152,4190,5

13,0016,0020,0022,0034,0048,0090,0060,0071,0059,00

145,00225,00175,00360,00440,00450,00330,00440,00720,00570,001230,00

Page 13: Galperti Clamp Connector

C M G N

12,7915,9623,0825,5528,7338,1040,9047,7153,2461,2169,1578,7183,5094,66

104,32107,50121,85136,14140,20147,25156,50167,60177,14186,70199,70212,10218,40227,90243,80253,30262,90275,60288,30298,45308,30314,70332,20344,90354,40357,60370,30389,30408,40433,50459,10490,70509,70535,30544,80561,10592,90625,10663,60676,30714,90746,60

A4A5A78

A111314

A16A2023

A2527313440

A424652545662

A646772768284879497

102106112116120122130

A134137140144152160170180192200210213220232244260264280292

25,4027,8034,9040,8044,0060,3066,7068,3082,5088,90101,60108,00114,30127,00139,70168,30157,20168,30173,10190,50200,00222,40222,30241,30254,00257,20282,60282,60304,80304,80304,80323,90358,80358,80352,40358,80381,00393,70419,10419,10431,80450,90469,90495,30520,70558,80577,90609,60619,10635,00666,80704,90749,30762,00797,00819,20

9,539,539,539,539,539,62

14,2915,8719,0519,0519,0519,0519,0519,0525,4025,4025,4025,4025,4025,4034,9334,9334,9334,9334,9334,9334,9334,9334,9334,9334,9334,9341,2834,9334,9334,9338,1038,1041,2838,1038,1038,1038,1044,5044,5044,5044,5050,8050,8050,8050,8050,8050,8050,8050,8050,80

3,173,173,173,173,173,176,356,356,356,356,356,356,356,356,346,346,346,346,346,349,539,539,539,539,539,539,539,539,539,539,539,53

15,889,539,539,53

12,7012,7015,8812,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,70

3,183,183,183,183,183,223,974,766,356,356,356,356,356,359,539,539,539,539,539,53

12,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7015,9015,9015,9015,9019,0519,0519,0519,0519,0519,0519,0519,0519,05

0,010,010,020,030,030,050,130,120,200,200,300,300,300,400,500,900,600,600,710,801,501,901,702,002,202,002,702,402,802,602,302,705,503,262,702,703,904,106,205,005,205,505,706,707,108,108,4010,2010,4010,5011,1012,2013,5013,7013,9013,2010 11

Seal Ring¨

Clamp¨

G-LOK® sealrings are available inthe following standard materials:AISI 4140, A564 GR 630 (17-4PH) and Alloy 718.They can also be supplied in othermaterials on request. They arecoated with either PTFE or MOS2 toprovide lubrication during make-up.Sealrings manufactured of mate-rials or with coatings other than

those specified in the table can beavailable to meet specific serviceconditions.For applications greater than 400°C, consult Galperti Engineering foradvice on materials and coatings.All G-LOK® sealrings meet thehardness requirements of NACE MR-01-75.For easy of identification G-LOK®

sealrings are coloured.

G-LOK® clamps are manufactured in lowalloy steel or stainless steel.Other material grades and additional si-zes can be supplied on request. Low alloysteel clamps are coated with a green indu-strial paint system for standard supply.Clamps are supplied complete with studbolting in either A193 B7, A320 L7, orA193 B8 grades. Bolting is supplied with hotdeep galvanized as standard, UNC/8UN th-read series, and spherically faced heavy hexnuts. Other coating and bolt supply optionsare available on request. Spherical washerare also available on request.Refer to page 5 for bolting and assemblyprocedures.

SIZE A C D E F WEIGHT KG

SEAL RINGS

CL A B C D E F G H I J K WEIGHT

STANDARD CLAMPS

11,5234568

10H12M

42,968,381,0111,1136,5174,6212,8269,9311,2371,5

81,0127,0146,0190,5215,9260,3320,7387,4463,6558,8

71,4114,3128,6174,6206,4247,6304,8368,3453,6527,3

108,0165,1190,0234,0266,7314,3381,0463,6558,8654,1

34,950,850,860,360,376,288,990,4143,0149,4

25,436,541,252,361,973,076,385,9117,6117,6

67,097,0111,0136,0156,0184,0217,0256,0316,0364,0

1/2”5/8”3/4”3/4”7/8”1”

1-1/8”1-1/4”1-5/8”1-3/4”

88,90127,0133,4152,4177,8203,2238,1266,7358,8406,4

58,779,490,188,9104,8112,7122,2149,2187,5190,5

31,841,346,046,052,458,761,973,292,295,3

1,704,606,4010,0014,0022,0034,0051,00105,00140,00

CL A B C D E F G H I J K WEIGHT

HEAVY DUTY CLAMPS

BCDEFXFZXGXGX8

X10HX12MA-P5PSUV3V5VY

3Y

104,8123,8155,6174,6212,8212,7246,0257,2257,2269,7311,2371,5435,0435,0500,1601,6627,0627,0627,0760,4760,4

184,2203,2242,9260,4320,7343,0410,0406,4406,4412,8495,3590,6635,0711,2765,2860,4762,0889,0952,4984,3

1137,6

174,6196,8228,6247,6304,8327,0388,0375,0381,0384,0463,6546,1584,2650,9698,5793,8804,9836,6887,4

952,501079,5

228,6254,0295,8314,3381,0406,0485,0477,0508,0482,6590,6692,2736,6838,2892,2990,6870,0997,0

1079,51111,31299,2

73,076,276,276,288,9

102,0125,0116,0127,0104,6165,1184,0154,0203,2228,6222,3165,1203,2247,7228,6322,3

58,761,968,373,076,383,0105,089,0114,385,9119,0131,7114,3142,9149,2165,1233,4152,4177,8220,7222,3

141,0151,0175,0184,0217,0234,0273,0271,0284,0271,0338,0398,0403,0465,0500,0541,0535,0563,0593,0642,0711,0

7/8”7/8”1”1”

1-1/8”1-1/4”1-1/4”1-3/8”1-3/8”1-3/8”1-3/4”

2”2”

2-1/2”2-1/2”2-1/2”2-1/4”2-1/4”2-1/2”2-3/4”2-1/4”

171,5177,8203,2203,2238,1279,4217,5279,4330,2279,4406,7469,9419,1508,0558,8558,8685,8609,6

609,60730,3762,0

99,9103,2112,7112,7122,2130,0150,0152,4152,4152,4190,5216,0209,5266,7266,7279,4235,0235,0279,4279,4362,0

50,852,458,758,761,970,075,079,479,482,695,3

114,3108,0139,7139,7139,7127,0127,0139,7152,4190,5

13,0016,0020,0022,0034,0048,0090,0060,0071,0059,00

145,00225,00175,00360,00440,00450,00330,00440,00720,00570,001230,00

Page 14: Galperti Clamp Connector

C M G N

Transition Hubs Threaded Hubs Socket Weld Hubs

Weld Overlaid Hub

Shroud Hubs Adapter Hubs Pressure - Tapped Hubs12 9

Other Configurations¨ Heavy Duty Buttweld Hubs

Heavy Duty Blind Hubs

¨

G-LOK® connectors are higly versatile and can be used inmany different applications. In addition to the standardproducts, there are many other configurations in theG-LOK® range, some of wich are illustrated below.316 stainless steel, inconel 625, hastelloy C276 weldoverlaid hub are also available for corrosive service.

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

14”14”14”14”14”14”14”14”14”16”16”16”16”16”16”16”16”16”16”16”16”16”16”18”18”18”18”18”18”18”18”18”18”18”18”20”20”20”20”20”20”20”20”20”24”24”24”24”24”24”24”24”

25 mm34,9 mm34,9 mm36 mm38 mm40 mm45 mm55 mm60 mm

60100120120140140160

28 mm34,9 mm40 mm45 mm50 mm55 mm65 mm

60100120160160

32 mm34,9 mm44 mm45 mm50 mm55 mm60 mm

4060

100120160

34,9 mm55 mm60 mm65 mm

4060

100120160

65 mm70 mm75 mm

A-P120A-P112A-P120A-P112A-P112A-P112A-P102A-P97A-P94S152S140S140S137S140S137S130S140

S-A134S130S130S120S120S112U170U160U152U152U144U152U152U152U152U152U140

U-A1343V2103V1923V1803V1703V1703V1803V1603V1523V1523Y2443Y2203Y2103Y2103Y2003Y1923Y1803Y180

355,6355,6355,6355,6355,6355,6355,6355,6355,6406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4457,2457,2457,2457,2457,2457,2457,2457,2457,2457,2457,2457,2508,0508,0508,0508,0508,0508,0508,0508,0508,0609,6609,6609,6609,6609,6609,6609,6609,6

305,6285,8285,8283,6279,6275,6265,6245,6235,6373,0354,0344,6344,6333,4333,4325,4350,4336,6326,4316,4306,4296,4276,4419,2398,4387,4366,8366,8393,2387,4369,2367,2357,2347,2337,2477,8466,8443,0431,8408,0438,2398,0388,0378,0574,8560,4531,8517,6490,6479,6469,6459,6

469,9469,9469,9469,9469,9469,9469,9469,9469,9533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4533,4635,0635,0635,0635,0635,0635,0635,0635,0635,0635,0635,0635,0660,4660,4660,4660,4660,4660,4660,4660,4660,4793,8793,8793,8793,8793,8793,8793,8793,8

184,2184,2184,2184,2184,2184,2184,2184,2184,2200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0200,0222,2222,2222,2222,2222,2222,2222,2222,2222,2222,2222,2228,6228,6228,6228,6228,6228,6228,6228,6228,6254,0254,0254,0254,0254,0254,0254,0254,0

152,40152,40152,40152,40152,40152,40146,00146,00146,00162,00162,00162,00162,00162,00162,00178,00162,00178,00178,00178,00190,00190,00190,00181,00184,00184,00184,00184,00184,00184,00184,00184,00184,00184,00184,00133,40159,00181,00187,00187,00181,00178,00178,00178,00181,00245,00203,00203,00203,00203,00203,00203,00

419,1419,1419,1419,1419,1419,1419,1419,1419,1482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6482,6584,2584,2584,2584,2584,2584,2584,2584,2584,2584,2584,2584,2609,6609,6609,6609,6609,6609,6609,6609,6609,6743,0743,0743,0743,0743,0743,0743,0743,0

31,7528,5731,7528,5728,5728,5731,7531,7531,7542,8842,8842,8841,2842,8841,2842,8842,8842,8842,8842,8844,4744,4741,2841,2841,2841,2841,2841,2841,2841,2841,2841,2841,2841,2841,2831,7531,7531,7531,7531,7531,7531,7531,7531,7541,2841,2841,2841,2841,2841,2841,2841,28

80,0092,0087,0093,0095,0096,00107,00117,00122,0099,00121,00126,00127,00129,00131,00144,00123,00135,00144,00148,00162,00166,00179,00176,00203,00218,00230,00239,00213,00218,00229,00230,00232,00256,00266,0093,00156,00193,00215,00229,00196,00252,00266,00273,00242,00325,00373,00387,00430,00453,00457,00488,00

161,00162,00161,00162,00162,00162,00158,00158,00159,00225,00228,00228,00228,00228,00228,00254,00228,00253,00254,00254,00274,00274,00275,00366,00380,00382,00382,00384,00382,00382,00382,00382,00382,00385,00387,00265,00337,00393,00411,00411,00393,00397,00399,00399,00564,00796,00658,00658,00669,00672,00677,00677,00

Page 15: Galperti Clamp Connector

C M G N

8 13

Heavy Duty Buttweld HubsHeavy Duty Blind Hubs

¨

Other Configurations¨

T-Let Hubs Nozzle Hub

Tee Elbow

Spade / Spacers Orifice Seal

Blind Seal Transition Seal

The G-LOK® heavy duty series is also part ofour standard connector range. Lightweightconnectors in series X14, X16, X18, X20 andX24 are available on request.

HEAVY DUTY HUBS

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

2”2”2”2”3”3”3”3”4”4”4”4”4”4”4”6”6”6”6”8”8”8”8”8”8”10”10”10”10”12”12”12”12”14”14”14”14”14”

4080160XXS4080160XXS4080120160XXS

17,5 mm20 mm

XXS32 mm28 mm30 mm25 mm25 mm28 mm30 mm32 mm36 mm20 mm36 mm36 mm40 mm25 mm36 mm45 mm50 mm

60100120140160

B-A20B-A20B-A16B14C27C27

C-A25C23D40D40D34D34D27D31D27ZX52

ZX-A42G46G46

X8GR72X8GR67

X8GR-A64X8GR62

X8GR-A64X8GR62X10H87X10H84X10H82X10H76

X12M112X12M102X12M94X12M87A-P130A-P130A-P120A-P120A-P112

60,360,360,360,388,988,988,988,9114,3114,3114,3114,3114,3114,3114,3168,3168,3168,3168,3219,1219,1219,1219,1219,1219,1273,0273,0273,0273,0323,8323,8323,8323,8355,6355,6355,6355,6355,6

52,549,242,938,177,973,766,758,5102,397,292,187,380,179,374,3124,5104,3112,3108,3169,1169,1163,1159,1155,1147,1233,0201,0201,0193,0273,8251,8233,8223,8325,4308,0300,0292,0284,2

120,7120,7120,7120,7139,7139,7139,7139,7171,5171,5171,5171,5171,5171,5171,5268,0268,0292,1292,1292,1292,1292,1292,1292,1292,1346,1346,1346,1346,1406,4406,4406,4406,4469,9469,9469,9469,9469,9

82,682,682,682,688,988,988,988,9101,6101,6101,6101,6101,6101,6101,6196,0196,0136,5136,5136,5136,5136,5136,5136,5152,4152,4152,4152,4168,3168,3168,3168,3184,2184,2184,2184,2184,2184,2

63,5063,5063,5063,5066,7066,7066,7066,7073,0073,0073,0073,0073,0073,0073,0095,3095,30108,00108,0088,9088,90108,00108,00108,00108,00108,00108,00127,00127,00108,00133,40133,40142,90152,40152,40152,40152,40152,40

95,395,395,395,3114,3114,3114,3114,3146,1146,1146,1146,1146,1146,1146,1230,0230,0241,3241,3254,0254,0254,0254,0254,0254,0295,3295,3295,3295,3355,6355,6355,6355,6419,1419,1419,1419,1419,1

15,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8815,8821,1421,1427,0027,0019,0519,0519,0519,0519,0519,0531,7531,7531,7531,7531,7534,9334,9334,9330,1630,1631,7531,7528,57

2,802,903,203,403,303,604,204,705,405,806,807,208,208,108,6032,5038,8032,0032,4023,1025,2027,5029,4028,3031,1034,3043,0044,8048,8050,0064,0074,0080,0064,0069,0083,0085,0093,00

3,703,703,803,905,105,105,305,508,708,709,109,109,509,409,5031,0032,1034,9034,9033,0033,5041,6042,1041,6042,1057,0069,0069,0069,00100,00103,00104,00113,00158,00158,00161,00161,00162,00

Page 16: Galperti Clamp Connector

C M G N

14 7

Pressure Temperature Rating – Carbon Steel¨ Buttweld Hubs

Blind Hubs

¨

STANDARD SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

1”

1,5”

2”

3”

4”

5”

6”

8”

10”

12”

1GR41GR51GR7

1GR11

1,5GR111,5GR14

2GR142GR162GR20

3GR203GR233GR253GR273GR31

4GR254GR274GR314GR344GR40

5GR315GR345GR405GR465GR52

6GR406GR466GR526GR62

8GR628GR728GR768GR82

10H8410H8710H94

12M10212M11212M120

984893572286

861485

751560414

835726529304212

818675576364198

868760656400209

843694507245

658378265174

427412346

458275201

934845543272

817461

713532393

792689502289201

777641547345188

824740623380199

800659481233

643359251165

406394318

441268196

911828530265

797450

696519383

773672490282196

758625533337184

804722608371194

781643470227

627350245161

395368284

413252185

884803514257

773436

675503372

750652475273190

735606517327178

780700590359188

757623455220

608339238156

388342265

398239166

839762488244

734414

641478353

712619451260181

698576491310169

741665560341179

719592433209

578322226148

367324245

381226151

781709454227

683385

596445328

662576420242168

649536457289157

689619521317166

669551402195

538300210138

342312323

353206141

773701449225

676381

590440325

655570415239166

643530452286156

682612515314164

662545398193

532297208137

326302218

321198128

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

4”5”5”5”5”5”5”6”6”6”6”6”6”6”6”6”6”8”8”8”8”8”8”8”8”8”8”8”8”8”8”8”8”8”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”10”12”12”12”12”12”12”12”12”12”12”12”12”12”12”

22,2 mm4080

120160XXS

22,2 mm4080

120120160XXSXXS

25 mm28 mm30 mm

60100120140140160160

25 mm25 mm28 mm28 mm28 mm30 mm30 mm32 mm32 mm36 mm

60100120140140160

20 mm28 mm30 mm32 mm32 mm32 mm36 mm36 mm40 mm40 mm40 mm45 mm

60100120120140140160

25 mm31,8 mm32 mm36 mm40 mm45 mm50 mm

4GR275GR525GR525GR465GR405GR405GR406GR626GR626GR626GR566GR526GR526GR466GR466GR466GR408GR828GR768GR728GR768GR728GR728GR678GR728GR678GR72

8GR-A648GR62

8GR-A648GR62

8GR-A648GR628GR6210H9710H9410H9410H9410H8710H8410H8710H8410H8410H8410H8210H7210H8410H8210H8410H7610H7210H72

12M12012M11212M11212M10612M11212M10612M10212M11212M10212M10212M10212M8412M9412M87

114,3141,3141,3141,3141,3141,3141,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1219,1273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0273,0323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8323,8

69,9128,2122,3115,9109,5103,396,9154,1146,3139,7139,7131,9124,5124,5118,3112,3108,3198,5188,9182,7177,9177,9173,1173,1169,1169,1163,1163,1163,1159,1159,1155,1155,1147,1247,6236,6230,2222,2222,2215,8233,0217,0213,0209,0209,0209,0201,0201,0193,0193,0193,0183,0295,2281,0273,0273,0266,6266,6257,2273,8260,2259,8251,8243,8233,8223,8

152,4190,5190,5190,5190,5190,5190,5235,0235,0235,0235,0235,0235,0235,0235,0235,0235,0292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1292,1346,1346,1346,1346,1346,1346,13461,346,1346,1346,1346,1346,1346,1346,1346,1346,1346,1346,1406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4406,4

92,1111,1111,1111,1111,1111,1111,1117,5117,5117,5117,5117,5117,5117,5117,5117,5117,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5136,5152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3168,3

73,0073,0073,0073,0088,9088,9088,9073,0073,0073,0088,9088,9088,9085,7085,7085,7085,7076,2076,2088,9076,2088,9088,9088,9088,9088,9088,90108,00108,00108,00108,00108,00108,00108,0088,9095,3095,3095,30108,00108,00108,00108,00108,00108,00127,00127,00108,00127,00108,00127,00127,00127,0098,50108,00108,00133,40108,00133,40133,40108,00133,40133,40133,40142,90133,40142,90

127,0165,1165,1165,1165,1165,1165,1196,9196,9196,9196,9196,9196,9196,9196,9196,9196,9254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0254,0295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3295,3355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6355,6

12,7015,8815,8815,8815,8815,8815,8819,0519,0519,0520,6320,6320,6320,6320,6320,6320,6319,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0519,0531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7531,7534,9331,7531,7534,9331,7534,9331,7534,9334,9334,9334,9334,9334,9334,93

5,905,405,907,709,209,90

10,509,309,90

10,1012,7014,5015,3016,3017,1017,7019,0014,5018,5021,8019,1022,4022,9024,7023,1025,2023,1027,5028,6028,0029,4028,3030,1031,1025,9030,7031,8032,5037,3040,6034,3040,3041,2042,0043,3044,2043,0044,8043,3048,8050,0053,0038,7048,2050,0055,0051,0057,0063,0050,0062,0062,0064,0071,0074,0080,00

7,4011,1011,1011,5014,7014,7014,7016,0016,0016,0021,1021,4021,4021,1021,1021,1021,6026,5027,2033,0027,3033,0033,0033,5033,0033,5033,0041,6042,1041,6042,1041,6042,1042,1045,2049,3049,3049,3057,0058,0057,0058,0058,0058,0069,0070,0058,0069,0058,0069,0070,0070,0072,0080,0080,00102,0080,00102,00103,00100,00103,00103,00103,00113,00104,00113,00

Page 17: Galperti Clamp Connector

C M G N

6 15

Buttweld HubsBlind Hubs

¨

Pressure Temperature Rating – Carbon Steel¨

DesignationsThe G-LOK® connector designation (exam-ple 4 GR 40) designates the correct hub,clamp, bolting and sealring sizes. The firstnumber (“4” in the example) refers to thehub and clamp size. The correct clamp canbe located in the clamp table on page 11.The second number in the designation(“40” in the example) refers to the sealringsize. The correct sealring can be located inthe sealring table on page 10.

G-LOK® blind hubs are designed to savespace.Available for all standard size G-LOK® con-nectors, they can carry the full basic pres-sure rating of the G-LOK® connector.They can also be used as closures for pres-sure vessels and heat exchangers, and canbe drilled and tapped to incorporate instru-mentation, and customised to fit your speci-fic requirements.

HEAVY DUTY SERIESClamp material-Low Alloy Steel

NPS SCH. G-LOK®

SIZE

PIPEO.D.

A B C D D1 E F KG KG

INSIDEDIAMETER

OUTSIDEDIAMETER

BW-HUBLENGTH

BL-HUBLENGTH

HUB BACKFACE Ø

LIPTHICKNESS

BW-HUBWEIGHT

BL-HUBWEIGHT

STANDARD HUBS

0,5”0,5”0,5”0,5”0,75”0,75”0,75”0,75”

1”1”1”1”1”

1,5”1,5”1,5”1,5”1,5”2”2”2”2”2”2”2”2”2”2”

2,5”2,5”3”3”3”3”3”3”3”3”3”4”4”4”4”4”4”4”4”4”4”

4080160XXS4080160XXS4080160XXS

10 mm4080160XXS

14,2 mm4080160160XXSXXSXXS

12,5 mm14,2 mm17,5 mm

XXS20 mm

4080160XXSXXSXXS

16 mm17,5 mm25 mm

408080120160XXSXXSXXS

7,5 mm20 mm

1GR-A51GR-A51GR-A41GR-A4GR-A71GR-A71GR-A51GR-A41GR-A111GR-A111GR-A71GR-A51GR-A51,5GR141,5GR141,5GR14

1,5GR-A111,5GR-A112GR-A202GR-A202GR-A202GR-A162GR-A202GR-A162GR142GR142GR14

2GR-A112,5-3GR-A202,5-3GR-14

3GR273GR27

3GR-A253GR-A253GR23

3GR-A203GR233GR233GR144GR404GR404GR344GR344GR344GR344GR314GR274GR314GR27

21,321,321,321,326,726,726,726,733,433,433,433,433,448,348,348,348,348,360,360,360,360,360,360,360,360,360,360,373,073,088,988,988,988,988,988,988,988,988,9114,3114,3114,3114,3114,3114,3114,3114,3114,3114,3

15,813,911,86,4

20,918,915,611,026,624,320,715,213,440,938,134,027,919,952,549,242,942,938,138,138,135,331,925,345,033,077,973,766,758,558,558,556,953,938,9102,397,297,292,187,380,180,180,179,374,3

50,850,850,850,850,850,850,850,850,850,850,850,850,879,479,479,479,479,492,192,192,192,192,192,192,192,192,192,1127,0127,0127,0127,0127,0127,0127,0127,0127,0127,0127,0152,4152,4152,4152,4152,4152,4152,4152,4152,4152,4

44,544,544,544,544,544,544,544,544,544,544,544,544,560,360,360,360,360,369,969,969,969,969,969,969,969,969,969,982,682,682,682,682,682,682,682,682,682,682,692,192,192,192,192,192,192,192,192,192,1

44,5044,5044,5044,5044,5044,5044,5044,5044,5044,5044,5044,5044,5054,0054,0054,0054,0054,0050,8050,8050,8050,8050,8050,8050,8050,8050,8044,5063,5054,0063,5063,5063,5063,5063,5063,5063,5063,5054,0054,0054,0073,0073,0073,0073,0073,0073,0073,0073,00

38,138,138,138,138,138,138,138,138,138,138,138,138,160,360,360,360,360,373,073,073,073,073,073,073,073,073,073,0101,6101,6101,6101,6101,6101,6101,6101,6101,6101,6101,6127,0127,0127,0127,0127,0127,0127,0127,0127,0127,0

7,957,957,957,957,957,957,957,957,957,957,957,957,9511,1011,1011,10,12,7012,7011,1011,1011,1011,1011,1011,1011,1011,1011,1012,7012,7011,1012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,7012,70

0,300,300,300,300,200,200,300,300,200,200,300,300,400,700,800,801,101,101,001,101,201,301,201,401,501,601,601,903,504,002,102,302,903,203,403,503,503,604,502,803,203,704,104,404,705,205,405,305,70

0,400,400,400,400,400,400,400,400,400,400,400,400,401,301,301,301,401,401,601,601,601,701,601,701,801,801,801,704,303,804,004,004,104,104,204,304,204,203,904,704,707,107,107,107,107,307,407,307,40

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

2”

3”

4”

6”

8”

10”

12”

14”

16”

18”

20”

24”

B14B16B20

C20C23C25C27

D27D31D34D40

XF40XF46XF56

X862X864X867X872

X10H82X10H84X10H87X10H94X10H97

X12M102X12M106X12M112X12M120

A-P106A-P112A-P120A-P130

S112S120S130S134S137S140S152

U152U160U170

3V1603V1703V1803V192

3Y1923Y2003Y2103Y220

935853784

908822730535

823779606456

1240920640

617505416320

47142346

233176

427342264166

595532427280

763689551488443429278

390355316

385337316241

534516453365

887810744

862780693507

782740594432

1200881604

586479395304

447401328221167

405325250158

577505406265

724654523464421407264

371340299

363324300227

525518427342

866790726

841761676495

763722580422

1146826566

572468385296

436391320215163

395317244154

563493396259

707638510452411397257

354323287

345310292220

510503416335

840766704

816738655480

740700562409

1114796521

555453373287

423380311209158

383308237150

546478384251

685619495439398385250

335306273

331293284214

493482403324

797728669

775701622456

703665534389

1035722496

57431355273

401361295198150

364292225142

518454365239

651588470417378366237

311291258

312276269200

478452379307

742677622

721652579424

654618497362

995693465

490401330254

373335274185140

339272209132

482423339222

605547437388352340221

296276244

296261250184

433418347282

734670616

713645573420

647612491358

960639419

485396326251

369332272183138

335269207131

477418336220

599541433383348337218

289268236

289254248179

416402341276

Page 18: Galperti Clamp Connector

C M G N

16 5

Pressure Temperature Rating – Stainless Steel¨

Assembly and Dis-Assembly Procedure¨

INSPECT COMPONENTS PRIORTO ASSEMBLYHub and sealring seating surfaces must beclean and free from foreign matter. Damage tohub seats is not acceptable, and should be rec-tified before assembly.

LUBRICATEUsually sealrings are coated which acts as lu-brificant during make-upe. If required light oilor MoS2 spray can be used. Take care that nosolid particles are present in the lubricant.

CHECK SEALRING STANDOFFThe sealring should rock slightly against hubface.Stand-off dimensions given below in mm.

ASSEMBLE COMPONENTSInstall sealring into the hubs, and assembleclamps around the hubs. Lubricant applied tothe hub/clamp contact area will aid assembly.The studbolts should be fitted ensuring thatspherically faced nuts locate into sphericalseats of the clamps. Lubrication of nut facesand bolt threads is recommended.

TIGHTEN BOLTS IN UNIFORM MANNERBolting should be tightened to keep spacingbetween clamp halves approximately equal.Clamp segments should be shocked with suita-ble soft faced hammer to aid assembly. Alwaysre-t ighten bolts after shocking to thetorque/preload values given below.

ALIGN HUBSHubs should be aligned so that sealring can beinstalled between hubs. DO NOT attempt tocorrect badly mis-aligned piping by clampingforce alone; piping pulling forces should onlybe released when clamps is fully assembled.

ASSEMBLY

DE-PRESSURISE THE LINEAlways check, never take for granted that theline has been de-pressurised. Proceed withcaution in case seepage has caused pressureto build up again.

SLACKEN NUTS BUT DO NOT REMOVE THENUTS FROM THE BOLTS - THEN SLACKENCLAMP SEGMENTSGradually run the nuts back along the bolts un-til just loose. If clamp segments remain boundonto hubs, then BOTH segments must beslackened by hitting the inner face of the clamplugs with a suitable hammer.

REPEAT SLACKENING PROCEDURERe-loosen nuts and re-slacken BOTH clampsegments until the maximum nut travel shownbelow is reached. This should release seal ringcontact and any residual pressure will then bereleased through, with the joint.

CHECK CLAMPS ARE SLACK AND FREE TOROTATE AND/OR ROCK ABOUT HUBSDo not proceed until discharge ceases andclamps are slack, free to rotate or rock. NOTE- If pressure is still in the line, the sealring mi-ght remain seated, making the joint tight eventhough it is part dis-assembled. Dis-assemblycan be completed when clamps are free to mo-ve.

X = Nut travel at each end of bolt

2X = Total nut travel from assembled position

DIS-ASSEMBLY

SEAL RINGSIZE

CLAMPSIZE

BOLTSIZE

RECOMANDEDBOLT TENSIONRESIDUAL (KN)

MAXIMUMBOLT TENSIONRESIDUAL (KN)

RECOMANDEDBOLT TORQUEnu=0,10 (Nm)

MAXIMUMBOLT TORQUEnu=0,10 (Nm)

A4A5A7

A1114

A16A2023

A2527313440465256626772

0,40,40,450,450,50,50,550,60,60,650,70,750,80,90,90,91,11,11,1

0,200,200,230,230,250,250,280,300,300,330,350,380,400,450,450,450,550,550,55

768284879497

102106112120130137140144152160170180192200210213220

1,21,351,21,21,41,51,71,71,41,81,91,51,922,12,32,52,72,933,13,153,25

0,600,680,600,600,700,750,850,850,700,900,950,750,951,001,051,151,251,351,451,501,551,581,63

STAN DOFFNOMINAL

STAN DOFFFOR RE-USE

11,5234D6XF8X8

10HX10H12MX12MA-P5PSU3V3Y

1/2"5/8"3/4"3/4"7/8"1"

1-1/8"1-1/4"1-1/4"1-3/8"1-5/8"1-3/4"1-3/4"

2"2"

2-1/2"2-1/2"2-1/2"2-1/4"3-1/4"

8,3222434476281103103129187220220295295478478478381833

12,43336496991119152152189275324324435435703703703561

1227

20595779

1632153514864866521089136713672054195140484048404839398963

298783

11624131651771671696116042013201330242873596159615961432812006

XCLAMP SIZE MM MM

2X

STANDARD CLAMP SERIES

1”12 ”2”3”4”5”6”8”

10”12”

33345712141618

6668101425283236

BCDX8X10HX12MA--PSU3V3Y

3451216192020212223

68112432384041424446

HEAVY DUTY SERIES

STANDARD SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

1”

1,5”

2”

3”

4”

5”

6”

8”

10”

12”

1GR41GR51GR71GR11

1,5GR111,5GR14

2GR142GR162GR20

3GR203GR233GR253GR273GR31

4GR254GR274GR314GR344GR40

5GR315GR345GR405GR465GR52

6GR406GR466GR526GR62

8GR628GR728GR768GR82

10H8410H8710H94

12M10212M11212M120

803746564330

700450

620493359

663584433264132

645536461303174

677612517324177

655542401202

526301214144

342330277

366220161

706656496290

616395

546434316

583514381232116

568472406267153

596539455285156

576477352178

463265188126

325315254

353214157

646600453265

563361

499397289

533469349212106

519431371244140

545492416260143

527436322163

423424172116

316294227

330202148

595553418244

519333

459365266

49143332119598

478397342225129

502454383240131

485401297150

390223159106

310274212

318191133

559519392229

487313

432343250

46140630218392

449373321211121

471426360225123

456377279141

366209149100

294259196

305181121

530493372218

462297

409326237

43838528617487

426354305200115

447404341214117

432358264134

34719914195

274250186

282165113

524487368215

457294

405322235

43338128317286

421350301198113

442400337211116

428354262132

34319614094

261242174

257158102

Page 19: Galperti Clamp Connector

C M G N

4 17

Sizing Selections¨

Pressure Temperature Rating – Stainless Steel¨

HOW TO SELECTTHE G-LOK® CONNECTOR

1) Determine the following information needed tocorrectly size the G-LOK® connector:

• Maximum Service Pressure and Temperature (YourDesign Conditions)

• The engineering or industry code your project hasspecified. (ASME VIII, B31.3, etc.)

• Pipe size and schedule or the I.D. and O.D. of theweld end.

• Your piping material.

2) Refer to the tables in this catalogue:

• Locate your pipe size and schedule in the Buttweld hub table on pages 6 to 7, then read acrossto the corresponding hub size (third column). Asan example, the 4” schedule 40 Pipe requires aG-LOK® Hub size of 4GR40. Also note that thischart has weights and dimensions for this hub andfor most popular hub sizes.

• The G-LOK® number for the 4GR40 designates thecorrect clamp, bolting and seal ring sizes for thisconnection. The first number refers to the pipe andclamp size, in our example the pipe size is 4” andthe clamp would be the 4. More information onthe clamp can be located in the Clamp table onpage 11.

• The final set of numbers is the G-LOK® seal for thisconnection (in our example this would be a 40).The G-LOK® seal chart is located on page 10.

3) Finally, refer to the pressure-temperature ratingcharts, on pages 14 to 19, to ensure that theG-LOK® connector selected meets the design pressu-re and temperature requirements for the code towhich it is being specified.

The standard line of G-LOK® connectors andproducts are available in materials and sizesto fit nearly any requirement. But if your requi-rements, pipe size, material or design condi-tions, are not covered by one of our charts,please contact Galperti Engineering. We havean engineering and design staff ready to helpyou solve your most demanding needs.

HOW TO ORDERTHE G-LOK® CONNECTOR

After following the selection procedures the informa-tion necessary for ordering G-LOK® connectors isthe quantity, the hub number and material, the sealnumber and seal material, and the clamp numberand clamp material.

A G-LOK® assembly consists of the following:

• Two G-LOK® Hubs

• One G-LOK® Clamp Set, with four studs and eightnuts (Spherical washer available on request)

• One G-LOK® Seal Ring

HEAVY DUTY SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 50°C 100°C 150°C 200°C 250°C 300°C 350°C

PRESSURE RATING (BAR)

2”

3”

4”

6”

8”

10”

12”

14”

16”

18”

20”

24”

B14B16B20

C20C23C25C27

D27D31D34D40

XF40XF46XF56

X862X864X867X872

X10H82X10H84X10H87X10H94X10H97

X12M102X12M106X12M112X12M120

A-P106A-P112A-P120A-P130

S112S120S130S134S137S140S152

U152U160U170

3V1603V1703V1803V192

3Y1923Y2003Y2103Y220

737679630

713651585434

647614496368

992736512

483397330257

368331274187143

332269209134

468411332220

586529424377343332218

262237211

254225204177

464459394316

648597554

628573514382

569541437324

960705483

425349290226

324292241164126

293237184118

412362292193

516465373332302292192

260237211

254225204177

453448394316

593546506

574524470349

520494399296

917661453

388319265207

296267220150115

267216168108

376331267177

472425341303276267175

260237211

254225204177

409402367316

546503467

528483433322

479455368273

891637417

358294244191

273246203138106

24619915599

347305246163

434392315279254246161

251228205

246218196171

374367336306

513472438

496453407302

450428345256

828578397

336276229179

256231191130100

23118714593

326286231153

408368295263239231152

237215193

231204183161

354347312284

487448416

471430386287

427406328243

796554372

319262218170

24321918112395

21917713889

309271219145

387349280249227219144

223204181

218193180151

338329296270

481443411

466425382284

422401324240

768511335

315259215168

24021617912294

21717613688

305268217143

383345277246224217142

218200178

214189169148

331324291265

4” G-LOK®

CLAMP SET

SEALRINGSIZE 40

4”G-LOK®

HUB

Page 20: Galperti Clamp Connector

C M G N

18 3

Pressure Temperature Rating – Superduplex¨

Designed To Withstands Severe Conditions¨

STANDARD SERIESClamp material-Low Alloy Steel

The G-LOK® connector has been designed formany different critical service applications. Manyof these involve rapid cyclic operating conditionsover extended periods of time, with various com-binations of both pressure and temperature. Toensure compliance with the applicable design co-des with regard to these severe thermal and pres-sure excursions, G-LOK® utilizes state of the artengineering technology.Finite Element Analysis (FEA) allows the detailedexamination of all connector elements under the-se varying conditions.

G-LOK® CONNECTORS VS ANSI FLANGE

G-LOK® Finite Element Model

The G-LOK® clamp connection has a significantlysmaller diameter and a shorter lenght than that of acomparably rated ANSI or API ring joint flange con-nection, reducing weight and space required formake-up.The G-LOK® is especially well suited to systems thatrequire close piping and hookup arrangements. Asthere are no bolt holes to align, the G-LOK® clampmay be rotated to conveniently locate the bolts foreasy make-up and break-down of the connections.

SIZE

WEIGHTS GIVEN ARE APPROXIMATE

G-LOK® CONNECTORS VS FLANGES

2”3”4”6”8”

10”12”16”

9182462100190280560

275074

175300485730

1.370

G-LOK®

ASSEMBLY

WEIGHT KG.

ANSI FLANGES1500#

ASSEMBLY

WEIGHT KG.

NOM.SIZE

G-LOK®

SIZE 20°C 50°C 100°C 150°C 200°C

PRESSURE RATING (BAR)

1”

1,5”

2”

3”

4”

5”

6”

8”

10”

12”

1GR41GR51GR7

1GR11

1,5GR111,5GR14

2GR142GR162GR20

3GR203GR233GR253GR273GR31

4GR254GR274GR314GR344GR40

5GR315GR345GR405GR465GR52

6GR406GR466GR526GR62

8GR628GR728GR768GR82

10H8410H8710H94

12M10212M11212M120

166915511172685

1456934

12891025747

13781214901548275

13411114959630361

13191037840623360

1108822663421

661472415299

534515433

573344251

161214991132662

1407903

1245991722

13321173871529266

12961077927609349

13191037840623356

1108822663407

661472415288

508493398

551335245

155614461092639

1357871

1202956696

12851131840511257

12501039894587336

13121037840622244

1108822663392

661472414278

494460355

516315213

151114041061621

1318846

1167928676

12481099816496249

12141009868570327

12751037840610334

1108822663381

661472403270

485428331

498299208

148913841045611

1299834

1150915666

12291083804489245

1197994856562322

12561037840601329

1108822663375

661472397266

459405306

476283189

(C) G-LOK® HUBTYPE 12M102

(12" SCH. 160)G-LOK® CLAMP

TYPE X12MG-LOK® SEAL RING

TYPE 102ASSEMBLY WEIGHT

KG 345

(A) “GC” COMPACTFLANGE 12"2500 SCH. 160ASSEMBLY WEIGHTKG. 469

(B) WELDING NECKFLANGE 12" 2500 RTJSCH. 160ANSI B 16.5ASSEMBLY WEIGHT1710 KG

Page 21: Galperti Clamp Connector

C M G N

2 19

G-LOK® – The Advantages¨

Pressure Temperature Rating – Superduplex¨

The G-LOK® Connector is designed to offer thestrength and sealing integrity of a welded joint andthe versatility of a mechanical joint. It serves the sa-me purpose as a bolted flange assembly, with theadvantages of being more easily installed, lighterand smaller.A self-energized, pressure activated connection, theG-LOK®, clamp-type connector consists of four basicelements:

• (1) Hub

• (2) Clamps

• (3) Seal

• (4) Bolting

The hubs are usually welded to pipe; the seal is in-stalled and the bolting is tightened on the clamps toform a pipe connector that provides superiorstrength and leak integrity. The G-LOK® is commonlyused in service with temperatures of up to 650°C.The G-LOK® also excels in high pressure applica-tions, with working pressure of 30,000 psi not un-common.The G-LOK® clamp has been designed for the opti-mum strenght of a bolted connection. Since the boltsare at right angles to the axis of the pipe, they donot receive direct bending and pressure loads. Thissystem of clamping provides greater strength thanANSI or API flanges at a fraction of the seal sizeand weight as a result of this design. Less boltingtorque is required for proper seating of the seal.The design of the connector provides considerablestored energy in the system when compared withANSI or API flanges. This stored energy works toprovide leak resistance during thermal cycling andmaintains proper bolt loading.When properly installed, the G-LOK® will usuallyprovide greater bending and torsional strength thanthe connecting pipe. The full face contact of the con-nector resists bending and ensures rigidity not provi-ded by other clamp-type connectors. The pressureand temperature limitations are determined only bythe materials of construction.

HOW THE G-LOK® CONNECTORS SEALS

The seal ring in the G-LOK® resembles a “T” in crosssection. The base of the “T” is the rib that is held byabutting hub faces as the connection is made up.The top of the “T” forms the lips that seal against theinner surfaces of the hubs.In the assembly of the connection, the clamps fit over

the two hubs, and as they draw the hubs togetherthe seal ring rib ensures proper seal alignment.As the hubs are drawn together by the clamp as-sembly, the seal ring lips deflect against the innersealing surfaces of the hubs. This deflection elastical-ly loads the lips of the seal ring against the innersealing surface of the hub, forming the self-energi-zed seal. Internal pressure reinforces this seal, so thesealing action of the G-LOK® is both self-energizedand pressure energized.

G-LOK® clamp connectors are interchangeable withother connectors designed and manufactured accor-ding to the same standard.

G-LOK® in FREE position

G-LOK® in MADE-UP position

HEAVY DUTY SERIESClamp material-Low Alloy Steel

NOM.SIZE

G-LOK®

SIZE 20°C 50°C 100°C 150°C 150°C

PRESSURE RATING (BAR)

2”

3”

4”

6”

8”

10”

12”

14”

16”

18”

20”

24”

B14B16B20

C20C23C25C27

D27D31D34D40

XF40XF46XF56

X862X864X867X872

X10H82X10H84X10H87X10H94X10H97

X12M102X12M106X12M112X12M120

A-P106A-P112A-P120A-P130

S112S120S130S134S137S140S152

U152U160U170

3V1603V1703V1803V192

3Y1923Y2003Y2103Y220

153214111309

148313541216903

13451210950765

15501150800

703616554501

666629569388298

549501434279

624548484414

889785672625592582453

462422374

476401362284

623607525429

148013631265

143313081175872

12991210950739

15001101755

703616554501

666629550375288

549501420270

624548484414

889785672625592582438

462422374

476401362284

623607525429

142813151220

138212621133842

12541191950713

14331033708

70361655

498

666629531362278

549501405260

624548484414

889785672625592582422

462422374

476401362284

623607525493

138712781185

134312261101818

12181157934693

1393995651

703616554484

666624515352270

549501393253

624548484414

889785672525592582410

462422374

476401362284

623607525429

136712591168

132312081084806

12001140920683

1294903620

703616554477

666615508346266

549498387249

624548484407

889785672625592582404

462422374

476401362284

623607525429

Page 22: Galperti Clamp Connector

C M G N

Quality Type Approval & Testing

20 1

¨

Contents¨

QUALITY ASSURANCE

GALPERTI ENGINEERING hasbeen successfully audited andawarded the prestigious BS ENISO 9001 accreditation for itsthorough Quality AssuranceProgramme.This ensures strict compliancewith all relevant RegulatorySpecifications and codesincluding ANSI, API, ASME, BS,NACE. Material specifications toASTM and BS are adhered to,and full traceability of allcomponents is assured.Using the latest CNC machinetools in a modern factoryenvironment, manufacture iscarried out inaccordance with all currentspecification.G-LOK® connectors, in additionto meeting the current IndustryStandards for Interchangeability,can be supplied in accordancewith various designcodes/regulations including:

◆ ANSI/ASME

◆ API

◆ BS 5500

◆ UK Offshore Regulations

◆ Customers’ special requirements

◆ Country Codes

TYPE APPROVAL TESTING

The G-LOK® range of connectorshas been subjected to extensivestrain gauge and destructivetesting and has been awardedfull design approval by Lloyd’sRegister.

EXTERNAL LOADING

TensionThe G-LOK® connector is capableof withstanding higher tensileloads than a conventional ANSIflange. Tensile loads can causeconventional flange faces toseparate, providing a leak pathacross the flange face. With thepressure energised bore seal, thisdoes not occur and the G-LOK®

connector will remain leak tight.

BendingG-LOK® connectors are designedto withstand severe bendingloads without leaking orloosening.Independent tests evaluatingG-LOK® clamp connectors haveshown that even under severepressure and bending conditions,the connector does not leak andthe bolting remains tight.Increasing the bendingmovement to ultimate failure ofthe pipe has not resulted inconnector leakage.

CompressionAs in most cases thebearing area of the sealring ribis larger than the cross section ofthe adjoining pipe it becomesimpossible to over compress thesealring within the G-LOK®

connector. For normal pipingapplications, the compressivelimits are governed by otherfactors such as piping flexibilityanalysis or anchor loads and inpractice the G-LOK® connectorwill always perform under theapplied compressive loading.

Thermal ShockG-LOK® connectors have beenapplied to both Cryogenic andhigh temperature service whichare subject to thermal transientconditions.For very severe thermal shock(i.e. quenching), the connectorscan be provided with thermalshrouds to protect the sealringlips from the full effects of thethermal shock.

G-LOK® ADVANTAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

G-LOK® SEVERE CONDITIONS APPLICATION . . . . . . . . . . . . . . . . . . . . . . 3

G-LOK® SIZING SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

G-LOK® ASSEMBLY AND DIS-ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . 5

G-LOK® BUTTWELD HUBS / BLIND HUBS . . . . . . . . . . . . . . . . . . . . . . . . 6-7

G-LOK® HEAVY DUTY BUTTWELD HUBS / BLIND HUBS . . . . . . . . . . . . . . 8-9

G-LOK® SEAL RINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

G-LOK® CLAMPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

G-LOK® OTHER CONFIGURATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13

G-LOK® CARBON STEEL PRESSURE TEMPERATURE RATING . . . . . . . . . 14-15

G-LOK® STAINLESS STEEL PRESSURE TEMPERATURE RATING . . . . . . . . 16-17

G-LOK® SUPERDUPLEX PRESSURE TEMPERATURE RATING . . . . . . . . . . 18-19

G-LOK® QUALITY TYPE APPROVAL AND TESTING . . . . . . . . . . . . . . . 20-21

Page 23: Galperti Clamp Connector

Quality Type Approval & Testing®

API FIRE TESTING

The need for correct analysis of product performance is a prerequisite when specifying pipe connectors.Having successfully completed strain gauge testing under full load conditions and fire testing to API 6FB parts1 and 2, the G-LOK® range of clamp connectors suits most applications.Independent testing and witnessing, resulting in Lloyds Register, Type Approval coupled with extensive Finite E-lement Analysis during the fire test programme, affords clients one of the most comprehensively tested clampconnector available.

I S O 9 0 0 1

LLOY

D’S

REG

ISTER QUALITYC

OM

PANY

N A T I O N A LA C C R E D I T A-

T I O NO F C E R T I F I- 6A – 0388 AD - Merkblatt WO/TRD 100.

TUV

Page 24: Galperti Clamp Connector

®

GALPERTI ENGINEERINGAND FLOW CONTROLArea Industriale22050 COLICO (LC) ITALYTel. 0341/930780 Fax0341/930777

CONTACT ADDRESS: