KLINGER®

KGSRubber-Metal-Gaskets – Safe sealing of gases and liquids

Rubber-metal-gaskets are usedwhere safe sealing of conventional

up to special industrial media such as gases and liquids are required

under usual installation conditionslike temperatures, pressures

and forces.KLINGER®KGS / KGS G gaskets are

suitable for all flange materials.

KLINGER –worldwide leader in gaskets

Media

Pressure

Flange

Screw/Assembly

Proces-sing

Tempe-rature

KLINGER®

KGS / KLINGER®

KGS G Rubber-Metal-Gaskets – Safe sealing of gases and liquids

Rubber-metal-gasketsare used where safe sealing ofconventional up to special in-dustrial media such as gases and liquids are required underusual installation conditions like temperatures, pressures and forces.

KLINGER®KGS / KGS G gaskets are suitable for all flange materials.

A flange connection has to be always treated as a coherent system, because the sealingfunctions is determined by the interaction of individual elementsincluding flanges, gaskets andscrews (clamping elements - VDI 2290).

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Fields of application

Safe sealing of water, gas, air,acids, alkalis and hydrocarbonswith low sealing forces at temperatures up to 200°C, depending on the elastomer type.

With the following median Watern Gasn Waste watern Chemicals

With the following flanges made ofn Steel/stainless steeln Cast ironn GRPn PP/ PVC/ PE

KLINGER®KGS G Above ground and undergroundPipelines in the gas and water sector.Simplest and safest installationas well as maximum tightness at very small or large surface pressures.

1

65

4

3

2

1

KLINGER®KGS Above-ground and undergroundpipelines in the gas and water area.For slightly damaged and not always correctly routed pipelines.

KLINGER®KGS / SFor enamelled flanges of pipes andapparatus. For rubber-coated flanges of pipes and apparatus.Pipeline construction in the gas andwater area.

KLINGER®KGS / TKSuitable for the plastic apparatusconstruction (due to the low sealingforces).

3

4

2 KLINGER®KGS-Flon

KLINGER®KGS / TK-FlonVariant for KGS and KGS / TK withPTFE-envelope. Use in chemistry and the food industry.

KLINGER®KNSKraftnebenschlußdichtungFor the pipeline and apparatus con-struction in the gas and water area.

A gasket with a compression stop isnecessary at large diameters tocover the enormous forces at the flange, resulting from the pipeelongations tensions and the highnumber of bolts.

6

7

5

On request, we are glad to provide gasket characteristics according to EN 13555 for flange calculation according to EN 1591- for NBR, EPDM and FKM.

KLINGER®

KGS / KLINGER®

KGS G Rubber-Metal-Gaskets according to DIN EN 1514-1, Shape IBC

Ordering example:KLINGER®KGS made of NBR acc. to DIN EN 1514-1, Shape IBC DN 100, PN 10-16

Elastomers in different qualities

Steel ring

KLINGER®KGS

Rubber gasket, lenticular shape,rounded edges.Steel ring, chemically treated, no possibility to separate the elastomers from the steel core.Suitable for flanges made ofmetal.

n Self-centering with the sameflange DN and PN

n appropriate tightening torques

n self-limiting compression surface

n rigid gasket, easy to install

n soft surface in order to sealslightly damaged flange surfaces

n blow-off proof

n Materials of KLINGER®KGS:NR, NBR, EPDM, CSM, FKM

n Dimensions according to EN 1514-1 depending on DN: PN 6 to PN 40DN 15 up to DN 2000

n For approvals see material table

Spear tip

Ordering example:KLINGER®KGS/S made of NBR acc. to DIN EN 1514-1, Shape IBC DN 100, PN 10-16

KLINGER®KGS / S

Rubber gasket, Lenticular shapeat the sealing body, with inte-grally molded spear tip at the inside diameter of the gasket,rounded edges. The spear tip provides highersafety at lowest contact pressures.Suitable for installation between flanges made of metaland plastic.

n Self-centering with the sameflange DN and PN

n Minimum tightening torques andsmaller than KGS (see diagram on the right)

n Materials of KLINGER®KGS / S:NBR, EPDM, FKM, EPDM fire resistant

n Dimensions according to EN 1514-1 depending on DN:PN 10 to PN 40DN 15 up to DN 1000

n For approvals see material table

Steel ring

n suitable for flanges made of plastics such as PE, PP, GRP,PVC

n Self-centering with the sameflange DN and SDR

n Reduced dead space

n Tight, also at low tighteningtorques

n Materials of KLINGER®KGS / TK:NBR, EPDM, FKM

n Dimensions according to thevalid European standards for plastic tubes made of PE, PP,PVC, PVDF and GRP (mainly SDR 11,17 and 33)

n For approvals see material table

Ordering example:KLINGER®KGS / TK made of EPDM DN100 / OD 110 SDR17105 x 162

KLINGER®KGS / TK

Rubber gasket, flat shape at thesealing body, with integrally molded spear tip at the insidediameter of the gasket, rectangular outside diameter.The spear tip provides higher safety at lowest contactpressures.

Rectan-gular outside diameter

KLINGER®

KGS / KLINGER®

KGS G Rubber-Metal-Gaskets according to DIN EN 1514-1, Shape IBC

Spear tip

Steel ring

KLINGER® KGS

CERTIFICATION

KLINGER® KGS G

TA-Luft (Clean Air Act) Blow-out proof

TA-Luft (Clean Air Act) Blow-out proof

The German institute TÜV SÜD performed tests of the gasket in the size DN 40 PN 40 at a pressure up to 100 barregarding the leakage, blow-out and ageing behaviour—the gasket passed with flying colours!

Manufacturer confirmed – TÜV-Quality approved

KLINGER®

KGS / KLINGER®

KGS G Rubber-Steel-Gaskets—the new generation

KLINGER®KGS G

Vulcanized rubber seal, spear shape in sectional view, characterized by an active sealing ring segment and subsequent static reservoir.Surface treated, vulcanized andcentered steel ring for permanentstabilization.

Ordering example:KLINGER®KGS G made of NBRaccording to DIN EN 1514-1 Form IBC DN 100, PN 10-16

n Stable centering of the steel reinforcement in the sealing ringfor a homogeneous force distribution and sealing effect in the flange connection

n High load-bearing capacity of the bond between steel ringand rubber

n Safe sealing possible even at the lowest surface pressures

n Very high static loads such aspipe and bolt forces can be absorbed

n No intrusion into the open pipediameter (DN)

n No extrusion into the centeringarea (IBC)

n Highly efficient material usageleads to lower weight (easier handling and lower transport costs)

n Compensation of defects andmisalignments of the flange surface possible

n Registered for patent approval

The advantages of the new generation

“The better is the enemy of thegood” said Voltaire. This is the casewith the improvement of the well-known KLINGER®KGS rubber-steelgasket.

By optimising several parts of thissealing concept the performancerange could be dramatically extended.

The familiar high quality rubber typesused by KLINGER® along with thehigh-strength rubber-metal bond,the optimised cross-sectional profileand the particular ratio of rubber and steel along the flange result in a rubber-steel gasket which can absorb significantly higher flange forces than previously known.

In a first for a rubber-steel gasket an exact centering of the steel ring was achieved during the moldingprocess of the gasket.

Therefore the leverage forces arespread homogeneously duringflange mounting and the force application is symmetric. The qualityfactor of the assembly process isclearly higher than for traditionalrubber-steel gaskets (see diagrambelow).

The geometry is chosen so that already at lowest gasket loads safesealing occurs. On the other handthe gasket can absorb extremelyhigh static loads due to short com-pensation movements of the rubber.This means that the flange connec-tion will become significantly saferat higher bolt and pipe forces.

Special reservoir areas have the effect that even at the highest possible compression no intrusionof the rubber into the internal tubediameter or extrusion into the outercentering area will occur.

FACTOR OF MOUNTING QUALITY Q:

To evaluate the characteristics of thenew development KGS G regarding assembly, the behaviour ofgasket assembly in comparison tothe standard version KGS has beenchecked by using the test standFM20 of the company GAIST.

To obtain a quick evaluation of theassembly quality with the test standthe Q-factor is used. It is the productof bolt force target divided by the ef-fective bolt force, difference of the mi-nimum and maximum forces of theindividual bolts and the standard de-viation to bolt force target.

KGS G

KGS Standard

0

10

20

30

40

50

60

70

80

1 2 3 4 5

Q-v

alue

in %

Bolting cycles

Comparison Q-Factor:

>> The quality gain after five bolting cycles can be clearly recognised in the diagram

KLINGER®

KGS / KLINGER®

KGS G Materials of rubber-metal-gaskets

Gas Media containing hydrocarbonWaste waterWater

Black

from -15°C to +100°C

DVGW Certificate acc. to EN 682GBL EN 681-1 WG Class 70 EN 682 GBL Class 70 TA-Luft (German Clean Air Act)

Applications of NBR vulcanized materials resultfrom the listed characteristics,such as resistance against aliphatic carbohydrates, mineraloils, greases fuels.

WaterCircuit waterDiluted alkalis up to max. 50% and max. 80°C

Black

approx. +80°C, short-term up to +90°C

EN 681 -1 WC Class 70

NR vulcanized materials can be used where noncritical media have to be sealed. Higher temperatures than 90°Chave to be avoided.

Field of application

Colour

Temperature

Certificates

Applications

Materials NR NBR

Drinking waterWaste waterProcess water, on consultation

Black

from -40°C to +110°C,short-term up to +130°C

EN 681 -1 WAL/WCL Class 70Elastomer Guideline (new KTW)DVGW W270ACS, WRAS (BS6920)FDA CertificateTA-Luft (German Clean Air Act)

Applications of EPDM vulcanized materials mainly result from the good resistance to chemicals. Furthermore, the EPDM qualityhas a good resistance againstozone and aging.

Application in case of alkalis and acids in the chemicalindustry

Black

from -10°C to +80°C

TA-Luft (German Clean Air Act)

Applications of CSM vulcanized materials can be found in the chemical industry,in chemical cleaning etc.

Application in case of higher temperatures (Viton is thebrand name of DuPont® for FKM)in the chemical industry

Brown

from -20°C to +200°C

TA-Luft (German Clean Air Act)

Due to the good resistance against acids and alkalis, the main use is in the area of chemistry and their users.

Function and durabilityThe function of KLINGER Gasketsmainly depends on the storage andinstallation conditions on which, we as a supplier, do not have any influence. That is why we only ensure perfectcondition of the material.

Please also observe our instal-lation instructions on this. In case there are special approval regulations, they have to be ob-served.

As for other media or applicationconditions, we would be glad to provide you with further information.

EPDM CSM FKM

KLINGER®

KGS / KLINGER®

KGS G Product range of Rubber-Metal-Gaskets

18222734434961727789115141169220273324356407458508610712813915101611201220142015201620182020202220242026202820302032203420362038204020

DN

10152025324050606580100125150200250300350400450500600700800900100011001200140015001600180020002200240026002800300032003400360038004000

Dimensions acc. to the Standard in mm

Available dimensions on request, or please see our actual price list.

Inside diameter

Gaskets for flanges with a smoothsealing surface, Shape A - EN 1092, and with sealing strip, Shape B - EN 1092 acc. to DIN EN 1514-1, Shape IBC (Inner Bolt Circle)

KLINGER® KGS G

KLINGER®KGS

KLINGER®KGS / S

KLINGER®KGS / TK

KLINGER®KGS-Flon

KLINGER®KGS / TK-Flon

KLINGER®KNSCompression stop gasket

40

465161718292107117127142168194224290352417474546571628747–––––––––––––––––––––

63

5661728288103113123138148174210247309364424486543––––––––––––––––––––––––

10

46516171829210711712714216219221827332837843848953959469581091710171124123113411548165817721972218223842592279430143228–––––

6

394454647686961061161321521822072623173734234735285786797848909901090–13071524–17241931213823482558276229723172338235923804––

1 / 2.5

394454647686961061161321521822072623173734234735285786797848909901090–12901490–1700190021002307250727072924312433243524373439314131

25

465161718292107117127142168194224284340400457514564624731833942104211541251136415781688179820002230––––––––––

16

465161718292107117127142162192218273329384444495555617734804911101111281228134215421654176419642168––––––––––

Outside diameter for PN

KLINGER®

KGS / KLINGER®

KGS G

ClorotrifluorideCondensation waterCopper acetateCopper sulphateCreosoteCresolCrude oilCyclohexanolDecahydronaphthalenDibenzyl etherDibutyl phthalateDiesel oilDimethyl formamideDiphylEthaneEthanolEthyl acetateEthyl alcoholEthyl chlorideEthyl etherEthylendiamineEthyleneEthylene chlorideEthylene glycolFluorine dioxideFluorine gaseousFluorine liquid (dry)Fluorosilicic acidFormaldehydeFormamideFormic acid 10%Freon 12Freon 22Fuel oil (crude oil basis)Generator gasGlacial acetio acidGlycerinHeating oilHeptaneHydraulic oil (mineral-based)Hydraulic oil (phosphat ester)Hydrazine hydrateHydrochloric acid (10%) Hydrochloric acid (37%) Hydrofluorid acidHydrofluosilic acidHydrogen Hydrogen chloride (dry)Hydrogen peroxide 3%Hydrogen peroxide 90%Hydrogen sulfideIsooctaneIsopropyl alcoholKeroseneLactic acidLead acetate

FKMCSMEPDMNBRNRMedium

Media resistance of rubber-metal-gaskets

AcetaldehydeAcetamideAcetic acidAcetic acid esterAcetoneAcetyleneAdipic acidAirAlumAluminium acetateAluminium chlorateAluminium chlorideAmmoniaAmmonium carbonateAmmonium chlorideAmmonium diphosphateAmmonium hydroxideAmyl acetateAnilineAnon cyclohexanoneArcton 12Arcton 22AsphaltAviation fuelBarium chlorideBenzeneBenzoic acidBlast furnace gasBleaching solutionBoiler feed waterBoraxBoric acidBrine ButaneButanolButanoneButyl acetateButylamineButyle alcoholButyric acidCaesium meltCalcium chlorideCalcium hydroxideCalcium hypochloritCalcium sulphateCarbolic acidCarbon dioxideCarbon disulphideCarbon tetrachloridCastor oilChlorine waterChlorine, dryChlorine, moistChloroformChromic acidCitric acid

FKMCSMEPDMNBRNRMedium

Lead arsenateLinseed oilLithium meltMagnesium sulphateMalic acidMEK butanoneMethaneMethyl alcoholMethyl chlorideMethylene chlorideMineral oilMonochlorethaneNaphthaNatural gasNitric acidNitrobenzeneNitrogen Octane (n)OilOleanolic AcidOleic acidOxalic acidOxygen, gaseous, coldPalmitic acidPatable waterPentanePerchlorethylenePetroleumPetroleum benzinPetrol etherPhenolPhosphoric acidPolychl.biphenyls.Potassium chromium sulphatePotassium acetatePotassium carbonatePotassium chloratePotassium chloridePotassium cyanidePotassium dichrom.Potassium hydroxidePotassium hypochloritePotassium iodidePotassium meltPotassium nitratePotassium nitritePotassium permanganatePropanePydraul CPydraul EPyridineRape seed oilRubidium meltSalicylic acidSea waterSilicon oil

Medium

Skydrol 500, 7000Soap, solutionSodaSodium aluminateSodium bicarbonateSodium bisulphiteSodium chlorideSodium cyanideSodium hydroxideSodium meltSodium silicateSodium sulfideSodium sulphateSpiritStarch Steam (max. 150 °C)Stearic acid 100°CSugar Sulphur dioxideSulphuric acidSulphurous acidTable saltTannic acidTannin Tar Tartaric acid Tetrachloroethane Tetrahydronaphthale Toluene Town gas (benzene free)Transformer oil Trichloroethylene Triethanolamine Turpentine UreaVinyl acetate Water 100°C Water flask Water vapour (max. 150°C) White spirit Xylene

FKMCSMEPDMNBRNRMedium

Subject to technical changes.Status: May 2015

Not recommendedConditionally recommendedResistant

It is not possible to select the right sealing material by justusing this media resistance table!

Please use the KLINGERdocumentation for making a safe decision.

FKMCSMEPDMNBRNR

KLINGER®

KGS / KLINGER®

KGS G Installation instructions for rubber-metal-gasketsThe following instructions have to be observed so that a reliablesealing connection can be ensured.

1. Gasket selectionThe suitable material quality can be selected from the KLINGER®

information sheet—above all, fromthe resistance chart.

2. FlangesFlanges should be parallel, metallic,clean and dry, the gasket has to bemounted centrically.Please ensure the correct gasket dimensions. The gasket should never tower intothe throughhole (media flow)!

The outer diameter of the KLINGER®KGS / KGS G gasket isadapted to the bolt circle of theflange. Therefore safe centering at thescrews is ensured.

3. InstallationThe installation of the gasketsshould be carried out without using any grease or oil containingseparating /sealing agents or similar,because they have a negative influence on the safety of the wholeflange connection.

4. ScrewsWhen installing the screws, theyhave to be tightened evenly in two to three steps crosswise.The screwsshould be lubricated. Pay attentionto the tightening torques.

5. Retightening“Retightening” is not required ifthese instructions are followed.

6. Multiple useFor reasons of safety, the multipleuse of gaskets is generally not recommended.

On request, please make use of advice of the KLINGER GmbH!

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KLINGER offers you excellent sealing products for all fields of applications

KLINGER®KGS G KLINGER®KGS/TK

KLINGER®KGS-Flon KLINGER®MK KLINGER®KGS/VD KLINGER®KNS

KLINGER®KGS

KLINGER GmbHRich.-Klinger-Straße 37 D-65510 IdsteinTel (06126) 4016-0Fax (06126) 4016-11/ -22e-mail: mail@klinger.dehttp://www.klinger-elastomere.de

Certified according to DIN EN ISO 9001:2008

Subject to technical changes.No responsibility is accepted for the accuracy of this information.Status: May 2018