Goulds PUMPS

7/21/2019 Goulds PUMPS

http://slidepdf.com/reader/full/goulds-pumps-56da1fefdc652 1/10

BULLETIN 725.4October 2002

Goulds Model 3796 Self-Priming Process Pumps



Goulds Model 3796Self-Priming Process PumpsDesigned for Total Range ofIndustry Services■

Capacities to 1250 GPM (284 m3

/h)■Heads to 430 feet (131 m)

■ Temperatures to 500°F (260°C)

■ Pressures to 375 PSIG (2586 kPa)

■ Effective static lift to 20 feet (6 m)

Performance Featuresfor Self-Priming

ServicesExtended Pump Life

• Patented design

• One-piece casing with integral priming and air

• separation (no external priming chamber or air

• separator required)

• No suction check valve required

• Rapid priming time

• Positive retention of pumpage under siphon

• conditions

• Self-purge of vapors

Ease of Maintenance • Back pull-out design (one craft maintenance)

• Parts interchangeable with Goulds Model 3196

• External impeller adjustment

• Easy retrofit

Safety

• ANSI B15.1 coupling guard

• Ductile iron frame adapter

• Fully serrated flanges

ServicesIndustrial sump

Mine dewatering

Chemical transfer

Bilge water removal

Coal pile drainage

Tank car unloading

Filter systems

Petroleum transfer

Aircraft fueling

Column bottoms and reflux

© 1999 Goulds Pumps, Inc.

Model 3796 STX (1x11/2-6, 11/2x11/2-8)

Goulds Model 3796 process pump line isspecifically designed to provide superior

performance for self-priming services of theChemical Process Industries.

Model 3796 MTX (2x2-10, 3x3-10, 4x4-10, 3x3-13,

4x4-13, 6x6-13)



Model 3796 Self-Priming Process PumpsHeavy Duty Design Features for Wide Range of Process Services

MOUNTING FLANGESupports ANSI coupling guard or optional

C-face motor adapter.

STANDARD LABYRINTHOIL SEALS

Carbon-filled Teflon* for chemical

resistance. Prevent premature bearing

failure caused by lubricant contamination

and loss of oil.

CONTINUOUS HIGHPERFORMANCEOriginal high efficiency maintained by

simple external adjustment resulting in

long-term energy savings.

HEAVY DUTY SHAFTAND BEARINGSShaft designed for minimum

deflection—less than .002 in. (.05 mm)—at

seal faces. Bearings sized for 2-year

minimum and 10-year average life under

tough operating conditions.

ONE-INCH OIL SIGHT GLASSFor easy monitoring of actual oil level and

condition.

RIGID FRAME(AND CASING) FEET

Reduce effect of pipe loads on alignment.

SEALING FLEXIBILITY

Choice of BigBoreTM, TaperBoreTM or

standard bore chambers for maximum

sealing flexibility to meet service

conditions.

POSITIVE SEALING

Fully confined gasket at casing joint

protects alignment fit from liquid.

*E.I. DuPont reg. trademark

DUCTFRAME A

Material stren

carbon ste

COMPACT, OCASING

Eliminates need for sepa

chamber, air separat

Self-venting, centerlin

Back pull

SERRATED FFor positive sealing agai

Meets ANSI B16.5 re

Class 150 FF flange

optional c

FULLY OPEN IMAcknowledged best de

services—solids hand

material, corrosives, abra

pump-out vanes m

chamb

OPTIONAL CASINLUBRICATION FLEXIBILTYX-Series power ends pre-drilled for

choice of lubrication. Easy field

conversion from standard flood oil

to oil mist or grease lubrication.



Priming and Air Separation AccomplishedWithin CasingDual volute design primes suction with only aninitial charge of liquid in the casing. During primingcycle, the lower volute functions as an intake whileupper volute discharges liquid and entrained airinto separation chamber. Air is separated andexpelled through pump discharge while liquidrecirculates into lower volute. Once air iscompletely removed from suction and liquid fillsimpeller eye, pump is fully primed, and functions as

a conventional centrifugal pump with both volutesperforming as discharges.

The casing is designed so that an adequatevolume of liquid for repriming is always retained inpump even if liquid is allowed to drain back tosource of supply from discharge and suction.

PRIMING PUMPING

The one-piece casing is designed

with integral priming and air

separation chambers. Priming is

accomplished within the casing,

eliminating the need for auxiliary

priming systems.

Reliable Self-Priming OperationBefore any centrifugal pump will perform, it must first be primed; that is, air orgases expelled from the suction and impeller eye area, and replaced with liquid.This is no problem when the pump is submerged (submersible or vertical sumppumps) or when liquid supply is above the pump. However, when suctionpressure is negative, air must be evacuated to accomplish pump priming.

The 3796 is designed to insure that a sufficient quantity ofliquid to reprime is always retained in the priming

chamber...a compact, integral and completely functionalself-priming pump.

Model 3196

X-Series ChemicalProcess Pumps

Model NM 3196

FRP ProcessPumps

Model LF 3196

Low Flow ANSIProcess Pumps

Model CV 3196

Chemical VortexProcess Pumps

Model 3198

PFA Teflon*-LinedProcess Pumps

Model 3796

Self-PrimingProcess Pumps

Model 3996

In-Line ProcessPumps

InterchangeabilityGoulds X-Series Power Ends minimizeinventory, reduce downtime.

STX and MTX power ends fit 7 different pumps.STX MTX



EXTRA LARGE OIL SUMPLarge oil capacity provides optimum heat

transfer for cooler running bearings.

RIGIDFRAME FOOT

Reduces effect of pipe loads

on shaft alignment. Pump/driver

alignment is better maintained for

extended bearing and seal life.

Goulds X-Series power ends (STX, MTX, LTX ) are the result of users’requirement for longer pump life. Standard performance features extendpump life without compromis-ing Goulds remarkable interchangeability.Goulds backs the X-Series power ends with an unconditional guaranteeagainst workmanship and material for 3 years from date of manufacture.

LARGE OIL SIGHT GLASSAllows viewing condition and level of oil—critical

for bearing life. Frame pre-drilled for optional

bottle oiler.

CONDITION MONITORING SITESAllow easy and consistent monitoring of

temperature and vibration for preventive

maintenance. Optional installation of sensors.

*E.I. DuPont reg. trademark

CARBON-FILLED TEFLON*LABYRINTH OIL SEALSPrevent contamination of lubricant,

the primary cause of premature

bearing failure.

SHAFT/BEARINGSShaft designed for minimum deflection

for long seal and bearing life. Bearings

sized for optimum life.

STX/MTX . Double row

angular contact

thrust bearing

standard, duplex

bearings optional.

LTX . Oversize shaft

and duplex angular

contact thrust bearings

extend BHP limit to

200 HP (149 kW).

Sealing SolutionsGoulds engineered seal chambers are designedto accept a wide range of sealing arrangementsto meet specific user requirements. Your Gouldsrepresentative will gladly recommend the bestsealing solution for your service...some of whichare illustrated here.

SINGLE INSIDE SEAL(with BigBoreTM SealChamber)

• Non-corrosive tomoderate corrosiveliquids

• Moderate abrasives

• Liquids that have goodlubrication qualities

CONVENTIONAL DOUBLE SEAL(with BigBoreTM Seal Chamber)

• Liquids not compatiblewith single seal

• Toxic, hazardous,abrasive, corrosive

• When pump isoperating undercavitation or low flows

• Meet environmentalregulations

SINGLE CARTRIDGE SEAL(with TaperBoreTM PLUS Seal Chamber)

• Same applicationas conventionalsingle seal

• Ease ofmaintenance

• No seal settingproblems

DOUBLE CARTRIDGE SEAL(with BigBoreTM Seal Chamber)

• Same applicationsas conventional

double seal• Reduced

maintenancecosts

• No seal settingerrors

DOUBLE GAS BARRIER SEAL(with BigBoreTM Seal Chamber for Gas Seals)

• Toxic or hazardous liquids

• Meet environmentalregulations

• When use of sealpot or externalflush is not desirable

• When compatibleseal flush liquidnot available

Goulds X-Series Power EndsDesigned for Reliability, Extended Pump Life



Hydraulic Coverage Model 3796

0

150

125

100

75

50

25

m m

FT.

T O T A L H E A D — 3 5 0 0 R P M ( 6 0 H

z )

CAPACITY—3500 RPM (60 Hz)

T O T A L H E A D — 2 8 5 0 R P M ( 5 0 H

z )

CAPACITY—2850 RPM (50 Hz)0

0 200100 300 400 500

20 40 60 80 100m /h3

GPM

0 600500400300200100

0 14012010080604020

GPM

MTX

STX

0

100

300

200

100

75

50

25

00

500

400

300

200

100

FT.

m /h3

3500/2850 RPM

2x2-10 4x4-10

3x3-10

11/2x11/2-8

1x11/2-6

0

5

10

15

20

25

30

40

50

60m mFT.

T O T A L H E A

D — 1 7 5 0 R P M ( 6 0 H z )

CAPACITY—1750 RPM (60 Hz)

T O T A L H E A

D — 1 4 5 0 R P M ( 5 0 H z )

CAPACITY—1450 RPM (50 Hz)0

0 50 100 150 200 300 400 500 600 800 1000 1400

10 20 30 40 60 80 100 120 140 200 300

▼= Scale Change

m /h3

GPM

0 80070060050040030020015010050 1000 1400 1800

0 20 40 80 120 140 200 300

GPM

STX

MTX

0

10

20

30

40

50

60

70

90

110

13040

30

20

15

10

5

00

90

80

70

60

50

40

30

20

10

FT.

180

160

140

120

100

▼

▼

▼m /h3

1750/1450 RPM

3x3-13

2x2-10 3x3-10

4x4-10

6x6-134x4-13

11/2x11/2-8

1x11/2-6



Material

Item Ductile HastelloyNumber

Part NameIron

316SS CD4MCu Alloy 20B & C

Titanium

100 Casing Ductile Iron 316SS CD4MCu Alloy 20 Hastelloy Titanium

101 Impeller Ductile Iron 316SS CD4MCu Alloy 20 Hastelloy Titanium

105 Lantern Ring Glass-Filled Teflon*

106 Stuffing Box Packing Teflon* Impregnated Fibers

108 Frame Adapter*** Ductile Iron

112 Thrust Bearing Double Row Angular Contact**

122 Shaft—Less Sleeve (Optional) SAE4140 316SS Alloy 20 Hastelloy Titanium

122 Shaft—With Sleeve SAE4140 316SS

126 Shaft Sleeve 316SS Alloy 20 Hastelloy Titanium

136 Bearing Locknut and Lockwasher Steel

168 Radial Bearing Single Row Deep Groove

184 Stuffing Box Cover (Packed Box) Ductile Iron 316SS CD4MCu Alloy 20 Hastelloy Titanium

184M Seal Chamber (Mechanical Seal) Ductile Iron 316SS CD4MCu Alloy 20 Hastelloy Titanium

228 Bearing Frame Cast Iron (Ductile Iron for STX Group)

250 Gland 316SS CD4MCu Alloy 20 Hastelloy Titanium

262 Repeller/Sleeve (Dynamic Seal Option) CD4MCu Hastelloy Titanium

264 Gasket, Cover to Backplate (Dynamic Seal) Teflon*

265A Stud/Nut, Cover to Adapter 304SS

319 Oil Sight Glass Glass/Steel

332A Labyrinth Oil Seal (Outboard) Carbon-Filled Teflon* with Viton O-ring

333A Labyrinth Oil Seal (Inboard) Carbon-Filled Teflon* with Viton O-ring

351 Casing Gasket Aramid Fiber with EPDM Rubber

358A Casing Drain Plug (Optional) Steel 316SS CD4MCu Alloy 20 Hastelloy Titanium

360 Gasket, Frame-to-Adapter Manila Paper

360A Gasket, Bearing End Cover Vellumoid

370 Cap Screw, Adapter-to-Casing Steel 304SS

418 Jacking Bolt 304SS

444 Backplate (Dynamic Seal Option) Ductile Iron 316SS CD4MCu Alloy 20 Hastelloy Titanium

469B Dowel Pin Steel

496 O-ring, Bearing Housing Buna Rubber

496A O-ring, Impeller Glass-Filled Teflon*

Parts List and Materials of Construction

*E.I. DuPont reg. trademark **LTX Power End features Duplex Angular Contact * **Integral with STX frame

STX MTX LTX

Diameter at Impeller .75 (19) 1 (25) 1.25 (32)

Diameter in Stuffing Box/Seal Chamber

(Less Sleeve) 1.375 (35) 1.75 (45) 2.125 (54)

(With Sleeve) 1.125 (29) 1.5 (38) 1.875 (48)Shaft

Diameter Between Bearings 1.5 (38) 2.125 (54) 2.5 (64)

Diameter at Coupling .875 (22) 1.125 (29) 1.875 (48)

Overhang 6.125 (156) 8.375 (213) 8.375 (213)

Maximum Shaft Deflection 0.002 (0.05)

Sleeve O.D. thru Stuffing Box/Seal Chamber 1.375 (35) 1.75 (45) 2.125 (54)

Radial SKF 6207 SKF 6309 SKF 6311Thrust SKF 5306 A/C3 SKF 5309 A/C3 SKF 7310 BECBM

BearingsBearing Span 4.125 (105) 6.75 (171) 6.875 (164)

Average L'10 Bearing Life 87,600 hours

BigBore™Seal Chamber

Bore 2.875 (73) 3.5 (89) 3.875 (98)

Stuffing Box Bore 2 (51) 2.5 (64) 2.875 (73)

Power Limits HP (kW) per 100 RPM 1.1 (.82) 3.4 (2.6) 5.6 (4.2)

Maximum Oil/Grease Lubrication without Cooling 350°F (177°C)Liquid

Oil Lubrication with Finned Cooler 500°F (260°C)Temperature

Casing Corrosion Allowance .125 (3)

Construction Details All dimensions in inches and (mm).



Sectional View Model 3796

496

112

136

122

332A

319

228

469B

168 333A 108 418

100

101

358A

250 184M 351

STX LTX

MTX



Dimensions Model 3796All dimensions in inches and (mm). Not to be used for construction.

SUCTION DISCHARGEA B

E

D

X

33 / 4(95)

DIMENSIONS

Baseplate Mounting OptionsGoulds offers a complete range of mounting systems tomeet plant reliability requirements, and to make alignmentand maintenance easier.

CAMBER TOP CAST IRON

Rigid and corrosion resistant,it is preferred by many plants.

CHEMBASE PLUS™

Polymer concrete constructionprovides exceptional rigidity &corrosion resistance.ANSI 1991 dimensional.

FABRICATED STEEL

Economical baseplatethat meets ANSI/ASME B73.1M current edition dimensionalrequirements.

ENHANCED FEATUREFABRICATED STEEL

Upgraded ANSI baseplate designedto maximize pump operation life andease installation by meeting API-minded chemical pump userstoughest requirements.

Bare PumpGroup Pump Discharge Suction A B D E X Weight

Size Lbs. (kg)

STX 1x11 / 2-6 1 11 / 2

151 / 2 (394) 5 (127) 71 / 2 (191) 4 (102)71 / 4 (184)

170 (77)11 / 2x11 / 2-8 11 / 2 11 / 2 77 / 8 (200)

2x2-10 2 2 213 / 4 (552) 61 / 2 (165) 270 (123)

3x3-10 3 3 225 / 8 (575) 63 / 4 (171) 10 (254) 315 (143)

MTX 4x4-10 4 4 233 / 8 (594) 93 / 16 (233) 10 (254) 6 (152) 370 (168)

3x3-13 3 3 225 / 8 (575) 63 / 4 (171)111 / 2 (292)

400 (182)

4x4-13 4 4 233 / 8 (594) 93 / 16 (233) 470 (214)

6x6-13 6 6 151 / 4 (387) 10 (254) 14 (356) 8 (203) 14 (356) 690 (314)



Form No. B725-4 10 /02

© 2002 Goulds Pumps, Incorporated

A subsidiary of ITT Industries, Inc.

Visit our website at www.gouldspumps.com

Goulds PUMPS

Documents

Transcript of Goulds PUMPS