HydraulicTriplexPumps

At theHeart ofIndustry

Kobe Triplex Pumps are extremely dependable, heavy-duty pumps designed to serve as high pressure sourcesof hydraulic power for many types of hydraulic systems.They are particularly adapted for severe service involv-ing frequent hydraulic shocks in the system, hightemperatures, and a variety of hydraulic fluids. They areplunger type pumps for pressures up to 30,000 psi andfor displacements up to 200 gpm.

There are three basic sizes (Size 2, Size 3 and Size 4)with several modifications available for each. All KobeTriplex Pumps include vertical design, automotive typecrankcase, spring-loaded ball type valves with replace-able seats or disc-type valves, a built-in lubricating oilpump for dual pressure and splash lubrication, anoptional scavenging pump to return plunger leakage tothe system, and built-in reduction gears. Units areavailable with integral motor drive or with external driveshaft for separate coupling drive.

Chrome-plated steel plungers, lap fitted to linerscentrifugally cast of high-grade alloy iron, are availablewith a variety of cylinder blocks to accommodatepressures above 5,000 psi. Packing is available for otherapplications where needed. Plungers and liners areinterchangeable, as assemblies, to meet a wide rangeof pressure and volume requirements. The Kobe Triplexis a complete, self-contained unit and the most com-pact high pressure triplex pump on the market today.

“KOBE TRIPLEX PUMPSreally stand up under pressure”

Easily installed and maintainedInstalling a Kobe Pump is a breeze. There are no align-ment problems. No special mounting base is necessary– four hold-down bolts are sufficient. Compactnesssaves valuable floor space. One man can easily servicethe unit and replacements are no problem. The tallspacer block provides large, unobstructed hand-holeopenings. Plungers and liners may be changed quicklyand easily.

Maximum safetyThe Kobe Triplex has no exposed moving parts, nogears, plungers, or tie-rods requiring screens or guardrails. Most units have a built-in relief valve to preventover-pressuring the system.

Integral electric drive is optionalKobe Triplex Pumps are available with an integral motordrive, or with a stub shaft for separate drive. Standardmotors are 230/460 volt, three phase, induction type,operating at 1800 rpm. Variations are available uponrequest.

Horizontal mounting availableThe Kobe Triplex is a vertical design but for specialapplications is available in a horizontal mountedposition.

SUMMARY OF APPLICABILITY

SERVICETo To To To

5,000 10,000 20,000 30,000psi psi psi psi

Any Hydraulic Fluid X X X X

Chemically Active Fluids

Water and Soluble Oil

Straight Water

Hydraulic Fluids – Temperatures (to + 1000°F)

Liquid Gases

Possible Possible

Possible

Possible

X X X X

X X X

X X

X X

VALVES – ball type withstainless steel followers andsprings. Hardened andground stainless steel seats,seated in a taper, have insidethreads for easy removal.

INTEGRAL ELECTRICMOTOR – is optional.Motors are 230/460 volt,60 Hz, induction type.

LUBRICATION – built-in lubeoil pump supplies oil underpressure to crossheadguides and connecting rodbushing. Excess oil isdelivered to the reductiongears. Splash lubrication iswithin the crankcase.

INTEGRALREDUCTION GEARS –precision cut andhardened; providedouble reduction.

SCAVENGER PUMP(optional) – disposesof plunger drippagein the spacer blockthrough an externaltube connected tothe scavenger pump.

PLUNGERS AND LINERS –metal to metal, lapped fit –no packing required. Packedplunger and liners are available forfluids being pumped at pressuresbelow 5,000 psi. Liners aresecured in the cylinder block by a4-bolt flange, and are quickly andeasily removed. Plungers are free-floating in the plunger connector.A wide range of pressures andvolumes can be achieved bychanging plunger and liner sizes.

CYLINDER BLOCK – machinedfrom a heavy one-piece steelforging. Standard blocks arerated to 5,000 psi; other blocksfor Size 3 Units to 20,000 psi,and Size 2 Units to 20,000 psi.

SPACER BLOCK –Tall and unobstructed; easyaccess to plungers and liners.Design minimizes heat transferfrom cylinder block to crankcasein high temperature applications.Fluid is completely enclosedwithin the spacer blockpreventing leakage beyondthe pump.

SIZE 2Triplex Pump

The Size 2 Triplex Pump isused throughout steel rollingmills for high pressurebearing lubrication andgeneral hydraulics.

The 5,000 psi cylinder block in the standard Size 2product line accommodates interchangeableplungers and liners of nine different sizes. The20,000 psi block handles six different plunger andliner sizes and is limited to lubricating fluid serviceonly. The 30,000 psi version has three valve

cylinders (rather thanthe forged cylinderblock) and has foursizes of interchange-able plungers andliners. Inlet and outletconnections are at thesame end of thecylinder block.Integral motor typesavailable are drip-proof, TEFC, orexplosion-proof, andare 230/460 volts, 3phase, 60 Hz, 1800RPM. Speed reductiongear ratios availableare 3.986 or 5.204.

The 5,000 psiversion of this unitcan be obtained withmodifications whichmake it capable ofhandling straightwater, high tempera-ture fluids, or otherspecial services.

The displacementfigures on the nextpage are in GPM andthe pressures in psi.

*Inlet and discharge connections will vary in size and willbe determined by pressure rating and fluid end design.Dimensions for reference only – actual dimensions may vary.

SIZE 2 RATINGSMaximum Power Output - 20 HPMaximum Pressure - 5,000 psi, 20,000 psi or 30,000 psiMaximum Speed - 450 RPMMaximum Volume - 21 GPM

Size 2 Triplex with integralelectric motor

20 H.P.For pressures up to 30,000 psi

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31 /61

20.2 89.6 096,3 90.9 096,3

7/8

43.2 01.8 081,3 5.01 081,3

51 /61

96.2 03.9 077,2 1.21 077,2

1 60.3 85.01 034,2 8.31 034,2

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11/4

87.4 45.61 065,1 5.12 065,1

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67. 46.2 047,9 44.3 047,9

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95. 20.2 027,21 46.2 027,21

Displacements are based on 100% volumetric efficiency.Stroke 3 inches

The Standard Size 3 Triplex has a 5,000 psi cylinderblock which accommodates interchangeableplungers and liners of nine different sizes. The highvolume version has a maximum pressure rating of2,000 psi and six different sizes of plungers and liners.The 5,000 psi version of this unit can be obtainedwith modifications which make it capable of handling

straight water, hightemperature fluids, orother special services.For 10,000 psi duty,a block is availableto accommodatefour sizes ofinterchangeableplungers and liners.The 30,000 psi unithas three sizes ofplunger and linerassemblies.

For separate driveunits, reductiongear ratios of 3.079,

3.579, 4.330, 4.864, 5.941 and 8.815 are optional atno extra cost. The integral drive units are available asdrip-proof, TEFC, or explosion-proof enclosures, andare 1800 RPM, 230/460 volt, 3 phase, 60 hertz.

The table on the next page shows the pressure /displacement relationship provided by these units.Displacements are in GPM, pressures are in psi.

*Inlet and discharge connections will vary in size and willbe determined by pressure rating and fluid end design.Dimensions for reference only – actual dimensions may vary.

SIZE 3Triplex Pump

SIZE 3 RATINGSMaximum Power Output - 100 HPMaximum Pressure - 2,000 psi to 30,000 psiMaximum Speed - 450 RPMMaximum Volume - 106 GPM(Shown above 100 HP 5,000 and 10,000 PSI Models)

High-pressure, high-temperatureaircraft test stand installation.

Size 3 Triplex for methanol pumping on offshoredrilling rigs at 10,000 psi. and higher.

100 H.P.For pressures up to 30,000 psi

Displacements are based on 100% volumetric efficiency.

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1 80.4 63.8 000,5 4.21 000,5 1.51 000,5 0.71 000,5

1 1/8

61.5 6.01 000,5 6.51 000,5 1.91 000,5 4.12 000,5

1 1/4

83.6 1.31 000,5 3.91 000,5 6.32 000,5 6.62 000,5

1 3/8

27.7 8.51 000,5 4.32 000,5 6.82 000,5 2.23 007,4

1 1/2

81.9 8.81 002,4 8.72 002,4 0.43 002,4 2.83 009,3

1 5/8

8.01 1.22 006,3 6.23 006,3 9.93 006,3 9.44 003,3

1 3/4

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06.1 72.3 000,01 38.4 000,01 98.5 000,01 26.6 000,01

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03.2 17.4 000,01 69.6 000,01 05.8 000,01 85.9 000,01

7/8

21.3 04.6 000,01 64.9 000,01 5.11 000,01 0.31 000,01

1 80.4 63.8 007,9 4.21 007,9 15.1 003,9 0.71 009,8

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92.1 56.2 000,02 09.3 000,02 87.4 000,02 73.5 000,02

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06.1 72.3 002,42 38.4 005,32 09.5 000,32 36.6 002,22

SIZE 3

Cryogenic

6,00010.6Liquid Nitrogen 6,00015.6

10,0008.36Liquid Nitrogen 10,00012.4

10,0008.36Liquid Hydrogen 10,00012.4

SIZE 4Triplex Pump

The Size 4 Triplex has a5,000 psi cylinder blockwith eight sizes ofplungers and liners. The10,000 psi version hasthree valve cylinders(rather than the forgedcylinder block) and hasthree sizes of plungersand liners. The 30,000 psiunit, also with threecylinders, has four sizesof plungers.

Size 4 Triplexes areavailable for separatedrive either directlycoupled to theprime mover orbelt driven.

For these units, single reduction gearratios available are 2.607, 3.407, 3.958,4.318 or 4.850.

For integral motor driven units, the motor isflange mounted and may be either drip-proof,totally enclosed, or explosion-proof type. Standardmotors are 1800 RPM, 460 volt, 3 phase, 60 Hz.

Optional Size 4units are available tohandle fluid tempera-tures to 650°F.

The selection tableon the next pageindicates displace-ments in GPM of thevarious sizes ofplungers and liners.Pressure ratings areshown in psi.

*Inlet and discharge connections will vary in size and willbe determined by pressure rating and fluid end design.Dimensions for reference only – actual dimensions may vary.

SIZE 43 cylinder shown withintegral electric motor.Separate drive available.

30,000 psi design pumpingstraight water @ 13,000 psifor high pressure jet cutting.

5,000 psi design pumping waterand soluble oil for deburringmachined metal parts.

200 H.P.For pressures up to 30,000 psi

Displacements are based on 100% volumetric efficiency.Stroke 5 inches

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1 7/8

9.71 5.66 004,4 5.18 008,3

2 4.02 7.57 009,3 8.29 023,3

2 1/8

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SIZE 4

FLUID END DESIGNS ...

This basic design is utilized to 10,000 psiin most applications. Valving is springloaded ball-type and seats are taperedinserts. Plunger and liner design is metal-to-metal with a close clearance to providedynamic seal. For fluids near ambienttemperature, an “O” ring is utilized as asecondary seal. Cylinder block typicallyis alloy steel forging.

STANDARD• Light Hydrocarbons• High Temperatures• Water with Oil• Oil

WATER• Semi-corrosive Fluids• Potable Water• Brackish Water• Process Fluids

This design is utilized to 5,000 psi inmost applications. For higher pressures,the design is similar to the 30,000 psiversion. Stainless steel valving is springloaded disc-type and seats are taperedinserts. Plunger and liner assemblies areself-adjusting for packing wear. Plungerand liner assemblies are easily installedand removed so that re-packing may bedone on a bench. Cylinder block isalloy steel for most applications.

Shown here are some of the fluid end designs available for a wide range of services offeredin the Kobe triplex pumps. All are characterized by unique features and all offer exceptionaldependability and simplicity of maintenance.

CRYOGENIC• Liquid Nitrogen• Liquid Ethylene• Liquid Hydrogen• Liquid Carbon Dioxide

30,000 PSI• Oils• Water with Oil• Light Hydrocarbon• Water (to 15,000 psi)

This design is utilized for most cryo-genic fluids in pressures to 6,000 psi.For higher pressures, the design issimilar to the 30,000 psi version.Jacketed stainless steel cylinder blockprovides a means of immersing thefluid end in the fluid being pumped.Stainless valving is spring loaded disc-type and seats are tapered inserts. Inthe plunger and liner assembly there area series of sealing elements consistingof Teflon rings with stainless steelcontracting rings.

For higher pressures, the Kobe fluid endconsists of three valve cylinders withexternal inlet and discharge manifolds.Valving is stainless steel, disc-type andin tandem arrangement. All sections ofthe stainless steel valve cylinder subjectto stress are circular and free of inter-secting holes. As with other fluid ends,the plunger and liner assemblies areflange retained and easilyinterchangeable.

In each case, the illustration represents the complete fluid end which is bolted to the spacer block.The button at the bottom of the plunger has a floating connection to the crosshead stem.

for a wide range of applications

Triplex Pump Applications

INDUSTRIAL TRIPLEX PUMPSA Division of Trico Industries, Inc.2503 Hunter Road • San Marcos, Texas 78666Telephone: (512) 353-4200 • Facsimilie: (512) 353-6213E-mail- prodinfo@tricoindustries.comKOBE Diamond is a registered trademark of Trico Industries

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02/98 © 1998 Trico Industries