CAT PUMPS
CAT PUMPS

High Pressure Plunger Pump · Frame size 4DX 4DX15ER

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with a brass manifold, 304 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings. "R" pump models include an integral pressure regulating valve.

Technical specifications

Flow rate 5.7 l/min
Operating pressure 138 bar
Speed 3,450 min⁻¹
Inlet port 3/8" NPT(F)
Discharge port 3/8" NPT(M)
Shaft diameter 5/8" (hollow shaft)
Material Brass

Downloads

CAD files

Spare parts

Click an item in the drawing or in the parts list to add it to your request list. We turn it into a quotation – no order is placed.

3 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Exploded view

Exploded view 4DX15ER

Parts list

Item Part no. Description Qty Add to request list
5 549360 Screw, HH (M6 x 14)STCP 3
8 547153 Cover, BearingAL 1
10 14041 O-Ring, Bearing Cover - 70DNBR 1
11 55337 Seal, Oil, CrankshaftNBR 1
15 14488 Bearing, Ball, InnerSTL 1
20 547048 Rod, ConnectingTNM 3
25 132183 Crankshaft, 5/8", (2.0 mm), 4DX10ERCM 1
27 15710 Bearing, Ball, OuterSTL 1
32 549726 Cap, Vented with O-Ring (Rain Cap) 1
33 14179 O-Ring, Oil Filler Cap - 70DNBR 1
37 92241 Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC 1
38 44428 Gasket, Flat, Oil Gauge - 80DNBR 1
48 44842 Plug, DrainNY 1
49 14179 O-Ring, Oil Filler Cap - 70DNBR 1
53 49801 CrankcaseAL 1
64 46229 Pin, CrossheadCM 3
65 132190 Rod, PlungerBB 3
70 47215 Seal, OilNBR 3
90 542403 Plunger (M16 x 27)CC 3
98 46730 Washer, Seal - 90DNBR 3
99 542405 Retainer, Plunger (M6 x 35)S 3
100 46233 Retainer, SealD 3
106 48222 Seal, Low-Pressure with S-SpringNBR 3
120 547357 Case, SealBB 3
121 13976 O-Ring, Seal Case - 70DNBR 3
125 46240 Seal, High-PressureNBR 3
160 13965 O-Ring, Seat, Inlet - 70DNBR 3
161 545177 Seat, InletS 3
163 19285 O-Ring, Seat, Discharge - 70DNBR 3
164 545178 Seat, DischargeS 3
166 547098 ValveS 6
167 134579 SpringS 6
168 543988 Retainer, Spring, InletPVDF 3
169 49764 Retainer, Spring, DischargePVDF 3
172 142807 O-Ring, Valve Plug - 90DNBR 3
174 547104 Plug, Valve (M20 x 1.5) with O-RingBB 3
185 132192 Head, Manifold with Integral Regulator/Unloader BodyFBB 1
188 549357 Screw, HSH (M6 x 60)STCP 6
196 101556 Plug, Accessory (1/4" NPT[M])BB 1
255 30516 Assembly, Bolt MountSTZP 1
401 32088 Handle, Adjustable (Not Shown) 1 and tighten using a wrench.NY 1
402 46570 Cap, Adjusting 1 11. Insert spring retainer and spring into the body.BB 1
408 33394 Spring, Pressure 1 12. Thread the adjusting cap into the body and set for system pressure.STZP 1
410 549352 Retainer, Spring 1 Injecting Pressure Chemical Draw Across OrificeSTCP 1
412 46251 Stem, Piston 1 NOTE: If unit is infrequently used or periodically stored, O-rings may become dryBB 1
414 28338 Backup Ring, Piston Stem 1 and will need to be replaced.PTFE 1
415 22056 O-Ring, Piston Stem - 70D 1 NOTE: Optimum performance of Chemical Injector occurs with a 35 ft.NBR 1
423 46249 Retainer, Valve 1 NOTE: This pump has an internally bypassed regulator and if the pump is operatedBB 1
424 13966 O-Ring, Valve Retainer (Outer) - 70D 1 with no flow out the nozzles (100% bypass), heat damage will occur to the seals andNBR 1
425 46248 Retainer, Piston 1 valve retainers in a short period of time, requiring premature replacement.BB 1
426 46250 Washer 1 REGULATING DEVICES 1
428 26133 O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the dischargeNBR 1
429 17399 O-Ring, Plunger Retainer - 80DNBR 1
435 548193 Valve 1 fixed chemical injector is available. (See back page for proper model identifications)S 1
436 46253 SeatS 1
437 13963 O-Ring, Seat - 70D 1 OPERATIONNBR 1
438 46254 Seat, Check Valve (ELU Models) 1 Pump should be purged of air before commencing with operation. Liquid mustNY 1
439 13963 O-Ring, Seat - 70D 1 OPERATIONNBR 1
443 541060 Valve, Check with O-Ring 1 BypassBB 1
444 45924 Spring, Check valveS 1
446 26133 O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the dischargeNBR 1
460 107681 Fitting, Discharge [3/8" NPT(M)] 1 BY-PASSBB 1
468 76754 Kit, O-Ring (Includes: 414, 415, 424, 428, 429, 437) StandardNBR 1
469 7231 Injector, Chemical, Fixed (1.8mm)BB 1
471 76146 (ELU Models) 1 process until the desired system pressure is reached.NBR 1
472 46630 Barb, TappedBB 1
476 14187 O-Ring, Barb - 70DNBR 1
477 46259 BallS 1
478 46250 Washer 1 REGULATING DEVICES 1
479 46257 Orifice (1.8 mm)BB 1
– 7231 Injector, Chemical, Fixed (1.8mm) 1
– 7232 Injector, Chemical, Fixed (2.1mm) 1
– 7232 Injector, Chemical, Fixed (2.1mm)BB 1
– 14160 O-Ring, Plunger Retainer - 80DFPM 1
– 14303 O-Ring, Seat, Check Valve - 70DFPM 1
– 14320 O-Ring, Piston Retainer - 75DFPM 1
– 33053 Seal Kit - Standard NBR 1
– 46531 Orifice (2.1 mm)BB 1
– 76467 Kit, O-RingFPM 1
– 76468 Kit, RepairFPM 1
– 76469 Kit, Check ValveFPM 1
– 76638 O-Ring, Valve Retainer (Outer) - 70DFPM 1
– 76643 O-Ring, Piston Stem - 70DFPM 1
– 76978 Valve Kit - Standard NBR 1
– 132185 Crankshaft, 5/8", (3.0 mm), 4DX15ERCM 1
– 132186 Crankshaft, 5/8", (4.0 mm), 4DX20ERCM 1
– 132187 Crankshaft, 5/8", (5.6 mm), 4DX27ERCM 1
– 132188 Crankshaft, 5/8", (6.2 mm), 4DX30ERCM 1
– 134670 Plug, Valve with Port (1/4" NPT[F]) (Not Shown) 1
– 941516 Assembly, Garden Hose (3 /8" NPT[M] x 3/4" GH[F]) 1
– 990394 Kit, Oil Drain (Not Shown) 1
– 6132 Oil, Crankcase, Bottle 1l 1

in the request list covered by a requested kit

Seal and valve kits

A kit bundles the wearing parts of one assembly. Selecting it highlights the items it covers in the drawing and the parts list – once requested, they stay marked.

Repair kits

  • Repair kit

    76031

    NBRMedium Nitrile (Buna-N)

    contains 4 items · one kit per pump

    Parts list
    • 425 46248 Retainer, Piston 1 valve retainers in a short period of time, requiring premature replacement. 1×
    • 428 26133 O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the discharge 1×
    • 436 46253 Seat 1×
    • 437 13963 O-Ring, Seat - 70D 1 OPERATION 1×
  • Repair kit

    76176

    NBR (STD)Medium Nitrile (Buna-N)

    contains 3 items · one kit per pump

    Parts list
    • 476 14187 O-Ring, Barb - 70D 1×
    • 477 46259 Ball 1×
    • 478 46250 Washer 1 REGULATING DEVICE 1×
  • Repair kit

    76476

    FPM (0.4110)Fluorocarbon

    contains 3 items · one kit per pump

    Parts list
    • 476 14187 O-Ring, Barb - 70D 1×
    • 477 46259 Ball 1×
    • 478 46250 Washer 1 REGULATING DEVICE 1×

More models in frame size 4DX

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Flow rate
1.1 l/min
Operating pressure
138 bar
Speed
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Material
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High Pressure Plunger Pump 4DX10ER

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Flow rate
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Operating pressure
138 bar
Speed
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Material
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High Pressure Plunger Pump 4DX15EUF

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Flow rate
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Operating pressure
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Speed
3,450 min⁻¹
Material
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High Pressure Plunger Pump 4DX20ER

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Flow rate
7.6 l/min
Operating pressure
138 bar
Speed
3,450 min⁻¹
Material
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High Pressure Plunger Pump 4DX15ER
4DX15ER · High Pressure Plunger Pump
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