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

ItemPart no.DescriptionQtyAdd to request list
5549360Screw, HH (M6 x 14)STCP3
8547153Cover, BearingAL1
1014041O-Ring, Bearing Cover - 70DNBR1
1155337Seal, Oil, CrankshaftNBR1
1514488Bearing, Ball, InnerSTL1
20547048Rod, ConnectingTNM3
25132183Crankshaft, 5/8", (2.0 mm), 4DX10ERCM1
2715710Bearing, Ball, OuterSTL1
32549726Cap, Vented with O-Ring (Rain Cap)1
3314179O-Ring, Oil Filler Cap - 70DNBR1
3792241Gauge, Oil, Bubble with Gasket - 80D 1 - 2PC1
3844428Gasket, Flat, Oil Gauge - 80DNBR1
4844842Plug, DrainNY1
4914179O-Ring, Oil Filler Cap - 70DNBR1
5349801CrankcaseAL1
6446229Pin, CrossheadCM3
65132190Rod, PlungerBB3
7047215Seal, OilNBR3
90542403Plunger (M16 x 27)CC3
9846730Washer, Seal - 90DNBR3
99542405Retainer, Plunger (M6 x 35)S3
10046233Retainer, SealD3
10648222Seal, Low-Pressure with S-SpringNBR3
120547357Case, SealBB3
12113976O-Ring, Seal Case - 70DNBR3
12546240Seal, High-PressureNBR3
16013965O-Ring, Seat, Inlet - 70DNBR3
161545177Seat, InletS3
16319285O-Ring, Seat, Discharge - 70DNBR3
164545178Seat, DischargeS3
166547098ValveS6
167134579SpringS6
168543988Retainer, Spring, InletPVDF3
16949764Retainer, Spring, DischargePVDF3
172142807O-Ring, Valve Plug - 90DNBR3
174547104Plug, Valve (M20 x 1.5) with O-RingBB3
185132192Head, Manifold with Integral Regulator/Unloader BodyFBB1
188549357Screw, HSH (M6 x 60)STCP6
196101556Plug, Accessory (1/4" NPT[M])BB1
25530516Assembly, Bolt MountSTZP1
40132088Handle, Adjustable (Not Shown) 1 and tighten using a wrench.NY1
40246570Cap, Adjusting 1 11. Insert spring retainer and spring into the body.BB1
40833394Spring, Pressure 1 12. Thread the adjusting cap into the body and set for system pressure.STZP1
410549352Retainer, Spring 1 Injecting Pressure Chemical Draw Across OrificeSTCP1
41246251Stem, Piston 1 NOTE: If unit is infrequently used or periodically stored, O-rings may become dryBB1
41428338Backup Ring, Piston Stem 1 and will need to be replaced.PTFE1
41522056O-Ring, Piston Stem - 70D 1 NOTE: Optimum performance of Chemical Injector occurs with a 35 ft.NBR1
42346249Retainer, Valve 1 NOTE: This pump has an internally bypassed regulator and if the pump is operatedBB1
42413966O-Ring, Valve Retainer (Outer) - 70D 1 with no flow out the nozzles (100% bypass), heat damage will occur to the seals andNBR1
42546248Retainer, Piston 1 valve retainers in a short period of time, requiring premature replacement.BB1
42646250Washer 1 REGULATING DEVICES1
42826133O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the dischargeNBR1
42917399O-Ring, Plunger Retainer - 80DNBR1
435548193Valve 1 fixed chemical injector is available. (See back page for proper model identifications)S1
43646253SeatS1
43713963O-Ring, Seat - 70D 1 OPERATIONNBR1
43846254Seat, Check Valve (ELU Models) 1 Pump should be purged of air before commencing with operation. Liquid mustNY1
43913963O-Ring, Seat - 70D 1 OPERATIONNBR1
443541060Valve, Check with O-Ring 1 BypassBB1
44445924Spring, Check valveS1
44626133O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the dischargeNBR1
460107681Fitting, Discharge [3/8" NPT(M)] 1 BY-PASSBB1
46876754Kit, O-Ring (Includes: 414, 415, 424, 428, 429, 437) StandardNBR1
4697231Injector, Chemical, Fixed (1.8mm)BB1
47176146(ELU Models) 1 process until the desired system pressure is reached.NBR1
47246630Barb, TappedBB1
47614187O-Ring, Barb - 70DNBR1
47746259BallS1
47846250Washer 1 REGULATING DEVICES1
47946257Orifice (1.8 mm)BB1
–7231Injector, Chemical, Fixed (1.8mm)1
–7232Injector, Chemical, Fixed (2.1mm)1
–7232Injector, Chemical, Fixed (2.1mm)BB1
–14160O-Ring, Plunger Retainer - 80DFPM1
–14303O-Ring, Seat, Check Valve - 70DFPM1
–14320O-Ring, Piston Retainer - 75DFPM1
–33053Seal Kit - Standard NBR1
–46531Orifice (2.1 mm)BB1
–76467Kit, O-RingFPM1
–76468Kit, RepairFPM1
–76469Kit, Check ValveFPM1
–76638O-Ring, Valve Retainer (Outer) - 70DFPM1
–76643O-Ring, Piston Stem - 70DFPM1
–76978Valve Kit - Standard NBR1
–132185Crankshaft, 5/8", (3.0 mm), 4DX15ERCM1
–132186Crankshaft, 5/8", (4.0 mm), 4DX20ERCM1
–132187Crankshaft, 5/8", (5.6 mm), 4DX27ERCM1
–132188Crankshaft, 5/8", (6.2 mm), 4DX30ERCM1
–134670Plug, Valve with Port (1/4" NPT[F]) (Not Shown)1
–941516Assembly, Garden Hose (3 /8" NPT[M] x 3/4" GH[F])1
–990394Kit, Oil Drain (Not Shown)1
–6132Oil, Crankcase, Bottle 1l1

in the request listcovered 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
    • 42546248Retainer, Piston 1 valve retainers in a short period of time, requiring premature replacement.1×
    • 42826133O-Ring, Piston Retainer - 80D 1 An integral regulator or unloader with built-in bypass is part of the discharge1×
    • 43646253Seat1×
    • 43713963O-Ring, Seat - 70D 1 OPERATION1×
  • Repair kit

    76176

    NBR (STD)Medium Nitrile (Buna-N)

    contains 3 items · one kit per pump

    Parts list
    • 47614187O-Ring, Barb - 70D1×
    • 47746259Ball1×
    • 47846250Washer 1 REGULATING DEVICE1×
  • Repair kit

    76476

    FPM (0.4110)Fluorocarbon

    contains 3 items · one kit per pump

    Parts list
    • 47614187O-Ring, Barb - 70D1×
    • 47746259Ball1×
    • 47846250Washer 1 REGULATING DEVICE1×

More models in frame size 4DX

High Pressure Plunger Pump 4DX03ELR

4DX03ELR

Flow rate
1.1 l/min
Operating pressure
138 bar
Speed
1,750 min⁻¹
Material
Brass
High Pressure Plunger Pump 4DX10ER

4DX10ER

Flow rate
3.8 l/min
Operating pressure
138 bar
Speed
3,450 min⁻¹
Material
Brass
High Pressure Plunger Pump 4DX15EUF

4DX15EUF

Flow rate
5.7 l/min
Operating pressure
138 bar
Speed
3,450 min⁻¹
Material
Brass
High Pressure Plunger Pump 4DX20ER

4DX20ER

Flow rate
7.6 l/min
Operating pressure
138 bar
Speed
3,450 min⁻¹
Material
Brass

View all plunger pumps →

High Pressure Plunger Pump 4DX15ER
4DX15ER · High Pressure Plunger Pump