High Pressure Plunger Pump · Frame size 3CP 3CP1120

Name: 3CP1120
Brand: CAT PUMPS
SKU: 3CP1120

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.

The 1420 min⁻¹ permits multiple drive options, including direct drive with a bell housing and flexible coupling, clutch or belt drive.

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate	13.3 l/min
Operating pressure	150 bar
Speed	1,450 min⁻¹
Inlet port	1/2" NPT
Discharge port	3/8" NPT
Shaft diameter	16.5 mm
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.

9 kits bundle wearing parts of this pump ↓

Skip the drawing, go to the parts list

Parts list

Item	Part no.	Description	Qty
5	125824	Screw, HHC Sems (M6x16) 8/4STCP	8
8	46901	Cover, BearingAL
10	14028	O-Ring, Bearing Cover - 70D 2-2-1NBR	2
11	43222	Seal, Oil, Crankshaft 2/1/2NBR
15	14480	Bearing, Ball 2-2-2STL	2
20	48730	Rod, Connecting, AssemblyTNM	3
25	46927	Crankshaft, Dual End - 3CP1221 (M12.7)FCM	1
32	46798	Cap, Oil Filler, Domed	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
40	125824	Screw, HHC Sems (M6x16) 8/4STCP	4
48	25625	Plug, Drain (1/4" x 19 BSP[M])STCP	1
49	23170	O-Ring, Drain Plug - 70DNBR	1
50	46939	Cover, RearAL	1
51	14041	O-Ring, Bearing Cover - 70DNBR	1
53	48644	CrankcaseAL	1
64	46615	Pin, CrossheadCM	3
65	48459	Rod, PlungerBBNP	3
70	46839	Seal, Oil, CrankcaseNBR	3
75	43900	Slinger, BarrierS	3
88	45697	Washer, Keyhole (M18 x 10)S	3
90	46976	Plunger (M18x43)CC	3
98	46730	Washer, Seal - 90DNBR	3
99	48201	Retainer, Plunger with Stud (M6)SS	3
100	46541	Retainer, SealPVDF	3
106	43243	Seal, Low-Pressure with S-SpringNBR	3
120	46625	Case, SealBB	3
121	13976	O-Ring, Seal Case - 70DNBR	3
125	43245	Seal, High-Pressure with S-Support (Model 530)SNG	3
139	43448	Plug, Inlet, (1/2" NPT[M])BB	1
163	17547	O-Ring, Seat - 85DNBR	6
164	45790	SeatS	6
166	43723	Valve, Q.V.S	6
167	43750	Spring, ValveS	6
168	44565	Retainer, Spring, DischargePVDF	6
172	49382	O-Ring, Valve Plug - 90DNBR	6
174	46756	Plug, ValveBB	6
185	46616	Manifold, HeadFBB	1
188	126512	Screw, HSH (M8 x 65)STCP	8
500	8075	Gearbox (See Individual Data Sheet) (Model 3CP1211G)	1
–	6124	Gasket, Liquid (3 oz. / 0,1 l)	2
–	30047	Key (M5 x 5 x 24)	1
–	30696	Reverse Pliers (Not Shown)	1
–	34334	Kit, Oil Drain (3/8" x 24") (Not Shown) 1	1
–	46991	Crankshaft, Dual End - 3CP1241 (M11)FCM	1
–	46994	Crankshaft, Dual End - 3CP1231 (M7.3)FCM	1
–	48257	Kurbelwelle, einseitig - 3CP1120G, 3CP1120CS (M12.7) (3CP_RS - Wellenende links)FCM	1
–	48259	Cover, Blind (3CP1241G)AL	1
–	48484	Crankshaft, Single End - 3CP1241G (M11)FCM	1
–	118672	Protector, Shaft (Model 5CP5120)	1
–	126607	Assy, Angle Rail	1
–	127409	Cap, Vented with O-Ring (Rain Cap)	1
–	814841	Head, Complete with NBR Seals and O-Rings	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.

Seal kits

Seal kit

33983

NBR (STD)Medium Nitrile (Buna-N)

contains 5 items · one kit per pump
Parts list
- 98 46730 Scheibe, Plungerhalter 3×
- 106 43243 Dichtung, Niederdruck 3×
- 121 13976 O-Ring, Dichtungsgehäuse 3×
- 125 43245 Seal, High-Pressure with S-Support 3×
- 127 43245 Dichtung, Hochdruck 3×
Seal kit

76924

FPM (0.0110)Fluorocarbon

contains 5 items · one kit per pump
Parts list
- 98 48432 Scheibe, Plungerhalter 3×
- 106 46651 Dichtung, Niederdruck 3×
- 121 48905 O-Ring, Dichtungsgehäuse 3×
- 125 46652 Seal, High-Pressure with S-Support 3×
- 127 46652 Dichtung, Hochdruck 3×
Seal kit

31983

HT (0.3000)Hi-Temp (EPDM Alternative)

contains 5 items · one kit per pump
Parts list
- 98 46730 Scheibe, Plungerhalter 3×
- 106 43243 Dichtung, Niederdruck 3×
- 121 13976 O-Ring, Dichtungsgehäuse 3×
- 125 46652 Seal, High-Pressure with S-Support 3×
- 127 46652 Dichtung, Hochdruck 3×
Seal kit

32096

STHT (0.3410)Special PTFE High Temp

contains 5 items · one kit per pump
Parts list
- 98 48394 Scheibe, Plungerhalter 3×
- 106 76243 Dichtung, Niederdruck 3×
- 121 48522 O-Ring, Dichtungsgehäuse 3×
- 125 46652 Seal, High-Pressure with S-Support 3×
- 127 46652 Dichtung, Hochdruck 3×
Seal kit

76526

STHT (0.3400)Special PTFE High Temp

contains 6 items · one kit per pump
Parts list
- 98 46730 Scheibe, Plungerhalter 3×
- 106 76243 Dichtung, Niederdruck 3×
- 120 46625 Dichtungsgehäuse 3×
- 121 13976 O-Ring, Dichtungsgehäuse 3×
- 125 46652 Seal, High-Pressure with S-Support 3×
- 127 46652 Dichtung, Hochdruck 3×
Seal kit

76983

STHT (0.3400)Special PTFE High Temp

contains 5 items · one kit per pump
Parts list
- 98 46730 Scheibe, Plungerhalter 3×
- 106 76243 Dichtung, Niederdruck 3×
- 121 13976 O-Ring, Dichtungsgehäuse 3×
- 125 46652 Seal, High-Pressure with S-Support 3×
- 127 46652 Dichtung, Hochdruck 3×

Valve kits

Valve kit

33062

NBR (STD)Medium Nitrile (Buna-N)

contains 6 items · 2 kits per pump
Parts list
- 163 17547 O-Ring, Ventilsitz 3×
- 164 45790 Ventilsitz 3×
- 166 43723 Ventil 3×
- 167 43750 Feder, Ventil 3×
- 168 44565 Federhalter, Ventil 3×
- 172 49382 O-Ring, Ventilstopfen 3×
Valve kit

33258

FPM (0.0110)Fluorocarbon

contains 6 items · 2 kits per pump
Parts list
- 163 11685 O-Ring, Ventilsitz 3×
- 164 45790 Ventilsitz 3×
- 166 43723 Ventil 3×
- 167 43750 Feder, Ventil 3×
- 168 44565 Federhalter, Ventil 3×
- 172 15855 O-Ring, Ventilstopfen 3×
Valve kit

76882

EPDM (0.0220)Ethylene Propylene Diene Monomer

contains 6 items · 2 kits per pump
Parts list
- 163 46648 O-Ring, Ventilsitz 3×
- 164 45790 Ventilsitz 3×
- 166 43723 Ventil 3×
- 167 43750 Feder, Ventil 3×
- 168 44565 Federhalter, Ventil 3×
- 172 48431 O-Ring, Ventilstopfen 3×