High Pressure Plunger Pump · Frame size 2SF 2SF11ES

Name: 2SF11ES
Brand: CAT PUMPS
SKU: 2SF11ES

This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with brass manifolds, 304 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.

It is a hollow shaft pump that can be bolted directly to a standard motor for easy and compact installation.

Request this pump Data sheet (PDF) Spare parts

Technical specifications

Flow rate	11 l/min
Operating pressure	110 bar
Speed	2,800 min⁻¹
Inlet port	3/8" NPT
Discharge port	3/8" NPT
Shaft diameter	24 mm (hollow shaft)
Material	Brass

Downloads

CAD files

STEP – 2SF11ES (catpumps.com)

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

Parts list

Item	Part no.	Description	Qty
5	549360	Screw, HH (M6 x 14)STCP	3
8	547084	Cover, BearingAL	1
10	14041	O-Ring, Bearing Cover - 70DNBR	1
11	46419	Seal, OilNBR	1
15	56110	Bearing, Ball, InnerSTL	1
20	547046	Rod, ConnectingTNM	3
25	548584	Crankshaft - 2SF09ESFCM	1
26	12385	Ring, Retaining, BearingSTL	1
27	15710	Bearing, Ball, OuterSTL	1
32	547961	Cap, Oil Filler with O-RingRTP	1
33	14179	O-Ring, Oil Filler Cap - 70DNBR	1
37	92241	Gauge, Oil, Bubble with Gasket - 80D 1 - 2	1
38	44428	Gasket, Flat, Oil Gauge - 80DNBR	1
48	44842	Plug, DrainNY	1
49	14179	O-Ring, Oil Filler Cap - 70DNBR	1
53	547285	CrankcaseAL	1
64	16948	Pin, CrossheadCM	3
65	834359	Rod, PlungerSS303	3
69	126259	Washer, Oil SealSTCP	3
70	25461	Seal, Oil CrankcaseNBR	3
90	45847	Plunger (M18 x 14) All Models except 2SF29ELSCC	3
100	44869	Retainer, SealPVDF	3
106	834378	Seal, LPSNBR	3
110	44874	Manifold, InletBB	1
125	43245	Seal, High-Pressure with S-Support (Model 530)SNG	3
134	45854	Valve, InletS	3
135	549520	Spacer, InletS	3
136	44872	Spring, Inlet ValveS	3
137	88575	Washer, Conical (M6)S	3
138	27000	Nut, Slotted (M6)S	3
139	14158	Cotterpin (M1.6 x 10)S	3
152	26089	O-Ring, Seat - 80DNBR	3
157	44878	Spacer, Discharge, Valve 2SFX30GZBB	3
159	26089	O-Ring, Seat - 80DNBR	3
164	44881	SeatS	3
166	43723	Valve, Q.V.S	3
167	541062	SpringS	3
168	44565	Retainer, Spring, DischargePVDF	3
185	44879	Manifold, DischargeBB	1
188	126762	Screw, HSH (M8 x 75)STCP	6
255	30517	Assembly, Bolt MountSTZP	1
400	7500S	Unloader, Regulating	1
402	540081	Cap, Hex Adjusting 1BB	414
408	549124	Spring, Pressure 1STZP	415
410	549352	Retainer, Spring 1 Injecting Pressure Chemical Draw Across OrificeSTCP	1
412	45694	Stem, Piston (M5) 1 InletS	1
414	20184	Backup Ring, Plunger RetainerPTFE	1
415	14190	O-Ring, Plunger Retainer - 70DNBR	425
425	107673	Retainer, Piston 1BB	1
428	13969	O-Ring, Piston Retainer 1NBR	429
429	14759	O-Ring, Stem 1 INLETNBR	440
430	107675	Back-up-Ring, Piston Stem 1PTFE	443
435	45696	Valve and Ball Assembly (M5) 1 442 DischargeBB	444
436	107680	Seat 1S	446
437	13963	O-Ring, Seat - 70D 1 OPERATIONNBR	1
440	107669	Body 1BB	436
442	13969	O-Ring, Piston Retainer 1NBR	1
443	541060	Valve, Check with O-Ring 1 BypassBB	442
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	455
455	45695	Fitting, By-Pass [3/8" NPT(F)]BB	1
460	107681	Fitting, Discharge [3/8" NPT(M)] 1 BY-PASSBB
–	11377	O-Ring, Adapter, Inner - 80DFPM	3
–	14160	O-Ring, Plunger Retainer - 80DFPM	1
–	14161	O-Ring, Piston Stem 1FPM	428
–	14303	O-Ring, Seat, Check Valve - 70DFPM	460
–	14320	O-Ring, Piston Retainer - 75DFPM	430
–	14320	O-Ring, Piston Retainer - 75DFPM	437
–	33873	Valve, Inlet, High-TemperatureD	3
–	46652	Seal, High-Pressure, High-Temperature, 2-Piece with S-Support All Models except GZHT	3
–	76052	Seal, HPS w/SST4	3
–	548582	Crankshaft - 2SF13ESFCM	1
–	548583	Crankshaft - 2SF11ESFCM	1
–	549468	Valve, Check with FPM O-RingSS	1
–	703244	O-Ring, Adapter, Valve, Rear - 75DIPFE	3
–	831515	Valve, Check with EPDM O-RingSS
–	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

34053

NBRMedium Nitrile (Buna-N)

contains 6 items · one kit per pump
Parts list
- 106 834378 Dichtung, Niederdruck 3×
- 106 44876 Seal, Low-Pressure with SS - Spring 3×
- 125 43245 Dichtung, Hochdruck m/S 3×
- 139 14158 Splint (M1.6x10) 3×
- 152 26089 O-Ring, Adapter Distanzstück, innen - 80D 3×
- 159 26089 O-Ring, Adapter Distanzstück, außen - 80D 3×

Valve kits

Valve kit

34052

NBRMedium Nitrile (Buna-N)

contains 6 items · one kit per pump
Parts list
- 152 26089 O-Ring, Adapter Distanzstück, innen - 80D 3×
- 159 26089 O-Ring, Adapter Distanzstück, außen - 80D 3×
- 164 44881 Ventilsitz 3×
- 166 43723 Ventil, Auslass 3×
- 167 541062 Feder, Ventil 3×
- 168 44565 Federhalter, Ventil 3×
Valve kit

34668

NBRMedium Nitrile (Buna-N)

contains 7 items · one kit per pump
Parts list
- 134 45854 Ventil, Einlass 3×
- 135 549520 Distanzstück 3×
- 136 44872 Feder, Einlassventil 3×
- 137 88575 Scheibe, konisch (M6) 3×
- 139 14158 Splint (M1.6x10) 3×
- 152 26089 O-Ring, Adapter Distanzstück, innen - 80D 3×
- 159 26089 O-Ring, Adapter Distanzstück, außen - 80D 3×