High Pressure Plunger Pump · Frame size 2SF
2SFQ25SEEL
This triplex (three plunger rods) positive displacement, reciprocating plunger pump is constructed with 316 stainless steel manifolds, 316 stainless steel valve assemblies, solid ceramic plungers and standard NBR (Buna-N) seals and O-rings.
Cat Pumps “Q” pump models reduce sound levels by -6 dBa (decibels). With “Q” model pumps and other noise reduction measures, equipment builders can supply quiet, pleasing equipment to their customers.
Stainless steel 2SF Series pumps are hollow-shafted and designed to bolt directly to a 56C-face electric motor, providing an easy, compact installation.
Technical specifications
| Flow rate | 8 l/min |
|---|---|
| Operating pressure | 83 bar |
| Speed | 1,450 min⁻¹ |
| Inlet port | 3/8" |
| Discharge port | 3/8" |
| Shaft diameter | 5/8" (hollow shaft) |
| Material | Brass |
Downloads
- Data sheet German · PDF
- Data sheet English · PDF
- Service manual English · PDF
- Operating manual German / English · PDF
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.
On the request list: 0 · for this pump: 0Open request list →
9 kits bundle wearing parts of this pump ↓
Exploded view
Parts list
| Item | Part no. | Description | Qty | Add to request list |
|---|---|---|---|---|
| 5 | 547445 | Screw, HHC Sems (M6 x 14)S | 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 | 547046 | Rod, ConnectingTNM | 3 | |
| 25 | 544693 | Crankshaft (7.3 mm) 2SFQ25SEELCM | 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 - 2PC | 1 | |
| 38 | 44428 | Gasket, Flat, Oil Gauge - 80DNBR | 1 | |
| 48 | 44842 | Plug, DrainNY | 1 | |
| 49 | 14179 | O-Ring, Oil Filler Cap - 70DNBR | 1 | |
| 52 | 833820 | Pin, GuideSSSS | 2 | |
| 53 | 833819 | CrankcaseAL | 1 | |
| 64 | 16948 | Pin, CrossheadCM | 3 | |
| 65 | 834203 | Rod, PlungerSSTO | 3 | |
| 69 | 126259 | Washer, Oil SealSTCP | 3 | |
| 70 | 25461 | Seal, Oil CrankcaseNBR | 3 | |
| 90 | 544697 | Plunger, Ceramic (M18 x 18)CC | 3 | |
| 100 | 44869 | Retainer, SealPVDF | 3 | |
| 106 | 547683 | Seal, Low-Pressure with SS - SpringNBR | 3 | |
| 110 | 833996 | Manifold, InletSS | 1 | |
| 125 | 44652 | Seal, High-Pressure with SS - SupportSNG | 3 | |
| 134 | 33873 | Valve, Inlet, High-TemperatureD | 3 | |
| 135 | 543689 | SpacerSS | 3 | |
| 136 | 543690 | Spring, Inlet ValveSS | 3 | |
| 137 | 88575 | Washer, Conical (M6)S | 3 | |
| 138 | 543692 | Nut (M6)SS | 3 | |
| 152 | 26089 | O-Ring, Seat - 80DNBR | 3 | |
| 157 | 544700 | Adapter, ValveSS | 3 | |
| 159 | 26089 | O-Ring, Seat - 80DNBR | 3 | |
| 164 | 544293 | SeatSS | 3 | |
| 166 | 833825 | ValveD | 3 | |
| 167 | 543700 | SpringSS | 3 | |
| 168 | 44565 | Retainer, Spring, DischargePVDF | 3 | |
| 185 | 547705 | Manifold, DischargeSS | 1 | |
| 188 | 544701 | Screw, HSH (M8 x 80)S | 6 | |
| 255 | 30517 | Assembly, Bolt MountSTZP | 1 | |
| – | 6139 | Lubricant, Anti-Seize (8 oz) (Model 1531) | 1 | |
| – | 34974 | Inlet Valve Kit - Standard NBR | 1 | |
| – | 45914 | Crankshaft, 1725 RPM, 5/8" (8.5mm) 2SF29ELSCM | 1 | |
| – | 80228 | Screw, HH (M8 - 1.25 x 80 Full Thread) | 2 | |
| – | 544694 | Crankshaft (10.2 mm) 2SFQ35SEELCM | 1 | |
| – | 549726 | Cap, Vented with O-Ring (Rain Cap) | 1 | |
| – | 990394 | Kit, Oil Drain (Not Shown) | 1 | |
| – | 6132 | Oil, Crankcase, Bottle 1l | 1 |
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.
Seal kits
Seal kit
76273
NBR (STD)Medium Nitrile (Buna-N)
contains 4 items · one kit per pump
Parts list
- 106547683Dichtung, Niederdruck3×
- 12544652Dichtung, Hochdruck3×
- 15226089O-Ring, Adapter Distanzstück, innen3×
- 15926089O-Ring, Adapter Distanzstück, außen3×
Seal kit
33453
FPM (0.0110)Fluorocarbon
contains 4 items · one kit per pump
Parts list
- 106545192Dichtung, Niederdruck3×
- 12544652Dichtung, Hochdruck3×
- 15211377O-Ring, Adapter Distanzstück, innen3×
- 15911377O-Ring, Adapter Distanzstück, außen3×
Seal kit
30536
EPDM (0.0220)Ethylene Propylene Diene Monomer
contains 4 items · one kit per pump
Parts list
- 106546507Dichtung, Niederdruck3×
- 12544652Dichtung, Hochdruck3×
- 15246647O-Ring, Adapter Distanzstück, innen3×
- 15946647O-Ring, Adapter Distanzstück, außen3×
Seal kit
76969
FFKM (0.0770)Perfluoroelastomer
contains 6 items · one kit per pump
Parts list
- 106764431Dichtung, Niederdruck3×
- 10676443Dichtung, Niederdruck3×
- 125760522Dichtung, Hochdruck3×
- 12544652Dichtung, Hochdruck3×
- 152703244O-Ring, Adapter Distanzstück, innen3×
- 159703244O-Ring, Adapter Distanzstück, außen3×
Seal kit
32210
HT (0.3000)Hi-Temp (EPDM Alternative)
contains 4 items · one kit per pump
Parts list
- 106547683Dichtung, Niederdruck3×
- 12546652Dichtung, Hochdruck3×
- 15226089O-Ring, Adapter Distanzstück, innen3×
- 15926089O-Ring, Adapter Distanzstück, außen3×
Valve kits
Valve kit
76282
NBR (STD)Medium Nitrile (Buna-N)
contains 5 items · one kit per pump
Parts list
- 15226089O-Ring, Adapter Distanzstück, innen3×
- 15926089O-Ring, Adapter Distanzstück, außen3×
- 164544293Ventilsitz3×
- 167543700Feder3×
- 16844565Federhalter, Ventil3×
Valve kit
33454
FPM (0.0110)Fluorocarbon
contains 6 items · one kit per pump
Parts list
- 15211377O-Ring, Adapter Distanzstück, innen3×
- 15911377O-Ring, Adapter Distanzstück, außen3×
- 164544293Ventilsitz3×
- 166543669Ventil3×
- 167543700Feder3×
- 16844565Federhalter, Ventil3×
Valve kit
30546
EPDM (0.0220)Ethylene Propylene Diene Monomer
contains 6 items · one kit per pump
Parts list
- 15246647O-Ring, Adapter Distanzstück, innen3×
- 15946647O-Ring, Adapter Distanzstück, außen3×
- 164544293Ventilsitz3×
- 166543669Ventil3×
- 167543700Feder3×
- 16844565Federhalter, Ventil3×
Valve kit
76596
FFKM (0.0770)Perfluoroelastomer
contains 6 items · one kit per pump
Parts list
- 152703244O-Ring, Adapter Distanzstück, innen3×
- 159703244O-Ring, Adapter Distanzstück, außen3×
- 164544293Ventilsitz3×
- 166543669Ventil3×
- 167543700Feder3×
- 16844565Federhalter, Ventil3×
More models in frame size 2SF
2SF05SEEL
- Flow rate
- 1.6 l/min
- Operating pressure
- 83 bar
- Speed
- 1,450 min⁻¹
- Material
- Stainless Steel
2SF09ES
- Flow rate
- 9 l/min
- Operating pressure
- 130 bar
- Speed
- 2,800 min⁻¹
- Material
- Brass
2SF10ES
- Flow rate
- 3.8 l/min
- Operating pressure
- 138 bar
- Speed
- 3,450 min⁻¹
- Material
- Brass
2SF10SEEL
- Flow rate
- 3.1 l/min
- Operating pressure
- 83 bar
- Speed
- 1,450 min⁻¹
- Material
- Stainless Steel