Pressure Washer Products
Quality Pressure Washers,
High Pressure Accesories, Soft Wash Systems
and Specialty Pumps
(800) 519-9279 8-5 EST
(727) 562-5488 Outside US
sales@pressurewasherproducts.com
(727) 449-1559 Fax
SOLID SHAFT AND HOLLOW SHAFT PUMPS
CALL FOR PRICING ON ALL CAT PUMPS AND REPAIR PARTS 800 519-9279 CALL FOR PRICING!
SOLID SHAFT
RAILS AND PROTECTIVE CAP NOT INCLUDED
CONTINUOUS-DUTY BELT-DRIVEN PLUNGER PUMPS FOR GAS OR ELECTRIC PRESSURE WASHERS
PART
PUMP
GPM /
PSIBHP /
GHPRPM
SHAFT
mmWT
LBS
2612
270 (3)
FRAME 3.5 /
15003.5 /
5.01437
16.5
15
2798
310 (5)
FRAME 4.0 /
22006.0 /
8.0950
20
20
2948
3CP1120.3
HOT 4.2 /
22006.5 /
8.51725
16.5
15
5715
1050 (15)
FRAME 10.0 /
220015.0 /
20.0 958
30
44
4339
5CP2120W
4.0 /
25007.0 /
9.0950
20
20
2901
650 (15)
FRAME 7.0 /
300014.5 /
19.0 1000
30
44
5836
660
7.0 /
300014.5 /
19.0 1000
30
44
6005
5CP3120
4.5 /
350011.0 /
14.01645
20
20
1935
56 (7)
FRAME 5.5 /
350013.5 /
17.01210
24
26
2616
530 (7)
FRAME 5.0 5.0 /
25008.5 /
11.51100
24
26
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Cat Pumps Plunger Pump Direct Flow Design
The spring-reinforced, preset packing design of the plunger pumps permits significantly greater pressures than piston pumps. The plunger pumps also offer tremendous versatility with optional direct coupling drives and wet-end material options.
Like the piston pumps, the design of the plunger pump also allows for forward liquid flow, however, both the inlet and discharge valves are spring-loaded closed and hydraulically opened.
At the beginning of the stroke, the plunger displaces the liquid in the manifold chamber and forces the discharge valve open. There is a split second at the end of the stroke when both inlet and discharge valves are closed.
As the plunger rod begins its backward stroke, the inlet valve opens to allow more liquid into the manifold chamber, thereby keeping a smooth forward flow of liquid.
Note: The spring tension on the discharge valves requires a minimum of 100 PSI discharge pressure to properly activate the valves. (www.catpumps.com)
CALL FOR PRICING! The design of the piston pump is for the fluid to move continually in one, smooth forward direction. This design allows greater suction capabilities up to –8.5 PSI and reduced risk of cavitation provided the pump is properly primed. At the beginning of the stroke, the mechanically actuated inlet valve [and piston] close. As the piston rod moves forward, the liquid is forced out through the discharge valves. Simultaneously, the liquid is entering the pump inlet and flowing in behind the inlet valve. As the piston rod begins the backward stroke, the inlet valve mechanically opens, permitting the liquid to continue its flow forward through the piston into the discharge chamber, until the stoke is completed. Note: The spring tension on the discharge valves requires a minimum of 100 PSI discharge pressure to properly activate the valves. (www.catpumps.com) 
Cat Pumps
PISTON PUMPS - SOLID SHAFT
DESIGNED FOR LOW PRESSURE, LIGHT TO MEDIUM COMMERCIAL DUTY!
PART
PUMP
GPM
PSI
BHP
GHP
RPM
SHAFT
WT.
LBS
2958
290 (3)
FRAME3.5
1200
4.0
5.0
1200
16.5mm
12
4467
280 (3)
FRAME 3.0
1000
2.0
.0
1330
16.5mm
12
2613
430 (4)
FRAME 5.0
1000
3.5
4.5
1040
16.5mm
18
1 800 519-9279
Cat Pumps Piston Pump Uniflow Design
Cat Pumps
TRIPLEX PLUNGER PUMPS
ELECTRIC FLANGE HOLLOW SHAFT
PART
PUMP
GPM
PSI
BHP
RPM
SHAFT
WT.
LBS
4528
2SFX29ELS
2.85
1500
3.5
1725
5/8"
12
3498
2SFX30E3
(190 DEG. SEALS) 3.0
1500
3.5
3450
5/8"
13
3743
2SFX20ES
2.0
2000
3.0
3450
5/8"
13
2795
2SF22ES
2.2
2000
4.0
3450
5/8"
11
3857
2SF22EL
2.2
2000
4.0
1725
5/8"
11
2189
4SF40ELS
4.0
3500
9.5
1725
1 1/8"
25
CALL FOR PRICING!
1 800 519-9279
Cat Pumps SF Plunger Pump Superflow Design
The SF plunger pumps are a combination of the UNIFLOW piston and direct flow plunger pump designs. In the SF pumps, both the inlet and discharge valves are spring-loaded closed and hydraulically opened, just like the plunger pumps, however, they have a flow- through ceramic plunger design.
The continuous forward flow characteristic of the piston pumps is utilized in conjunction with the spring-reinforced, preset packing design of the plunger pumps. These features give the SF pumps strong suction capabilities and higher pressure performances.
At the beginning of the stroke, the inlet valve is closed against the ceramic plungers and the flow is forced out through the discharge valves.
As the plunger rod begins its backward stroke, the inlet valve opens [moves away from the ceramic plunger] and allows the inlet flow to enter the manifold chamber through the holes in the ceramic plunger.
Note: The spring tension on the discharge valves requires a minimum of 100 PSI discharge pressure to properly activate the valves. (www.catpumps.com)
Cat Pump GAS FLANGE HOLLOW SHAFT
| PART | PUMP | GPM | PSI | GHP | RPM | SHAFT | WT. LBS |
| 5664 | 2SFX30GS | 3.0 | 2000 | 5.5 | 3450 | 3/4" | 12 |
| 6136 | 2DX30GS | 3.0 | 2000 | 5.0 | 3450 | 3/4" | 11 |
| 2181 | 4SF35GS1 | 3.5 | 3500 | 11.0 | 3500 | 1" | 25 |
| 4272 | 4SF40GS1 | 4.0 | 3500 | 12.5 | 3200 | 1" | 25 |
| 6419 | 66DX35G11 | 3.5 | 4000 | 12.5 | 3450 | 1" | 27 |
CALL FOR PRICING!
1 800 519-9279
DIRECT-DRIVE CLOSE COUPLED PRESSURE WASHER PUMPS
66DX
Modular unloader and fixed Chemical injector included
Popular high-pressure direct-drive plunger pumps for gas pressure washers
View Data Sheet
| PART | GPM | PSI | PRICE |
| 66DX30G1I | 3.0 | 4000 | $600.48 |
| 66DX35G1I | 3.5 | 4000 | $600.48 |
| 66DX40F1I | 4.0 | 4000 | $600.48 |
3 SP PLUNGER PUMP SERIES
Modular unloader and fixed Chemical injector included
Compact, light-weight direct-drive plunger pumps for gas or electric
| PART | GPM | PSI | PRICE |
| 3DX25GSI | 2.5 | 2500 | $436.77 |
| 3DX30GSI | 3.0 | 2500 | $436.77 |
2SF PLUNGER PUMP SERIESField-proven direct-drive plunger pumps for gas and electric pressure washers standard with regulating unloader and by-pass hose
Complete line of coordinating accessories available
4SF PLUNGER PUMP SERIESField-proven direct-drive plunger pumps for gas and electric pressure washer standard with regulating unloader
Complete line of coordinating accessories available
| PART | GPM | PSI | PRICE |
| 4SF35GS1 | 3.5 | 3500 | $794.88 |
| 4SF40GS1 | 4.0 | 3500 | $794.88 |
| 4SF40ELS | 4.0 | 3500 | $815.00 |
| PART | GPM | PSI | PRICE |
| 2SFX30GS | 3.0 | 2000 | $377.00 |
| 2SFX30GZ | 3.0 | 2500 | $400.00 |
| 2SFX30ES | 3.0 | 1500 | $365.00 |
| PART | GPM | PSI | PRICE |
| 3SP30G1I | 3.0 | 3000 | $393.66 |
| 3SP35GEI | 3.5 | 2500 | $393.66 |
3DX PLUNGER PUMP SERIES
Modular unloader and fixed Chemical injector included
Affordable, compact direct-drive plunger pumps for lightweight gas pressure washers low-maintenance, easy-to-service stacked SS valves
