Product Manual

ManualsBrandsPressure-Pro ManualsPumpsFully Plumbed CAT 3300 PSI 2.5 GPM Triplex Pressure Washer Pump w/ Plumbing Kit

FEATURES

Triplex plunger design provides a smooth liquid flow.

Specially formulated high pressure seals and concentric

solid ceramic plungers assure true wear surface and

extended seal life.

Stacked valve design for ease in servicing.

Ultra-compact, hollow-shafted pump for direct mounting

to gas engine.

Integral Pressure Unloader with built-in by-pass standard

on all units to assure system pressure control and pump

protection.

Fixed chemical injector standard on all units offers cleaning

flexibility.

SPECIFICATIONS U.S. Measure Metric Measure

MODEL 4PPX25GSI

Flow ..................................................................................2.5 gpm (9.5 lpm)

Maximum Discharge Pressure ............................... 3300 psi (228 bar)

Maximum RPM ..........................................................3450 rpm (3450 rpm)

Stroke ...................................................................................0.268” (6.8 mm)

MODEL 4PPX30GSI

Flow ..................................................................................2.7 gpm (10.2 lpm)

Maximum Discharge Pressure ............................... 3000 psi (310 bar)

Maximum RPM ..........................................................3450 rpm (3450 rpm)

Stroke ...................................................................................0.280” (7.2 mm)

COMMON PUMP SPECIFICATIONS

Inlet Pressure Range................................ Flooded to 60 psi (Flooded to 4 bar)

Bore ......................................................................................0.551” (14 mm)

Crankcase Capacity ........................................................ 8.5 oz. (0.25 l)

Maximum Liquid Temperature .................................. 140°F (60°C)

Above 130°F call CAT PUMPS for inlet conditions and elastomer recommendations.

Inlet Ports (1) ............................................................. 3/8” NPTF (3/8” NPTF)

Accessory Port (1) (Inlet) ....................................... 1/4” NPTF (1/4” NPTF)

Discharge Port w/Chemical Injector (1) .........3/8” NPTM (3/8” NPTM)

Chemical Injection Hose Barb ........................................1/4” (1/4”)

Shaft Diameter (Hollow) ...................................................3/4” (19.0 mm)

Weight ............................................................................. 10.7 lbs. (4.9 kg)

Dimensions ..................................................8.03 x 7.83 x 6.61” (204 x 199 x 168 mm)

Direct-Drive

Plunger Pumps

4PPX25GSI

4PPX30GSI

Models

All High Pressure Systems require a primary pressure regulating device (i.e. regulator,

unloader) and a secondary pressure relief device (i.e. pop-off valve, relief valve). Failure

to install such relief devices could result in personal injury or damage to pump or

property. CAT PUMPS does not assume any liability or responsibility for the operation

of a customer’s high pressure system.

Read all CAUTIONS and WARNINGS before commencing service or operation of any

high pressure system. The CAUTIONS and WARNINGS are included in each service

manual and with each Accessory Data sheet. CAUTIONS and WARNINGS can also be

viewed online at www.catpumps.com/cautions-warnings or can be requested directly

from CAT PUMPS.

DETERMINING Rated gpm = “Desired” gpm

THE PUMP R.P.M. Rated rpm “Desired” rpm

DETERMINING gpm x psi = Electric Brake

THE REQUIRED H.P. 1460 H. P. Required

Refer to pump Service Manual for repair procedure and additional technical information.

ELECTRIC HORSEPOWER REQUIREMENTS

MODELS FLOW PRESSURE RPM

psi

1500

psi

2000

psi

2850

psi

3000

psi

3300

U.S.

gpm lpm

bar

105

bar

140

bar

196

bar

310

bar

228

4PPX25GSI 2.5 9.5 2.6 3.4 4.9 5.1 5.6 3450

4PPX30GSI 2.7 10.2 2.8 3.7 5.3 5.5 6.1 3450

Gas engine must be purchased separately.

Summary of content (4 pages)

PAGE 1
Direct-Drive Plunger Pumps 4PPX25GSI 4PPX30GSI Models SPECIFICATIONS U.S. Measure Metric Measure Flow...................................................................................2.5 gpm Maximum Discharge Pressure................................ 3300 psi Maximum RPM...........................................................3450 rpm Stroke....................................................................................0.268” (9.5 lpm) (228 bar) (3450 rpm) (6.
PAGE 2
EXPLODED VIEW PLUNGER PUMP MODELS December 2012 4PPX25GSI, 4PPX30GSI 5 8 255 249 10 249 11 15 402 174 20 403 172 31 20 408 169 24 20 410 167 166 164 163 162 425 431 414 415 412 426 429 423 424 435 436 437 168 167 166 161 160 185 32 33 25 33 27 121 125 120 53 106 38 188 439 438 65 443 100 444 98 469 90 99 37 64 70 49 48 479 446 PARTS LIST ITEM P/N MATL DESCRIPTION 5 549360 8 547153 10 14041 11 55337 15 14488 20 547048 24 549608 25 49883 49882 27 15710 31 549726 32
PAGE 3
INTEGRAL UNLOADER SPECIFICATIONS UNLOADER TYPE Metric Measure (11.4 lpm) (7 228 bar) (3/8” NPTF) (3/8” NPTM) U.S. Measure Flow...................................................................................3.0 gpm PSI Range................................................................100 3300 psi Inlet Port ..................................................................... 3/8” NPTF Discharge Port w/Chemical Injector ...............
PAGE 4
7. 73 (196.3) 4.43(112.5) 3/8" NPTM DISCHARGE 6.51 (165.4) 5.28 (134.1) 1/4"-18 NPTF 8.03 (204) 3/8" NPTF INLET 5.28 (134.1) Models 4PPX25GSI, 4PPX30GSI CAT PUMPS 1681 - 94TH LANE N.E. MINNEAPOLIS, MN 55449-4324 PHONE (763) 780-5440 — FAX (763) 780-2958 e-mail: techsupport@catpumps.com www.catpumps.com For International Inquiries go to www.catpumps.com and navigate to the “Contact Us” link.