Pump Spec Sheet

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FEATURES

Industrial triplex design offers reliability and versatility.

Optional single shaft with side gauge (CSS version).

Ultra-compact direct-drive mount to motor using bell housing and

flexible coupling or gas engine with gearbox.

Optional belt-drive for precision flow setting.

Optional EPDM and FPM elastomers for compatibility with many

liquids.

Press-in seal cases and interchangeable valve assemblies for

easy servicing.

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.

Model 5CP3120 Shown

(Shaft protector and rails sold separately)

COMMON SPECIFICATIONS

Inlet Pressure Range ........................ -2.5 to 60 psi (-.2 to 4 bar)

Bore ....................................................... 0.630” (16mm)

Crankcase Capacity .......................... 17 oz. (0.51 l)

Max. Liquid Temperature .............. 160°F (71°C)

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

Inlet Ports (2) ...................................... 1/2” NPTF (1/2” NPTF)

Discharge Ports (2) ........................... 3/8” NPTF (3/8” NPTF)

Shaft Diameter .................................. 0.787” (20 mm)

SPECIFICATIONS U.S. Metric

MODELS 5CP3120, 5CP3120CSS

Flow ............................................................................................... 4.5 gpm (17 lpm)

Pressure Range ......................................................................... 100-3500 psi (7-245 bar)

Pump RPM .................................................................................. 1645 rpm (1645 rpm)

Stroke ............................................................................................ 0.709” (18 mm)

Weight .......................................................................................... 19.9 lbs. (9 kg)

Dimensions ....................................................... 10.4 x 10.0 x 5.8” (264 x 254 x 147 mm)

ALTERNATE SPECIFICATIONS

MODELS 5CP3120, 5CP3120CSS

Flow. .......................................................................................................4.8 gpm (18 lpm)

Pressure Range ......................................................................... 100-3000 psi (7-210 bar)

Pump RPM ........................................................................................1750 rpm (1750 rpm)

Stroke ............................................................................................ 0.709” (18 mm)

Weight .......................................................................................... 19.9 lbs. (9 kg)

Dimensions .......................................................... 10.4 x 8.6 x 5.8” (214 x 218 x 147 mm)

MODEL 5CP3120CSSG1

Flow. .......................................................................................................4.5 gpm (17 lpm)

Pressure Range ......................................................................... 100-3500 psi (7-245 bar)

Pump RPM .......................................................................................1645 rpm (1645 rpm)

Engine RPM ................................................................................ 3353 rpm (3353 rpm)

Stroke ........................................................................................................ 0.709” (18 mm)

Weight ...................................................................................................26.5 lbs. (12 kg)

Dimensions ....................................................... 11.0 x 12.7 x 6.4” (279 x 324 x 163 mm)

DETERMINING Rated gpm = “Desired” gpm

THE PUMP RPM Rated rpm “Desired” rpm

DETERMINING gpm x psi = Electric Brake

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

DETERMINING

Motor Pulley O.D. = Pump Pulley O.D.

MOTOR PULLEY SIZE

Pump rpm Motor rpm

See complete Drive Packages [Inclds: Pulleys, Belts, Hubs, Key] Tech Bulletin 003.

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

MODEL FLOW PRESSURE MOTOR

PULLEY SIZE

Using 1725 rpm Motor

& 8” Std. Pump Pulley

psi

1200

psi

1500

psi

2000

psi

2500

psi

3000

psi

3500

u.s.

gpm lpm

bar

105

bar

140

bar

175

bar

210

bar

245

rpm

Pulley

O.D.

3120, 3120CSS

4.5 17 3.7 4.6 6.2 7.7 9.3 10.8 1645 7.5

3120, 3120CSS

4.8 18 3.9 4.9 6.6 8.2 9.9 NA 1750

Direct-Drive

3120CSSG1

4.5 17 Consult Engine Manufacture 3353 Gearbox

ELECTRIC HORSEPOWER REQUIREMENTS

5CP Plunger Pump

Standard

Models

Gearbox

Model

5CP3120

5CP3120CSS

5CP3120CSSG1

Summary of content (4 pages)

PAGE 1
5CP Plunger Pump Standard Models 5CP3120 5CP3120CSS Gearbox Model 5CP3120CSSG1 Model 5CP3120 Shown (Shaft protector and rails sold separately) FEATURES l Industrial triplex design offers reliability and versatility. l Optional single shaft with side gauge (CSS version). l Ultra-compact direct-drive mount to motor using bell housing and flexible coupling or gas engine with gearbox. l Optional belt-drive for precision flow setting.
PAGE 2
PARTS LIST ITEM PART NUMBER DESCRIPTION QTY 5CP3120CSS 2 5 8 10 11 15 20 25 30 32 33 37 38 40 48 49 50 51 53 64 65 70 75 88 90 98 99 100 106 u = u 120 121 u 127 128 139 163 u 164 166 167 168 172 = u 173 174 185 188 196 250 255 260 265 275 283 5CP3120 MATL 30057 96031 126542 46910 14028 43222 14480 48742 46928 — — — 46798 14179 92241 44428 92519 125824 25625 23170 46940 14044 48617 46746 48458 46838 43900 45697 46884 46730 48394 48432 48201 46749 43316 106660 49134 76316 46888 13978 14329 48904 43
PAGE 3
EXPLODED VIEW 37 38 30 Models 5CP3120CSS 5CP3120CSSG1 Models 5CP3120, 5CP3120CSS 5CP3120CSSG1 July 2013 5CP3120 299 300 310 350 400 500 — 814843 33629 31340 u 31730 31665 76556 33060 31345 u 31735 30696 7850 — 6107 MATL FBB NBR FPM* EPDM* HT STHT NBR FPM EPDM STZP BB — — 5CP3120CSS 5CP3120CSSG1 814843 33629 31340 u 31730 31665 76556 33060 31345 u 31735 30696 7850 8076 6107 MATL FBB NBR FPM* EPDM* HT STHT NBR FPM EPDM STZP BB — — Head, Complete Kit, Seal (Inclds: 98,106,121,127,128) Standard Kit,
PAGE 4
10.89 (277) 8.6 (218) 5CP3120CSS 8.54 (217) (2) 3/8"NPTF DISCHARGE 6.67 (169) 5.71 (145) 1.38 (35) 1.46 (37) (2) 1/2" NPTF INLET (4) - .340 Ø (9) (4) - .315 Ø (8) .511 (13) DEEP 1.22 (31) 2.94 (75) 2 SLOTS 1.18 1.18 (30) (30) 4.92 (125) Models 5CP3120, 5CP3120CSS 4 3 5 1 6 2 4 Model 5CP3120 Shown 1 Special concentric, high density, polished, solid ceramic plungers provide a true wear surface and extended seal life.