GP7142-4000

A German-made reciprocating triplex plunger pump.

Features:
Spheroidal cast iron crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; solid ceramic plungers; nitrile seals with fabric reinforcing; stainless steel valves and machined stainless steel manifold.

  • GP7142-4000 Exploded View
  • Giant Industries Limited Warranty
  • GP7142-4000 Installation Instructions
  • GP7142-4000 Repair Instructions
  • Troubleshooting Guide

SPECIFICATIONS

U.S. Metric
Max Flow (Continuous) 38.4 GPM 145.3 L/min
Max Discharge Pressure (Continuous) 2600 PSI 180 bar
Max Speed (Continuous) 700 RPM
Maximum Inlet Pressure 140 PSI 10 bar
Plunger Diameter 1.7″ 42mm
Stroke 2.0″ 52mm
Max Temperature 140 ºF 60 ºC
Crankshaft Either side
Crankshaft Capacity 1.6 Gal. 6.0 L
Weight 455 lbs. 206 kg.
Inlet Ports (2) 2-1/2″ NPT
Discharge Ports (2) 1-1/4″ NPT
Shaft Rotation Top of pulley towards manifold
Key Component Material
Manifold Machined Stainless Steel
Plungers Solid Ceramic Oxide
Valves Duplex Steel / Plastic Retainer
Seals Nitrile With Fabric Reinforcing
Gear End Spheroidal Cast Iron

Click the image to enlarge


HORSEPOWER SPECIFICATIONS

RPM GPM 800 PSI 1000 PSI 1500 PSI 2000 PSI 2600 PSI
300 16.0 9.1 11.4 17.1 22.9 29.7
400 22.0 12.6 15.7 23.6 31.4 40.9
500 27.0 15.4 19.3 28.9 38.6 50.1
600 33.0 18.9 23.6 35.4 47.1 61.3
700 38.4 21.9 27.4 41.1 54.9 71.3

Horsepower Requirements

The ratings shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.

We recommend a 1.15 service factor be specified when selecting an electric motor as the power source. To compute specific pump horsepower requirements use the following formulas:
Electric HP = (GPM X PSI)/1450
as HP = (GPM X PSI)/1100


*Engine power varies based on horizontal or vertical orientation, as well as by makes and models from each manufacturer.


REPAIR KITS

ITEM# PART# DESCRIPTION Qty.
Plunger Packing Kit – Part #09220
38A 13156 O-Ring 3
38B 13158 O-Ring 3
39A 07223 Compact Ring 3
42 07711 V-Sleeve 6
41 07721 O-Ring 3
Oil Seal Kit – Part #09221
32 07624 Radial Shaft Seal 3
32A 07625 Shaft Seal 3
33A 07627 O-Ring 3
Inlet Valve Kit – Part #09222
51A 13163 Valve Seat 1
51C 13164 Valve Plate 1
51D 07732-0100 Valve Spring 1
51F 13166 Support Ring 1
51G 07266 O-Ring 1
56C 13168 Support Ring 1
56D 07653 O-Ring 1
Discharge Valve Kit – Part #09223
51A 13163 Valve Seat 1
51C 13164 Valve Plate 1
51F 13166 Support Ring 1
51G 07266 O-Ring 1
51D 07732 Valve Spring 1
56A 07658 O-Ring 1
56D 07635 Support Ring 1

Repair Kits Available

The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.

PUMP CATEGORIES:
Service & Repair

Giant provides service on each pump and accessory that we sell. Many basic repair procedures are covered in the Giant repair manual. For all other questions on service or repair needs please contact your local Giant distributor.