GP5145-5100

A German-made triplex plunger positive displacement pump with reciprocating plungers for belt drive applications.

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 316 stainless steel manifold.

  • GP5145-5100 Exploded View
  • GP5145-5100 Parts List
  • GP5145-5100 Torque Specifications
  • Giant Industries Limited Warranty
  • GP5145-5100 Installation Instructions
  • GP5145-5100 Repair Instructions
  • Troubleshooting Guide

SPECIFICATIONS

U.S. Metric
Max Flow 43.5 GPM 164.6 L/min
Max Discharge Pressure 1450 PSI 100 bar
Speed 750 RPM
Inlet Pressure 145 PSI 10 bar
Plunger Diameter 1.77″ 45 mm
Stroke 1.815″ 46 mm
Max Temp @ 1000 RPM 140 °F 60 °C
Crankshaft Diameter 35 mm
Crankcase Capacity 1.2 Gal 4.6 Liters
Weight 179 lbs. 81 kg
Inlet Ports (3) 1-1/2″ BSP
Discharge Ports (2) 1″ BSP
Shaft Rotation Top of Pulley Towards Manifold
Shaft Mounting Either Side
Key Component Material
Manifold Stainless Steel
Plungers Solid Ceramic Oxide
Valves High Grade Stainless Steel
Seals Nitrile With Fabric Reinforcing
Gear End Spheroidal Cast Iron

Click the image to enlarge


HORSEPOWER SPECIFICATIONS

RPM GPM 500 PSI 750 PSI 1000 PSI 1450 PSI
400 23.2 8.0 12.0 16.0 23.2
500 29.0 10.0 15.0 20.0 29.0
600 34.8 12.0 18.0 24.0 34.8
700 40.6 14.0 21.0 28.0 40.6
750 43.5 15.0 22.5 30.0 43.5

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 #09598
35A 12386 O-Ring 3
35B 08183 O-Ring 3
40 13294 Sleeve 6
40A 06146 Grooved Ring 3
Inlet Valve Assembly Kit – Part #09231-0100
46A 12055 O-Ring 1
46C 13304-0100 Inlet Valve Assembly 1
46D 13306-0100 Valve Plate 1
46E 13307 Valve Spring 1
46F 13308 Spring Tension Cap 1
46G 13309 Spacer Pipe 1
48B 07440 O-Ring 1
Discharge Valve Kit – Part # 09232-0100
47A 13289 O-Ring 1
47C 13313 Discharge Valve Assembly 1
47D 13306-0100 Valve Plate 1
47E 13307 Valve Spring 1
47F 13308 Spring Tension Cap 1
48B 07740 O-Ring 1
Oil Seal Kit – Part #09230
31 13284 Oil Seal 3

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.