GP7124A-4000

A German-made reciprocating triplex plunger pump.

Features:
Spheroidal cast iron crankcase with vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; stainless plungers with hardened metal coating; aramid packing; stainless steel valves and machined stainless steel manifold.

  • GP7124A-4000 Exploded View
  • GP7124A-4000 Parts List
  • Giant Industries Limited Warranty
  • GP714A-4000 Installation Instructions
  • GP7124A-4000 Repair Instructions
  • Troubleshooting Guide

SPECIFICATIONS

U.S. Metric
Max Flow 12.7 GPM 48.0 L/min
Max Discharge Pressure 7250 PSI 500 bar
Max Speed 750 RPM
Inlet Pressure 58 PSI 4 bar
Plunger Diameter 0.94″ 24 mm
Stroke 2.05″ 52 mm
Max Temp @ 1000 RPM 140 °F 60 °C
Crankshaft Diameter 48 mm
Crankcase Capacity 1.6 gal 6.0 L
Weight 375 lbs. 170 kg
Inlet Ports (2) 1-1/4″ BSP
Discharge Ports (2) 3/4″ BSP
Shaft Rotation Top of Pulley Towards Manifold
Shaft Mounting Either Side
Volumetric Efficiency @ 700 RPM  89%
Mechanical Efficiency @ 700 RPM  83%
Key Component Material
Manifold Machined Stainless Steel
Plunger Stainless with Hardened Metal Coating
Valve Stainless Steel
Seals Aramid Packing
Gear End Cast Iron

Click the image to enlarge


HORSEPOWER SPECIFICATIONS

RPM GPM 3000 PSI 5000 PSI 6000 PSI 7250 PSI
300 5.1 10.5 17.5 21.0 25.4
400 6.8 14.0 23.4 28.0 33.9
550 9.3 19.3 32.1 38.5 46.6
600 10.2 21.0 35.0 42.0 50.8
650 11.0 22.8 38.0 45.5 55.0
700 11.9 24.5 40.9 49.0 59.3
750 12.7 26.3 43.8 52.6 63.5

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 #09224
38B 06750 Leakage Seal 3
38C 06667 O-Ring 3
39A 07150 O’ring 3
39B 06954 Support Ring 3
39C 07332 O-Ring 3
39D 07683 Support Ring 3
42 07685 Packing 6
43 07718 Support Ring 6
44 06956 Guide Ring 3
46 07169 Seal Ring 3
Plunger Packing Kit #09583 (pumps manufactured before 7/01)
39A 12055 O-Ring 6
39B 07693 Support Ring 6
40 13400 Grooved Seal 3
41 07718 Support Ring 3
42 07685 Packing 3
43 13410 Teflon Support Ring 3
Inlet Valve Assembly Kit – Part #09702
51B 05193 O-Ring 2
51C 05194 Inlet Valve Seat 1
51D 06761 Valve Plate 1
51E 06762 Valve Spring 1
58A 07700 O-Ring 1
58B 07693 Support Ring 1
Discharge Valve Assembly Kit – Part #09703    
51B 05193 O-Ring 1
51D 06761 Valve Plate 1
51E 06762 Valve Spring 1
52C 05195 Discharge Valve Seat 1
58A 07700 O-Ring 1
58B 07693 Support Ring 1
Oil Seal Kit – Part #09221
32 07624 Radial Shaft Seal 3
33A 07627 O-Ring 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.