LP122A-3100

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 nickel-aluminum-bronze manifold.

  • LP122A-3100 Exploded View
  • LP122A-3100 Parts List
  • Giant Industries Limited Warranty
  • LP122A-3100 Installation Instructions
  • LP122A-3100 Repair Instructions
  • Troubleshooting Guide

SPECIFICATIONS

U.S. Metric
Max Flow (Continuous) 35.6 GPM 134.7 L/min
Max Discharge Pressure (Continuous) 1300 PSI 90 bar
Max Speed (Continuous) 800 RPM
Inlet Pressure 90 PSI 6.2 bar
Plunger Diameter 1.65″ 42 mm
Stroke 1.65″ 42 mm
Max Temp 160 °F 71 °C
Crankshaft Diameter 1.38″ 35 mm
Crankcase Capacity 116 fl. oz. 3.43 L
Weight 116 lbs. 52.6 kg
Inlet Ports (2) 1-1/2″ BSP
Discharge Ports (2) 1″ BSP
Shaft Rotation Top of Pulley Towards Manifold
Volumetric Efficiency @ 800 RPM 0.96 0.96
Mechanical Efficiency @ 800 RPM 0.85 0.85
Key Component Material
Manifold Aluminum Bronze
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 600 PSI 800 PSI 1000 PSI 1300 PSI
500 22.3 9.3 12.4 15.5 20.1
555 24.7 10.3 13.7 17.2 22.3
640 28.5 11.9 15.8 19.8 25.7
695 30.9 12.9 17.2 21.5 27.9
750 33.4 13.9 18.6 23.2 30.2
800 35.6 14.8 19.8 24.7 32.1

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 #09575
35A 06619 O-Ring 3
36 13415 Grooved Ring 3
36B 06174 Drip Shield 3
40 07745 Sleeve 6
Valve Assembly Kit – Part #09576
44 07748-0300 Valve Seat 6
44A 07150-0001 O-Ring 6
45 07749-0300 Valve Plate 6
46 07750 Valve Spring 6
47 07752 Spring Tension Cap 6
48A 06577 O-Ring 6
Oil Seal Kit – Part #09577
31 07133 Radial Shaft 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.