A German-made reciprocating triplex plunger pump for liquid CO2 applications.

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; Rope packing/Teflon seals with EPDM O-rings; stainless steel valves and cast aluminum bronze manifold.

WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to

  • CLP121A Exploded View
  • CLP121A Parts List
  • CLP121A Torque Specifications
  • Limited Warranty
  • CLP121A Installation Instructions
  • CLP121A Repair Instructions
  • Troubleshooting Guide


U.S. Metric
Maximum Flow 15.9 GPM 60.0 L/min
Maximum Pressure 1740 PSI 120 bar
Crankshaft Speed 500 RPM
Inlet Pressure 580 PSI 40 bar
Plunger Diameter 1.42″ 36 mm
Stroke 1.65″ 42 mm
Crankshaft Diameter 35 mm
Crankshaft Rotation Top of Pulley Towards Manifold
Crankshaft Mounting Either Side
Inlet Ports (3) 1-1/2″ BSP
Discharge Ports (3) 1″ BSP
Crankcase Oil Capacity 101 fl. oz. 3.0 L
Weight 119 lbs. 54 kg
Key Component Material
Manifold Aluminum Bronze
Plungers Solid Ceramic Oxide
Valves High Grade Stainless Steel
Seals Rope Packing/Teflon with EPDM O-Rings
Gear End Spheroidal Cast Iron

Click the image to enlarge


RPM GPM 500 PSI 1000 PSI 1500 PSI 1740 PSI
200 6.36 2.2 4.4 6.6 7.6
300 9.54 3.3 6.6 9.9 11.5
400 12.7 4.4 8.8 13.1 15.2
500 15.9 5.5 11.0 16.5 19.1

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

Gas HP = (GPM X PSI)/1100

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


Plunger Packing Kit – Part #CP09716
36 CP13291-0020 Leakage Seal 3
38 CP07140-0003 O-Ring, EPDM 3
40 CP06917 V-Sleeve 9
40A CP06918 V-Sleeve, Teflon 6
Valve Assembly Kit – Part #CP09608
44A CP07150-0003 O-Ring, EPDM 9
46A CP07064 Valve Seat 6
46B CP07063 Valve Plate 6
46C CP07062-0100 Valve Spring 6
46D CP07066 Spacer Pipe 6
Oil Seal Kit – Part #CP09577
31 CP07133 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.

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.