Skip to main content
Featured Image for CLP121A-4000

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 stainless steel 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

Specification US Metric
Flow15.9 GPM60 L/min
Maximum Discharge Pressure1740 PSI120 bar
Crankshaft Speed500 RPM
Power19.1 HP14.2 KW
Inlet Port Size(3) 1-1/2" BSP
Discharge Port Size(3) 1" BSP
Plunger Diameter1.42 in.36 mm
Stroke1.65 in.42 mm
Maximum Inlet Pressure870 PSI60 bar
Crankshaft Diameter35 mm
Crankshaft RotationTop of Pulley Towards Manifold
Crankshaft MountingEither Side
Crankcase Oil Capacity US101 fl. oz. 3.0 L
Weight119 lbs.54 kg
Manifold Material Stainless Steel
Crankcase Material Spheroidal Cast Iron
Plunger Material Solid Ceramic Oxide
Valve Material High Grade Stainless Steel
Seal Material Rope Packing/Teflon with EPDM O-Rings
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.
Plunger Packing Kit – Part #CP09716
36 CP13291-0020 Leakage Seal 3
38 CP07140-0003 O-Ring, EPDM 3
40 CP06917 V-Sleeve 9
40A CP06916 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

Horsepower Specifications

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

Images Open in new Window/Tab

  • Dimensional Drawing (Side) Open
  • Dimensional Drawing (Front) Open
  • CLP121A-4000 Exploded View
  • CLP121A-4000 Parts List
  • CLP121A-4000 Torque Specifications


Documents open in new window/tab.

  • Giant Industries Limited Warranty
  • CLP121A-4000 Installation Instructions
  • CLP121A-4000 Repair Instructions
  • Troubleshooting Guide

Sample Pump

Our Company

For 50 years, Giant Pumps has offered the most dependable positive displacement high-pressure triplex pumps available. Designed and built to the highest quality standards, customers count on Giant Pumps products to keep their equipment running. Every design detail of Giant Pumps products is optimized for long-life and reliable performance, making Giant Pumps the most trusted name in high-pressure pumps and systems.

Learn More

Join Our Newsletter

Get the latest updates from Giant Pumps delivered right to your inbox!

Subscribe to the Giant Newsletter

Back to Top