CIS completely manufacture and repair a number of high-pressure cold ends for a range of pumping applications.
All cold ends can be matched with corresponding power ends. Please follow the link here to the power end page.
Below is a list of the most frequently requested cold ends, however we have a database of many others. Please contact us if your cold end is not on this list, or you would like a modified cold end.
Oil Field Cold Ends
CR1125
The CR1000 Cold End is an oil industry standard cold end for use with 1.38″ stroke pumps and requires a boost pump. This cold end is similar to CS&P and Hydrarig 1.250″ Cold Ends.
Piston Diameter: 1.25″
Max. Discharge Pressure: 15,000 PSI (1034 Bar)
Typical Rate (3 cyl): 2000 SCFM (57 NM3/Min.)
CR2125
The CR2125 Cold End is an oil industry standard cold end for use with 0.905″ stroke pumps and requires a boost pump. It is similar to GMPD 1.250″ Cold Ends.
Piston Diameter: 1.25″
Max. Discharge Pressure: 10,000 PSI (690 Bar)
Typical Rate (3 cyl): 1500 SCFM (42.5 NM3/Min.)
CR4162
The CR4162 Cold End is an oil industry standard cold end for use with 1.375” stroke pumps and requires a boost pump. It is similar to a CS&P or Hydrarig 1.625″ Cold End.
Piston Diameter: 1.625″
Max. Discharge Pressure: 10,000 PSI (690 Bar)
Typical Rate (3 cyl): 3000 SCFM (85 NM3/Min.)
CR5125
The CR5125 Cold End is similar to GUPD 1.25″ Cold End. It is used with well service pumps. This cold end requires a boost pump.
Piston Diameter: 1.25″
Max. Discharge Pressure: 15000 PSI (1034 Bar)
Typical Rate (3 cyl): 2000 SCFM (57 NM3/Min.)
CR5162
The CR5162 Cold End is an oil industry standard cold end for use with 1.375” stroke pumps and requires a boost pump. It is the equivalent of a GUPD 1.625″.
Piston Diameter: 1.625″
Max. Discharge Pressure: 10,000 PSI (690 Bar)
Typical Rate (3 cyl): 3000 SCFM (85 NM3/Min.)
CR5200
The CR5200 Cold End is similar to GUPD 2″ Cold End. It is used with well service pumps. This cold end requires a boost pump.
Piston Diameter: 2.00″
Max. Discharge Pressure: 6000 PSI (428 Bar)
Typical Rate (3 cyl): 5000 SCFM (142 NM3/Min.)
CR6252
The CR6252 Cold End is an oil industry standard cold end for use with 2.25″ stroke pumps and requires a boost pump. It is similar to a Cryomec 2.52″ (64mm).
Piston Diameter: 2.52″
Max. Discharge Pressure: 10,000 PSI (690 Bar)
Typical Rate (3 cyl): 11000 SCFM (311 NM3/Min.)
CR710
The CR710 Cold End is typically used for oil field applications pumping up to 11,000 PSI. This cold end requires a boost pump.
Piston Diameter: 1.0″
Max. Discharge Pressure: 11,000 PSI (760 Bar)
Typical Rate (1 cyl): 500 SCFM (14.16 NM3/Min.)
Typical Rate (2 cyl): 1000 SCFM (28.32 NM3/Min.)
Typical Rate (3 cyl): 1500 SCFM (42.48 NM3/Min.)
CR712
The CR712 Cold End is typically used for oil field applications on 5000 PSI units. It requires a boost pump.
Piston Diameter: 1.2″
Max. Discharge Pressure: 6000 PSI (413 Bar)
Typical Rate (1 cyl): 500 SCFM (14.16 NM3/Min.)
Carbon Dioxide Cold Ends
CD100
The CD100 Cold End is used for carbon dioxide only.
Piston Diameter: 1.37″
Max. Discharge Pressure: 2175 PSI (150 Bar)
Typical Rate (1 cyl): 1.5 – 2 US Gallons Per Min. (5.6-7.5 Litres Per Min.)
Vacuum Jacket Cold Ends
CRV212
The CRV212 Cold End is typically used for cylinder filling air gases.
Piston Diameter: 1.2″
Max. Discharge Pressure: 6000 PSI (413 Bar)
Typical Rate (1 cyl): 150 -300 SCFM (4.25-8.5 NM3/Min.)
CRV410
The CRV410 Cold End is typically used for high pressure nitrogen testing.
Piston Diameter: 1.0″
Max. Discharge Pressure: 11,000 PSI (760 Bar)
Typical Rate (1 cyl): 150 SCFM (4.25 NM3/Min.)
CRV412
The CRV412 Cold End is typically used for oil field applications on 5000 PSI units. It is vacuum insulated and does not require a boost pump.
Piston Diameter: 1.2″
Max. Discharge Pressure: 6000 PSI (413 Bar)
Typical Rate (1 cyl): 1000 SCFM (32.25 NM3/Min.)
CRV825
The CRV825 is typically used for purging operations with a steam vaporiser. It is vacuum insulated and does not require a boost pump.
Piston Diameter: 2.5″
Max. Discharge Pressure: 1500 PSI (104 Bar)
Typical Rate (3 cyl): 8300 SCFM (572 NM3/Min.)
Additional Cold Ends
Rare and Obsolete Cold Ends
- The CR3150 Cold End which is similar to Cryomec 1.500″ Cold End. It is used with well service pumps.
- The CR6200 Cold End is similar to Cryomec 2″ Cold End. It is used with well service pumps.
- The CR7060 Cold End is similar to a Linde HP 60 Cold End. It is used with Halliburton well service pumps.
- The CR7075 Cold End is similar to a Linde HP 75 Cold End. It is used with Halliburton well service pumps.
- The CR8200 Cold End is similar to the LMPD 2″. It is used with CS&P and ACD Power Ends.