Cold check valves

The valves of the CCV line are integrated into cryogenic systems in cryogenic lines. They therefore typically possess welding ends and are built into the cold box. Typical use ranges are temperatures up to 4K and pressure ratings up to PN25. The valves are characterised by a very low opening pressure.

To prevent unwanted oscillations in the system, the check valves can also be designed with a small seat bypass bore.

Cracking pressure
EAC approval
Ex approval
Temperature range of fluid
Nominal pressure PN
Nominal diameter DN
Shipbuilding approval
Typical fluids
Further approvals
Housing material
CCV PN25
  • Nominal diameter DN 6 … 200mm (1/8 … 8")
  • Nominal pressure PN ≤ 25bar
  • Temperature range of fluid 1 … 323K (-272 …+50°C)
  • Cracking pressure 23 … 65mbar
CCV PN40
  • Nominal diameter DN 6 … 50mm (1/8 … 2")
  • Nominal pressure PN ≤ 40bar
  • Temperature range of fluid 1 … 323K (-272 …+50°C)
  • Cracking pressure 23 … 65mbar

CCV without bypass bore

CCV-v PN25
  • Nominal diameter DN 6 … 200mm (1/8 … 8")
  • Nominal pressure PN ≤ 25bar
  • Temperature range of fluid 1 … 323K (-272 …+50°C)
  • Cracking pressure 23 … 65mbar
CCV-v PN40
  • Nominal diameter DN 6 … 50mm (1/8 … 2")
  • Nominal pressure PN ≤ 40bar
  • Temperature range of fluid 1 … 323K (-272 …+50°C)
  • Cracking pressure 23 … 65mbar

CCV with bypass bore

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Specific allocation
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