Valve Sizing: Flow Calculations
For CV calculation use this basic liquid flow formula.
Specific Gravity for Common Fluids (SG)
| Water | 1.000 |
| LN2 | 0.808 |
| LH2 | 0.071 |
| LHe | 0.125 |
| LAr | 0.400 |
| LO2 | 1.140 |
Flow Coefficient Table for Standard Cryogenic Valves
Find the flow coefficient for Cyocomp standard valves by size and body style for your convenience when designing your cryogenic system.
C2000 Series & C3000 Series Cryogenic Valves CV
1/2″ Valve Size
Globe Body: 2.6 CV
Right Angle Body: 5.7 CV
Y-Pattern Body: 5.6 CV
See all C2000 1/2″ cryogenic valves
See all C3000 1/2″ liquid helium valves
1″ Valve Size
Globe Body: 16.3 CV
Right Angle Body: 28.6 CV
Y-Pattern Body: 25 CV
See all C2000 1″ cryogenic valves
See all C3000 1″ liquid helium valves
C2000 Series Cryogenic Valves CV
1-1/2″ Valve Size
Globe Body: 31 CV
Right Angle Body: 37 CV
Y-Pattern Body: 42 CV
See all C2000 1-1/2″ cryogenic valves
2″ Valve Size
Globe Body: 42.3 CV
Right Angle Body: 54 CV
Y-Pattern Body: 59.4 CV
See all C2000 2″ cryogenic valves
C5000 Series Cryogenic Valves CV
1/2″ Valve Size
Globe Body: 1.1 CV
Right Angle Body: 2.3 CV
Y-Pattern Body: consult factory
See all C5000 cryogenic valves
Joe is a product manager for Cryofab. After studying sales and marketing at Providence College, Joe joined Cryofab in 2021 to assist in managing the Cryocomp product line. With a focus on valves and evacuation components, Joe is happy to be a resource for any cryogenic related questions or inquiries.