Cryogenic Quench Relief Control Valves

SERVICE RANGE:

• Temperature: -457.6 to 176ºF (-272 to 80ºC)

VALVE FUNCTION:

• Protect the superfluid helium enclosures of superconducting magnets against over-pressure resulting from resistive transitions (Quench) as well as some of the cryogenic lines (QRL).

DESIGN FEATURES:

• Superfluid helium service (Temperature: 1.9 K)
• Set pressure : 17 bar (full open pressure : 20 bar)
• Angle body
• Cold box adaptation
• Single or double bellows sealed
• Remote control actuation (on/off function)
• Flow coefficient : Kv 30
• No risk of icing or jamming when operating
• Downstream pressure does not affect the set pressure
• Very low heat inleak
• Resistant to radiation
• Typical fluid : liquid He, liquid Ox, liquid H2, liquid N2