Liquid Helium Valve Model C3082-C23A

Features

• Pneumatic Actuator (Fail Closed)
• 1–P Positioner
• Stainless Steel Stem & Threads
• Redundant Stem Seal
• Cryogenic Stem Packing
• Brass Bonnet
• Redundant Cryogenic Bonnet Seal
• Bonnet Purge Port (Thermal Relief Location)
• All Stainless Steel Body & Stem
• Tight Fit Stem
• Brass Plug
• Plug to Stem Stabilizer
• KEL-F Seat Seal w/ Locked Thread
• Flow Plug (Equal %)

Technical Data

• 150 PSIG Working Pressure
• 300 PSIG Rating
• Seat Seal Bubble Tight @ 150 PSIG
• Packing Mass Spec Tested @ 1 x 10 ^-5 Torr Vacuum
• Leak Rate Below 1 x 10 ^-9 CC GHe/SEC
• Heat Leak: 6.26 BTU/HR to 20° k
• Cooldown Mass: 3.80 Pounds

Applications

• Cold Boxes
• Vacuum Jacketed Piping
• Helium Transfer Lines
• Helium Liquefiers