Liquid Helium Valve Model C3042-A23A

1/2" LHe Valve with Pneumatic Actuator


Features

  • Pneumatic Actuator Fail Closed
  • Redundant Stem Seal
  • Cryogenic Stem Packing
  • Brass Bonnet
  • Redundant Cryogenic Bonnet Seal
  • Bonnet Purge Port (Thermal Relief Location)
  • All Stainless Steel Body & Stem
  • Cold Box Cuff
  • MLI on Jacketed Valves
  • Low Thermal Conductivity Stem & Support Tube
  • Brass Plug
  • Plug to Stem Stabilizer
  • Equal % Flow Plug

Technical Data

  • 150 PSIG MAWP
    225 PSIG Proof
  • Seat Seal Bubble Tight @ 150 PSIG
  • Packing Mass Spec Tested @ 1 x 10 -5 Torr
    Leak Rate Below 1 x 10 -8 CC GHe/SEC.
  • Heat Leak: 3.5 BTU/HR
  • Cooldown Mass: 0.75 Pounds

Applications

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