Liquid Helium Valve Model C3081-A21

1.0" LHe Vacuum Jacketed Globe Valve, Pneumatic Actuated Operation

  • 1" IPS Pipe Size Cryogenic Valve
  • Pneumatic Actuated Operation
  • Vacuum Jacket
  • Globe Style Body

cryogenic helium valve

 

Product Drawing

Features

  • 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
  • Mli On Jacketed Valves 20 Layers
  • Brass Plug
  • Plug To Stem Stabilizer
  • KEL-F Seat Seal w/ Locked Thread

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
  • Options:
    • Cold Box Jacket
    • Manual Operation
    • Relief Valve
    • Contoured Flow Plug

Applications

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

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