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

  • Pneumatic Actuator Air to Open
  • Redundant Stem Seal
  • Cryogenic Stem Packing
  • Brass Bonnet
  • Redundant Cryogenic Bonnet Seal
  • Bonnet Purge Port (Thermal Relief Location)
  • Stainless Steel Body & Stem
  • Full Vacuum Jacket (Cold Box Cuff Available)
  • MLI On Jacketed Valves
  • Low Thermal Conductivity Stem and Support Tube
  • Brass Plug
  • Plug To Stem Stabilizer
  • KEL-F Seat Seal w/ Locked Thread Insert
  • Contoured Flow Plug Available

Technical Data

  • 300 PSIG MAWP
  • 450 PSIG Proog
  • 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: 6.25 BTU/HR (1.8 WATTS)
  • Options:
    • Bonnet Purge Port
    • Cold Box Jacket
    • Manual Operation
    • Flow Plug

Applications

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

Tags: