Cryogenic Valve Model C2121-M21

Features

• Pneumatic Actuator Air To Open
• Stainless Steel Body, Stem and Jacket
• Redundant Stem Seal
• Cryogenic Stem Packing
• Brass Bonnet
• Redundant Cryogenic Bonnet Seal
• Bonnet Purge Port (Thermal Relief Location)
• Tight Fit Stem
• MLI on Jacketed Valves
• Brass Plug
• Plug To Stem Stabilizer
• KEL-F Seat Seal w/ Locked Thread Insert
• Contoured Flow Plugs Available

Technical Data

• 300 PSI MAWP (Maximum Operating Pressure)
• Seat Seal Bubble Tight @ 150 PSIG
• Packing Mass Spec Tested @1x10^-5 Torr
• Vacuum Leak Rate Below 1x10^-9 CC GHe/SEC
• Heat Leak: 27.1 BTU/HR To 20° k
• Cooldown Mass: 13.5 Pounds
• Options:
  • Cold Box Jacket
  • Pneumatic Actuators
  • Purge Ports
  • Flow Plugs

Applications

• Vacuum Jacketed Piping
• Cold Boxes
• Manifold and Tank Systems
• Liquid Nitrogen, Helium, Hydrogen, Argon, and Oxygen Service (With Proper Cleaning)