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
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