- 1" LHe Globe Valve
- Cold Box Cuff Or Jacketed
- Manual Operation
- Globe Body
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Features
- Redundant Stem Seal
- Cryogenic Stem Packing
- Brass Bonnet
- Redundant Cryogenic Bonnet Seal
- Bonnet Purge Port (Thermal Relief Location)
- Stainless Steel Body and Stem
- Cold Box Cuff (Full Jacket 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
- 150 PSIG MAWP
- 225 PSIG Proof
- Seat Seal Bubble Tight @ 150 PSIG
- Packing Mass Spec Tested @ 1x10-5 TORR
- Leak Rate Below 1x10-8 CC GHe/SEC
- Seat Seal Helium Bubble Tight Tested @ 150 PSIG @ Ambient Temperature
- Heat Leak: 6.25 BTU/HR (To 20°K)
- Cooldown Mass: 3.80 Pounds
- Options:
Bonnet Purge Port
Full Lower Jacket
Pneumatic Actuator
Applications
- Vacuum Jacketed Piping
- Cold Boxes
- Helium Transfer Lines
- Helium Liquefiers
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