Supra Bellows Valve
Low pressure bellows valve. Operating range -270°C to +80°C cryogenic.
Key features
- Bellows valve for liquid helium and hydrogen
- Service from -270 to +80 C
- Seat sizes 8 to 50 mm, 15 to 25 bar
- Thermally insulated, ready for vacuum installation
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Request a quoteDownload data sheetA stop globe valve with replaceable bellows sealing for the lowest cryogenic temperatures, rated from -270 to +80 C and recommended for liquid helium and liquid hydrogen, with vacuum, pure and ultra pure, combustible, oxidising, toxic, corrosive, radioactive and noble gases or liquids all within its media list. Five seat sizes from 8 mm at Cv 0.78 and 15 bar to 50 mm at Cv 34.1 and 20 bar, the 12, 20 and 32 mm sizes rated 25 bar. Thermal insulation, ready for vacuum installation, cryogenic extension, helium leak tested on every valve, serial numbered, degreased for oxygen, electropolished finishes, manual or pneumatic actuation. AISI 316L body and bellows, seat PCTFE or Vespel.
Specification
| Orifice | 8 / 12 / 20 / 32 / 50 mm seat sizes |
|---|---|
| Maximum Inlet Pressure | 15 bar (8 mm), 25 bar (12, 20, 32 mm), 20 bar (50 mm) |
| Cv | 0.78 / 2.7 / 4.81 / 15 / 34.1 by seat size |
| Temperature | -270 to +80 C |
| Body Material | AISI 316L stainless steel |
| Seat Material | PCTFE or Vespel |
| Technology | bellows sealed stop globe valve, low cryogenic, manual or pneumatic |
