231 Series - Stainless Steel Globe Valve
For Hydrogen Service
Features:
- Top Entry: Rugged stainless steel * soft seated cryogenic globe valve. This valve can be permanently installed in the line and serviced from the top
- Soft Seated: PCTFE Seat provides a virtually bubble tight seal. Stem/Globe assembly is replaceable
- Construction: One piece investment cast bonnet eliminates welded joint in topworks
- Stem Packing: Proprietary Goddard system utilizing GRAFOIL®** flexible graphite
- Sizes: ¼” through 1½” (6mm through 40mm)
- Ends: Socket weld, Butt weld
- Service: Liquified and Gaseous hydrogen service only (see series 232 for non-hydrogen service)
- Temperature Rating: -425°F to 150°F (-254°C to +65°C)
- Pressure Rating: (Cold, Non-shock)
300 PSIG (20 Bar)
400 PSIG (27 Bar)
*Stainless steel ASTM A351-CF3M (316L)
**GRAFOIL® is a UCAR Carbon Company development
PED Approved, Approved for US and Canada
Designed to ASME B16.34
A rugged construction and easy access are design features which provide minimum installation and maintenance cost while maintaining superior performance and operator safety. This valve replaces higher cost bellows-seated valves in many applications. The proprietary Goddard GRAFOIL® stem packing system provides excellent performance when the valve operates in liquid hydrogen service.
