In comparison to the conventionally austenitic stainless steel grades, the forged duplex stainless steel trunnion mounted ball valve have a much higher tensile strength. The combination of good mechanical properties in combination with good weldability is the reason why 2205 Duplex Ball Valves can be used in an as welded condition.
Material Specifications
- Body/bonnet: Ferritic-Austenitic Stainless Steels F50, F51, F53, F54, F55, 57, F60, F65, F68, F69
- Ball: Ferritic-Austenitic Stainless Steels F50, F51, F53, F54, F55, 57, F60, F65, F68, F69
- Stem/Trunnion: Ferritic-Austenitic Stainless Steels F50, F51, F53, F54, F55, 57, F60, F65, F68, F69
- Seat Retainer: Ferritic-Austenitic Stainless Steels F50, F51, F53, F54, F55, 57, F60, F65, F68, F69
- Seal ring: PTFE / RPTFE / NYLON / DEVLON / PEEK / metal to metal
- Main features: 1. Solid ball, 2. Anti-fire safe design, 3. Anti-static device, 4. Free leakage of body Sealed construction, 5. Low torque in operation, 6. Double block & bleed (DBB), 7. Emergency sealing, 8. Extension stem on request, 9. Automatic body cavity relief, 10. Various driving types: gear, lever, electric, hydraulic, pneumatic, gas over oil.