VALVES FOR NUCLEAR APPLICATION
INSTRUMENTATION BELLOW SEAL / GLAND SEAL THREE VALVE MANIFOLD
Three valve manifold with Bellow Seal and Gland Seal type of Size DN 10
The integral body, trim, stem seat and all wetted parts of valves is made of stainless steel type F-316L in accordance with ASTM A-182 for Bellow Seal Type and Gland Seal Type.
The integral body, trim, stem seat and all wetted parts of valves is made of Titanium Grade-2 as per ASTM B 348 for Gland Seal Type used for sea water application.Service life is minimum of 40 years. The frequency of preventive maintenance of the valve will not be earlier than 15000 hours (about two years) of plant running.
PROTOTYPE TESTING FOLLOWED:
- Bellow Cyclic Test
- Seismic qualification
- Non-Seismic vibration test.
- Air Crash Test (Dynamic Load / Shock wave Test).
- Radiation Aging
- Accelerated Thermal Aging Test.
- Functional Testing.
- Hydrostatic test (As per ASTM standard)
- Air Leak test (Class-.4)
- Helium leak test (Class -6)