BS 5351 Ball Valves
BS 5351 Ball Valves: trunnion mounted ball valves or seat-supported ball valves are available in one-piece or split-body construction, with full or reduced bore.
Straightway steel ball valves have specified wall thickness, an antistatic feature, and a fire-tested design.
BS5351: Steel ball valves for the petroleum, petrochemical, and allied industries.
BS 5351 Standard specifies the valve seat and body pressure/temperature ratings and the design, including materials, dimensions, operation,performance, testing, and marking of ball valves.
End Connections:
Flanged End
Butt Weld End
Socket Weld End
Threaded End
Features:
Anti-static feature
A feature incorporated in the design of the valve that ensures electrical continuity between the body, ball, and stem of the valve.
Fire-tested design
A design that is capable of complying with API 607/API 6FA.
Anti-blow-out stem
A design that prevents the valve stem from being blown out of the body if the stem seal retainer, such as a gland, is removed while the valve is under pressure.
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Valve type (ball, gate, globe, check etc.), valve size, pressure class, valve material, and end connection (flanged, butt welding etc.)