In the PMSS system, a resilient material is inserted into the metal seat holder to provide a soft seating action in addition to the metal to metal seating between the ball and the seat rings. The flexible soft sealing in the seating rings is first effective at low pressure ranges.
900# Flanged Ball Valve, Split Body, Multi-Seal Seats, Rugged Locking Device Standard, Flanged Ends Raised Face, RTJ. Flanged Ball Valve Manufacturers in China.
12 Inch Ball Valve Class 900, Fire Safe Tested with Emergency Grease Seal, API 6D, ASME B16.34, Get An Easy Quote. Made in China.
DN500 Ball Valve, Trunnion Ball Valve, Full Pressure Rating, Carbon or Stainless Steel, DN500 Ball Valve Manufacturers in China.
British Standard Ball Valve, BS EN ISO 17292, BS 5351, API 598/BS EN 12266-1 Tested. Get and Easy Quotation from British Standard Ball Valve Manufacturers.
Flanged Ball Valve, Two Piece Body, Anti-blow out, Locking Handle, Full Bore. Flanged Ball Valve Manufacturers in China.
Metal Seated Floating Ball Valve, High Temperature, Abrasive Application, Seat: Ni-Cr Alloy, Stellite, WC, Design: BS5351 and EN ISO 17292, API 6D, Metal Seated Floating Ball Valve Manufacturers in China.
Trunnion Mounted Ball Valves as per API 6D, ISO 14303. Fire Safe, Anti-static, Durable Ball Valves.
API 6D Ball Valve Manufacturers in China.

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