Double Block and Bleed Ball Valve
Product Description
MATERIALS
BODY: Carbon steel, Stainless steel, Low temperature carbon steel, Duplex, Special Alloys,... Other materials under request
SOFT SEATS : PTFE, RPTFE, PEEK, DEVLON, NYLON,... Other materials under request
METAL SEAT:Tungsten Carbide(TC), Stellited
, Ni60...Other materials under request.
TRIM: A105+EP,304,316, 410, MONEL,... Other materials under request
DESIGN STANDARDS
ASME Standards:
B1.20.1Pipe Threads,General Purpose(Inch)
B16.10Face-to-Face and End-to-End Dimensions of Valves
B16.25Buttwelding Ends
B16.11Forged Fittings, Socket-Welding and Threaded
B16.5Flanged Fittings and Pipe Flanges
B16.47Large Diameter Steel Flanges
API Standards:
6DSpecifications for Pipeline valves
598Valve Inspection and Testing
607Fire test for soft-seated quarter-turn valves
6FASpecification for Fire Test for Valves
MSS Standards:
SP-55Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Visual Method for Evaluation of Surface Irregularities
SP-54Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Radiographic Examination Method
SP-53Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Magnetic Particle Examination Method
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