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Pressure Self-sealing Check Valve

Applicable criteria:

Steel Stop Back Valve, API 594/API 6D

Steel Stop Back Valve, ISO14313

Steel valves, ASME B16.34

Structure Length, ASME B16.10

Flange end, ASME B16.5

Inspection and testing, API 598/API 6D

Design instructions:

PSB, pressure self-sealing valve cover

Elastic disc, fully oriented

Replaceable seat ring

Flange end or butt welding end

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