Applies to nominal pipe sizes (NPS) 2 inches and smaller .
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Covers steel and alloy valves NPS 2 (nominal pipe size) and smaller, with pressure ratings up to 15,000 psi ( Applies to nominal pipe sizes (NPS) 2 inches and smaller
: Covers steel and alloy valves with a Nominal Pipe Size (NPS) 2 and smaller . with pressure ratings up to 15