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Old red needle valve in oil refinery, otherwise known as an MSS SP-99-2023 instrument valve.
ANSI | Piping | Valves and Fittings

MSS SP-99-2023: Instrument Valves

ByBrad Kelechava August 4, 2023May 21, 2025

Whether employing the use of a needle-shaped plunger, a pivoting ball, or a rotating cylindrically tapered plug, instrument valves are abundant in industry to control…

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