GIS/V9-1: Specification for the performance requirements for slamshut valves for governor installations with inlet pressures in the range greater than 75 mbar to not greater than 7 bar Part 1 - Spring | The Institution of Gas Engineers and Managers (IGEM)

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Apr 2025

by Future Energy Networks (FEN)

GIS/V9-1: Specification for the performance requirements for slamshut valves for governor installations with inlet pressures in the range greater than 75 mbar to not greater than 7 bar Part 1 - Spring

This Gas Industry Standard (GIS) specifies general design, materials and performance testing of spring-operated diaphragm slamshut valves of both stand-alone and integral types with inlet pressures in the range greater than 75 mbar to not greater than 7 bar, and temperatures in the range –20 ºC to 60 ºC inclusive.

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