Importance

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Abstract

A shut-off valve assembly has a main valve module and an electrically-controlled, pneumatically-actuated operator that moves the main valve module between an opened and a closed position. A number of different shut-off valve assemblies are assembled from various components or modules, such as pneumatics modules, switch assemblies, main valve modules, and solenoid valve components. The main valve modules have a variety of sizes and pipe connection styles. In some embodiments, pressurized air is supplied to the pneumatic actuator from pressurized air equipment that is situated in a facility remotely from the shut-off valve apparatus and in other embodiments, an air-delivery module is coupled to the pneumatics module to provide pressurized air to the pneumatic actuator.

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First Claim