Characteristics Country of manufacture China Type of connection Threaded Solenoid valve KEI The solenoid shut-off valve is designed to automatically turn off the gas supply to internal gas pipelines and gas equipment in residential and public buildings. to operate the valve. The valve is normally open. Threads internal 1/2 inch (DN15A). Control pulse 12V. This valve is in the standby state in the open state, without consuming any energy. When a power pulse is applied to it, the valve immediately switches to the closed state. It remains in this state until the button is returned to its original state.