A solenoid valve is a combination of two basic functional units including, a solenoid with its core and a valve body containing one or more orifices. Once the solenoid gets energized or de-energized then, the flow through an orifice is shut. It might be allowed by the movement of the core. Redcliffe not only looks into the installation as well as the repair aspects of Gas Solenoid Valve 120V 1/2’’ NPT but also manages to solve your queries.