Soleniod Valve (12V) 2-way normally closed solenoid process valve is to control On/Off of air, inert gas, liquid, and vacuum. This industrial solenoid valve has one 1-1/2″ inch NPT inlet and one 1-1/2″ inch NPT outlet port. Valve stays close when the coil is de-energized, and it opens when energized. 2BCW series valve is a zero differential valve which can be operated at 0 PSI (Vacuum) and it can be mounted in any position. 2BCW Series industrial solenoid valve comes with a ED 100% encapsulated coil which suitable to operate in continuous service and constantly energized.