Normally closed solenoid valves open when the electrical coil is energized. They are ideal for water, air, light oil, noncorrosive and non-explosive liquids. DEMA offers a number of different closed solenoid valves including mini diaphragm, diaphragm, high pressure, pilot-piston, direct acting manifolds and direct acting for special purposes and corrosive liquids. DEMA solenoid valves are constructed to insure long, trouble free life. They employ proven design features for reliable performance on all applications.