This solenoid valve is used in a wide range of applications, suitable for piping in water, air, oil and low viscosity non-corrosive fluid applications. Working mode:Normally closed electric solenoid valve, open with power on, close with power off. Direct-acting solenoid valve opening structure, zero differential pressure opening valve. Diaphragm type seal, sensitive action, reliable opening and closing. The valve body is made of high quality brass, solid, pressure resistant, corrosion resistant, long service life. Parameters:Pipe diameter- 3/4" thread diameter- 20mm flow diameter- 16mm, working voltage AC220., Manufacturer: WANGCL