A solenoid valve is an electromechanically operated valve. Solenoid valves differ in the characteristics of the electric current they use, the strength of the magnetic field they generate, the mechanism they use to regulate the fluid, and the type and characteristics of fluid they control. Specification: Port Size: 1-1/2" Female NPT Voltage: 24V AC Body Material: Brass Components: Stainless Steel Seal Material: Viton® Diaphragm Orifice Size: 40 mm Temp Range: 15 to 250° F / -10 to 120°C Pressure Range: 0 - 145 PSI (No Minimum) Flow Rate: Cv 29 (Appx 220 GPM @ 60 PSI) Power: 40 Watts / 1.75 Amps Coil Connection: DIN 43650A Response Time: Fast Acting (Less than one second) Package includes: 1 x 2/2 way solenoid valve 1 inch 24 VDC