AOMAG Normally Closed Electric Solenoid Valve; 3/4?ports, brass body, Viton seal, 12 volt DC, for air, water, or fuelAOMAG Solid normally closed (N/C) electric solenoid valve is constructed with a durable brass body, two-way inlet and outlet ports with three-eighth inch (3/4") female threaded (NPT) connections, and heat and oil resistant Viton gasket.The direct current coil energizes at 12 volts DC;voltage range +- 10%. 18 Watt power rating.Direct lift valve operates from 0 PSI to a maximum pressure of 145 PSI (0 MPa to 1.0 MPa). Operational pressure range for water: 0 to 128 PSI; for oil: 0 to 99 PSI; for air or gases: 0 to 128 PSI.(4 mm) flow aperture permits a unidirectional flow capacity of 0.6 gallons per minute (GPM) of water at 60oFwith a pressure drop of 1 PSI (0.6 Cv).Operational temperature range (steady state) -5 to 80 Celsius. It is also designed to withstand short exposures to 14 to 248 degrees Fahrenheit; -10 to +120 degrees Celsius. Suitable for outdoor use; not for use underwater.Suitable for use with hot or cold water, gas, air, very low viscosity fluids (< 20 cst), oils and hydrocarbons, e.g., gasoline, kerosene, or diesel fuel. Valve is not intended to be energized continuously for more than 8 hours. This can lead to burnout of the coil, and malfunctioning of the valve. In cases where this is necessary, it is recommended user install a computer fan to keep valve cool.Customers chose this general purpose valve for: do-it-yourself projects, moderate temperature applications, harsh chemicals, flow control for irrigation systems, reverse osmosis system, electronic control of tank selection, water line, or motorcycle air shocks.Manufactured in China. Model: USS2-00006. Quality and/or conformity managed in accordance with standards:ISO 9001:2000; GB/T 19001:2000; European EN61000-6-1:2001 and EN61000-6-3:2001.