U.S. Solid 1/2 in Stainless Steel Solenoid Valve 12V DC Normally Open Viton Seal NPT Female for Water Air Gas Oil — Open-Box, 31% Off

Primary Use and Compatible Media: This 1/2 in normally open solenoid valve controls flow of water, air, natural gas, diesel fuel, kerosene, and low-viscosity oils under 20 cSt, making it suitable for irrigation systems, brewing setups, auxiliary fuel tanks, and sprinkler lines. Electrical Specs and Response Time: Operates at 12V DC with plus or minus 10% tolerance, drawing 1.5 A at 18 W rated power. The valve opens or closes in under one second when energized, with an estimated service life exceeding one million cycles under normal operating conditions. Stainless Steel Body and Viton Seal: The valve body is machined from industrial-grade stainless steel for corrosion resistance across a temperature range of 14 to 248 degrees Fahrenheit (-10 to 120 degrees Celsius). The Viton seal resists gasoline, kerosene, and organic solvents where NBR seals may degrade. Pressure Range and Flow Capacity: Rated 0 to 101 PSI for water and air, 0 to 72 PSI for oil, with a 16 mm flow aperture and 4.8 Cv flow coefficient delivering 4.8 GPM of water at 60 degrees Fahrenheit and 1 PSI pressure drop. Connections are 1/2 in female NPT. Duty Cycle Note and Standards Compliance: This valve is not rated for continuous duty beyond 8 hours energized — the coil reaches up to 80 degrees Celsius under load. Not suitable for strong acids, bases, or wastewater. Compliant with Chinese national standard JB/T7352-2010. The U.S. Solid 1/2 in normally open solenoid valve is designed for engineers, contractors, and DIY builders who need reliable, fast-acting flow control in fluid or gas systems. In its default (de-energized) state, the valve remains open and allows media to flow freely. When 12V DC power is applied, the solenoid coil moves the plunger to close the orifice and stop flow — a configuration commonly used in fail-safe systems where flow must continue during a power outage.

The valve body is constructed from industrial-grade stainless steel, offering durability and resistance to rust and mild corrosion across a wide operating temperature range of 14 to 248 degrees Fahrenheit (-10 to 120 degrees Celsius). The Viton gasket and seal provide chemical resistance to petroleum-based liquids including gasoline, kerosene, diesel fuel, and organic solvents — a significant advantage over NBR seals, which can swell or degrade with those media.

Compatible media includes potable water, hot or cold water, air, natural gas, diesel, kerosene, and other low-viscosity liquids under 20 cSt. The 1/2 in female NPT threaded ports connect to standard plumbing fittings. Flow capacity is 4.8 GPM of water (Cv 4.8) at 60 degrees Fahrenheit with a 1 PSI pressure drop. Maximum operating pressure is 101 PSI for water and air, and 72 PSI for oil.

Electrical requirements: 12V DC, 1.5 A, 18 W. Response time is under one second. Estimated mechanical life exceeds one million cycles. Important: this valve is not designed for 100% duty cycle operation. Continuous energization beyond 8 hours may cause coil damage. The coil surface can reach approximately 80 degrees Celsius during extended use. This valve is not suitable for strong acids, strong bases, wastewater, high-viscosity fluids, or industrial compressed gases. Compliant with national standard JB/T7352-2010.