Features: No energy consumption, with direct and stable water regulation. Brass casting structure Brass, wear-resistant and reliable heat-resistant, accurate anti-corrosion. The pressure control valve (constant flow valve) works like a water flow switch. This solenoid valve not only maintains a steady flow of constant current, but also prevents low voltage combustion. dries and controls the flow. Easy to install and maintain. Specifications: Body: Brass Thread Size: 1/2 Weight: 212g Size: Approx. 6 x 6.4 / 2.4 x 2.5in Operating Altitude: 11> 18> 32 Duration :> 100,000 times Package includes: 1 x water valve