GC Valves - Two-way and three-way solenoid valves. Brass, stainless steel and plastic housings.Pipe sizes from 10-32 to 2 inch in single valve, manifold, explosion proof, intrinsically safe designs, latching and low power designs. Brass, stainless steel construction, and plastic bodies. For use in air, water, steam, and combustion. Industrial solenoid valve manifolds for air and gases, water, light oil and other liquids.