General-purpose solenoid valves are available with bodies made of stainless steel, brass, and other materials.
Porting ranges from 0.25 to 1.5 NPT. There are also two, three, and four-way versions with operating pressures up to 1,000 psig. They come with NEMA-4 rain-tight solenoids, but NEMA-1 through 7 explosionproof specifications are also available.
Valcor Engineering Corp., 2 Lawrence Rd., Springfield, NJ 07081, (973) 467-8400, valcor.com.