Stainless Steel body, Normally Closed design (valve opens when voltage is applied to coil), Viton diaphragm, NPT Female by NPT Female Threads. Works with most fluids and non-flammable gasses. If you need food safe or lead-free, replace the Viton diaphragm with a Silicone repair kit. Maximum pressure 145PSI, maximum temperature 302F.Application note; the coil body can get hot during operation, up to 200F is normal. Horizontal installations only.