The P25 Pilot Valve is an industry standard. Details of construction include a precision-machined, forged brass body, brass adjustment screws, and stainless steel ball and spring. Valve cut-in and cut-out pressures are factory set per customer specifications (if no specifications are given, valve is set at standard setting of 95-115 PSI). Valve is also field adjustable. Valve includes a mounting boss, tapped with a 3/8 - 16 UNC thread, a 1/4" NPT inlet and a 1/8" NPT outlet. Valve comes standard with unloading sleeve for gas engine warm up. Options include a toggle for one-hand unloading, a lockout thumbscrew for dual control systems, and a 1/4" NPT nipple installed into the inlet port. Maximum cut-out pressure 250 PSI, minimum cut-out pressure 60 PSI. Max temperature is 350°F.