Kunkle 40R

All stainless steel sentinel warning valves for non-code steam service on steam equipment, including steam turbines. 1/2″ and 3/4″ male NPT, 1 to 400 psig, -60°F to 850°F, top discharge. Warning devices only — a sentinel valve signals overpressure, it does not relieve it, and it is not a substitute for a code safety valve.