Flush Mounted Internal Relief Valves

Primarily for trucks transporting LP-Gas, NH3 or other compressed gases. Types H722 and H732 stainless steel (316/CF8M) relief valves resist rust and corrosion. Stainless steel makes it easy to remove the valve from the tank for periodic testing (as prescribed by DOT), and permits standard tank couplings instead of the more costly flanged tank openings. Field-repairable valve seats allow for seat replacement without affecting relief set point.

* Order Type P304 (1-1/2″ hex bar) installation wrench.
# Order Type P305 (2-1/2″ hex bar) installation wrench.