MEH25/450 - 1/4" MNPT HYDROSTATIC RELIEF VALVE - 450 PSIG

Designed to protect piping and shutoff valves from over pressure situations where liquid LP-Gas or NH3 has the potential to be trapped. These relief valves provide pressure relief at or in excess of the stated pressure setting, protecting against line or plumbing system failures.

NOTE: NFPA #58 states, “Hydrostatic relief valves designed to relieve the hydrostatic pressure that can develop in sections of liquid piping between closed shutoff valves shall have pressure settings not less than 400 psig or more than 500 psig unless installed in systems designed to operate above 350 psig. Hydrostatic relief valves for use in systems designed to operate above 350 psig shall have settings not less than 110 percent or more than 125 percent of the system design pressure.”

Features:

• Compact design to fit any application
• Stainless steel spring
• Non-adjustable, tamper resistant design
• Stainless steel models rated for LP-Gas & NH3
• Specially designed internal components to increase flow at discharge