La. Admin. Code tit. 55 § V-5053

Current through Register Vol. 50, No. 9, September 20, 2024

Section V-5053 - Safety Relief Valves

A. Each potable water heater shall have at least one ASME certified pressure temperature relief valve of the automatic reseating type set to relieve at or below the maximum allowable working pressure of the potable water heater and/or no greater than 210° F. Safety relief valves officially rated as to capacity shall have pop action when tested by steam. When more than one safety relief valve is used on a potable water heater, the additional valve or valves shall be ASME rated and may be set within a range not to exceed 10 percent of the set pressure of the first valve. Safety relief valves shall be spring-loaded. Safety relief valves shall be so arranged that they cannot be reset at a higher pressure.

B. When water supply to a potable water heater exceeds 75 percent of the design pressure of the water heater, a pressure reducing valve is required.

La. Admin. Code tit. 55, § V-5053

Promulgated by the Department of Public Safety, Office of the State Fire Marshal, LR 33:1364 (July 2007).

AUTHORITY NOTE: Promulgated in accordance with R.S. 23:531 and R.S. 51:1424.