Description
The Watts LF3L-3/4-150 Pressure Relief Valve Set 3/4″ Lead Free factory-set at 150 PSI and 210F, automatically discharging excess pressure before unsafe buildup occurs within a closed system. Its lead-free brass construction meets potable water safety standards, making it suitable for hydronic heating applications without additional material compliance. Pressure vessels and boiler circuits in HVAC systems require for this valve to guard against thermal expansion and overpressure conditions at water heaters, storage tanks, and heating supply lines. The inlet connection fits standard tapping points directly and automatic discharge at each overpressure event maintains safe operating limits through sustained thermal and pressure cycling.









