Description
The Weil McLain 383-600-091 water relief valve features a 3/4″ FPT inlet and opens automatically at 30 PSI to discharge excess pressure from a hydronic boiler circuit before it reaches unsafe levels. A spring-loaded mechanism inside the valve body respond to pressure buildup, lifting the seat to release water through the outlet port without manual intervention. The valve threads directly into the boiler supply line using the female pipe connection, requiring no additional fitting for a secure fit. Safeguarding HVAC systems, this valve protects the entire heating circuit from over-pressurization event, preserving piping integrity across fluctuating thermal load conditions.
