Description
The Laars Heating Systems A0063300 Relief Valve is a safety pressure relief component used in hydronic heating parts to protect boilers from excessive internal compulsion. It is calibrated to open automatically at 75 PSI, discharging water when system pressure exceeds safe operating limits to prevent equipment damage in HVAC systems . Installed on boiler or hot water heating assemblies, it maintains controlled pressure conditions during thermal expansion and circulation cycles. The valve supports safe operation of Heating units equipment by ensuring overpressure protection and stable performance in hydraulic applications.
