Description
The Laars Heating Systems RA2138801 Pressure Relief Valve is a safety part used in hydronic heating systems to control and limit internal system pressure. It automatically opens when pressure exceeds its rated threshold, typically around 75 PSI, releasing excess water to prevent damage to boilers, heat exchangers, and connected piping. The heating system during operation under varying load and temperature conditions. This valve is commonly used in residential and commercial HVAC applications where stable pressure regulation is required for safe and efficient system performance.









