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The APOLLO VALVES CON-13211B15 is a steam relief valve rated at 15 PSI, designed to protect steam systems from excess pressure buildup. It features a 3/4 inch male inlet and 3/4 inch female outlet connection, making it a direct-fit solution for standard steam system piping configurations. This valve automatically opens to release pressure when the system exceeds the set relief point, then reseats once pressure drops to a safe level. It is typically installed by licensed plumbers and steam system technicians on low-pressure steam heating systems in residential and light commercial applications.
This steam relief valve is suited for low-pressure steam heating systems where overpressure protection is required. The 3/4 inch male-by-female configuration allows for straightforward inline installation on steam boilers and associated piping. Its 15 PSI set point aligns with common operating limits for residential steam heating equipment, making it a practical replacement or new-installation choice for service professionals working on older steam systems or performing boiler maintenance.
Designed as an OEM-style replacement steam relief valve for low-pressure residential and light commercial steam heating systems with 3/4 inch threaded pipe connections.
Installation should be performed by a licensed plumber or qualified steam system technician in accordance with local plumbing codes and ASME standards. Shut down the boiler and allow the system to depressurize and cool completely before removing or installing any relief valve. Apply thread sealant rated for steam service to the male threads before installation. Never cap or plug a relief valve discharge port, and always pipe the discharge to a safe drain location.
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