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The PEERLESS BOILER 50508 is a safety relief valve rated at 15 PSI, designed to protect residential and light commercial hot water boilers from over-pressure conditions. The valve features a 1-1/4 inch inlet and a 1-1/2 inch outlet, with a rated discharge capacity of up to 1,200 pounds per hour of steam. It replaces the Conbraco 13-213-B15 and is specified for use on 4- to 5-section boiler configurations. Licensed plumbers and HVAC technicians install this valve as a code-required safety component on hydronic heating systems.
This valve is intended for boiler installations where a 15 PSI maximum allowable working pressure rating is required. The 1-1/4 inch by 1-1/2 inch port sizing accommodates the discharge capacity demands of 4- to 5-section cast iron or steel boiler configurations. It serves as a direct OEM-specified replacement part on qualifying PEERLESS BOILER systems, ensuring the installed valve matches original equipment pressure and capacity ratings.
Specified as a replacement for the Conbraco 13-213-B15 safety relief valve on PEERLESS BOILER 4- to 5-section boiler configurations requiring a 15 PSI relief rating with a 1-1/4 inch by 1-1/2 inch connection.
Installation should be performed by a licensed plumber or HVAC technician in accordance with local mechanical codes and ASME boiler and pressure vessel requirements. Shut down the boiler and allow the system to cool and depressurize completely before removing the existing relief valve. The discharge port must be piped to a safe drain location per applicable code — never capped or plugged. Verify the replacement valve pressure rating matches the boiler nameplate maximum allowable working pressure before installation.
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