Conbraco 19-KGGA-15 Valve

The Conbraco 19-KGGA-15 is a professional-grade ASME Section I steam pressure relief valve designed specifically for power boiler applications. Featuring a 1-1/2" MNPT inlet and a 1-1/2" FNPT outlet, this high-capacity safety valve is factory set at 15 PSI with a rated discharge capacity of 794 pounds per hour. The Apollo 19 series construction utilizes high-strength bronze for the body and brass trim to ensure structural integrity under thermal stress. The Teflon (PTFE) seat provides excellent chemical resistance and a positive seal to prevent simmering. HVAC contractors rely on this National Board certified relief valve for its top-guided design and high-performance spring, which ensures accurate popping pressure and consistent reseating. Often specified for low-pressure steam heating boilers, it offers dependable overpressure protection in demanding commercial environments. Its rugged build and corrosion-resistant finish make it a standard choice for steam system maintenance and code compliance audits.

• ASME Section I Certified: Specifically engineered and National Board capacity certified for steam service.
• PTFE Seat Design: The Teflon seat ensures a tight seal and minimizes leakage after high-pressure discharge events.
• High Flow Capacity: Delivers 794 lbs/hr steam capacity, suitable for medium-to-large boiler systems.
• Durable Construction: Features a brass trim and bronze body for superior thermal stability and longevity.
• Field-Proven Reliability: Common footprint and NPT threaded connections allow for straightforward drop-in replacement.

What is the maximum temperature rating for the Conbraco 19-KGGA-15?

This valve is typically rated for steam temperatures up to 406°F, though actual limits depend on the specific pressure-temperature curve of the 19 series bronze body.

Can this safety valve be used for liquid or air service?

No, the Conbraco 19-KGGA-15 is specifically an ASME Section I steam relief valve. Using it for water or compressed air may void code compliance and affect discharge performance.

Is the set pressure adjustable in the field?

The 15 PSI set pressure is factory-sealed to maintain ASME Code compliance. Tampering with the seal or adjusting the spring tension is not recommended and should only be performed by authorized repair centers.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.