Conbraco 10-616-25 Valve

The Apollo Conbraco 10-616-25 is a high-capacity hot water safety relief valve specifically engineered for the protection of large-scale ASME Section IV heating boilers and hydronic systems. This 1-1/4" x 1-1/2" FNPT valve is factory-set at 125 PSI and delivers a massive discharge capacity of 8,668,000 BTU/hr, making it a critical component for high-output commercial and industrial water heating applications. Built with a rugged ASTM B584 bronze body, it features a diaphragm-isolated spring chamber that prevents the captive spring from coming into contact with system water, significantly reducing the risk of corrosion and scale-induced mechanical failure.

For the field technician, the oversize outlet design and lift lever actuator facilitate efficient overpressure management and manual testing protocols. The silicone seat and fabric-reinforced molded diaphragm ensure a positive seal and reliable reseating performance after discharge. This National Board certified valve is rated for temperatures up to 250??F and is designed to handle the rigorous demands of hospitals, laundries, and large multi-family mechanical rooms where equipment protection and HVAC safety compliance are non-negotiable.

• High BTU Capacity: Rated at 8,668,000 BTU/hr to protect high-output hydronic boilers.
• Corrosion Protection: Features a diaphragm-isolated spring cage to extend service life in harsh water conditions.
• Standardized Connections: 1-1/4 inch Female NPT inlet and an expanded 1-1/2 inch Female NPT outlet for maximum flow.
• ASME Certified: Meets ASME Section IV requirements for hot water heating boilers and supply systems.
• Durable Construction: Heavy-duty bronze body with a stainless steel spring for industrial-grade reliability.

What is the maximum operating temperature for this valve?
This 10-600 series valve is rated for a maximum temperature of 250??F (121??C).

Can this valve be installed in any orientation?
No, for proper operation and to ensure water does not collect in the seat area, this valve must be installed in a vertical upright position directly to the pressure vessel or piping.

What media is this valve compatible with?
The 10-616-25 is specifically designed for hot water and liquid media in heating and supply systems.

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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.