
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.
Key Benefits:- 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.
This item is not eligible for free shipping.
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.
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.
Key Benefits:- 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.
This item is not eligible for free shipping.
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.
Product Information
Product Information
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Description
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.
Key Benefits:- 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.
This item is not eligible for free shipping.
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.











