Conbraco 10-617-10 Relief Valve

The Conbraco 10-617-10 is a high-capacity hot water relief valve engineered for the protection of large-scale ASME Section IV heating boilers and commercial hydronic systems. This veteran-preferred Apollo 10-600 series valve manages high-input BTU loads, featuring a 1 1/2" Female NPT inlet and an oversized 2" Female NPT outlet to ensure rapid discharge during overpressure events. With a 5,400,000 BTU capacity and a factory-set 50 PSI pressure rating, it utilizes a bronze body (ASTM B584) and a silicone seat for reliable thermal performance up to 250°F. The design incorporates a diaphragm isolated spring chamber, preventing the corrosive effects of system water on the internal spring mechanism. This industrial safety valve is crucial for maintaining compliance in high-output boiler rooms where ASME certified relief valves are required to prevent catastrophic pressure failure.

• ASME Section IV Certified: Delivers National Board capacity-certified protection for high-output commercial boilers.
• Diaphragm Isolation: Features a fabric-reinforced molded diaphragm that keeps the alloy steel spring separate from water at all times to prevent scaling and corrosion.
• High Discharge Rate: The expanded 2" FNPT outlet allows for massive volume displacement, accommodating 5.4 million BTU/hr systems.
• Durable Construction: Built with a corrosion-resistant ASTM B584 bronze body and a resilient silicone seat for tight shut-off after cycling.

What is the maximum operating temperature for the 10-617-10?
This valve is rated for a maximum service temperature of 250°F (121°C).

Can this valve be used for steam applications?
No, this specific model is an ASME Section IV high capacity pressure relief valve designed specifically for hot water heating boilers and supply systems.

Does this valve include a manual test lever?
Yes, the 10-617-10 comes standard with a reinforced stainless steel or plated steel lift lever for manual testing of the boiler safety valve internals.

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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.