Conbraco 10-615-15 Valve

The Conbraco 10-615-15 (Apollo 10-600 Series) is a high-capacity ASME Section IV certified safety relief valve engineered for overpressure protection in large-scale hot water heating boilers and hydronic systems. This bronze safety relief valve features a 1" Female NPT inlet and an expanded 1-1/4" Female NPT outlet, specifically designed to handle a massive 3,200,000 BTU capacity at a factory preset 75 PSI. Built with a heavy-duty ASTM B584 bronze body and a corrosion-resistant alloy steel spring, it utilizes a diaphragm-isolated spring chamber to prevent water contact with the spring, ensuring consistent set-pressure reliability even in demanding environments. This model serves as the direct replacement for 0537-E01-HM0075, providing a seamless retrofit for legacy HVAC pressure relief applications. The silicone seat and elevated seat design facilitate positive drainage and a bubble-tight seal up to its maximum operating temperature of 250°F, meeting the rigorous standards required by professional boiler system maintenance contractors.

Key Benefits:

• High BTU Rating: Certified for 3,200,000 BTU/hr, making it suitable for high-output commercial and industrial hot water boilers.
• Advanced Protection: The diaphragm-isolated spring chamber keeps the internal components dry, preventing scale build-up and corrosion.
• Durable Construction: Heavy-duty ASTM B584 bronze body and alloy steel plated spring provide long-term structural integrity.
• Precise Sealing: Features a silicone seat for enhanced heat resistance and leak prevention in high-temperature hydronic heating systems.
• Code Compliance: National Board capacity certified and ASME Section IV approved for safety-critical installations.

Common Questions:

Is the 10-615-15 compatible with older 0537-E01-HM0075 installations?
Yes, this unit is the engineered direct replacement for the 0537-E01-HM0075 model, maintaining the same 1" x 1-1/4" NPT footprint and 75 PSI rating for easy "drop-in" field replacement.

Can this valve be used for steam service?
No, the 10-600 series is specifically designed and certified for hot water heating boilers and water supply systems; it should not be applied to steam systems.

What is the purpose of the expanded 1-1/4" outlet?
The expanded outlet reduces backpressure during discharge, allowing the valve to reach its full 3,200,000 BTU certified capacity safely and efficiently.

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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.

10-615-15 is the cross of 2-30-161515