Conbraco 10-605-15 Relief Valve

The Conbraco 10-605-15 is a high-capacity hot water relief valve designed for critical protection in large-scale hydronic heating systems and commercial boilers. Engineered to meet ASME Section IV standards, this valve features a 1" Female NPT inlet and outlet, providing a robust 2,728,000 BTU/hr pressure steam relieving capacity. As an HVAC safety relief valve, it is factory set at 75 PSI to prevent catastrophic equipment failure caused by runaway firing conditions or thermal expansion. The Apollo 10-605-15 utilizes a corrosion-resistant bronze body and a silicone seat for positive shut-off, while its fabric-reinforced EPDM diaphragm effectively isolates the spring chamber from the water media, preventing mineral scaling. This industrial boiler relief valve supports a maximum temperature of 250°F, making it a reliable choice for contractors managing commercial heating system maintenance and high-demand water supply vessels where National Board certified protection is non-negotiable.

Key Benefits:

• High BTU Rating: Delivers 2,728,000 BTU capacity to handle high-input commercial boilers and large hydronic systems.
• Durable Bronze Construction: Features an ASTM B584 bronze body and spring cage for long-term resistance to harsh water conditions.
• Advanced Diaphragm Design: The isolated spring chamber prevents the plated alloy steel spring from contact with the process fluid, reducing the risk of corrosion.
• Precision Safety: ASME Section IV and National Board certified to ensure compliance with strict pressure vessel codes.
• Serviceable Design: Equipped with a steel lift lever for required manual testing and an elevated seat for improved drainage.

Common Questions:

What is the maximum operating temperature for the 10-605-15?
This valve is rated for a maximum temperature of 250°F (121°C), suitable for high-temperature hot water heating applications.

Can this valve be used for steam boiler applications?
No, the 10-600 series is specifically for hot water heating boilers and supply systems. For steam service, an ASME Section I or VIII valve must be selected based on the specific system requirements.

How do I ensure the valve does not leak or "weep" during normal operation?
To prevent seat leakage, a minimum operating pressure margin of 10 PSI or 25% of the set pressure (whichever is greater) should be maintained below the 75 PSI set point.

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.