Conbraco 10-605-10 Relief Valve

The Conbraco 10-605-10 is a high-capacity ASME Section IV certified hot water relief valve engineered specifically for commercial and industrial hydronic heating systems. Featuring a 1-inch female NPT inlet and a 1-inch female NPT outlet, this bronze relief valve is factory set at 50 PSI to provide critical overpressure protection for large-scale boiler applications. With a massive 1,956,000 BTU capacity, it effectively manages excessive water pressure caused by failed burner controls or uncontrolled thermal expansion.

Built for the rigors of mechanical rooms, the 10-600 series utilizes an ASTM B584 bronze body and an alloy steel plated spring for long-term corrosion resistance. The design incorporates a silicone seat and a fabric-reinforced diaphragm that isolates the spring chamber from the process media, preventing scale buildup and ensuring consistent lift. With a maximum temperature rating of 250°F, this safety relief valve meets the technical requirements for National Board capacity certification and is a reliable choice for maintaining system integrity in high-demand heating environments.

• High BTU Displacement: Rated for up to 1,956,000 BTU/hr, making it suitable for high-input hot water boilers and supply systems.
• Durable Construction: Heavy-duty ASTM B584 bronze body with a corrosion-resistant plated steel spring ensures reliability in harsh conditions.
• Advanced Media Isolation: Integrated diaphragm prevents the spring and guides from coming into contact with system water, reducing the risk of fouling.
• Elevated Seat Design: Features an elevated seat that facilitates water drainage away from the seating area to prevent deposit accumulation.
• Industry Compliance: Fully compliant with ASME Section IV and National Board capacity certification standards.

What is the maximum operating temperature for this valve?
The Conbraco 10-605-10 is rated for a maximum service temperature of 250°F (121°C).

Can this valve be used for steam service?
No, this specific model is designed and certified for ASME Section IV hot water heating boilers and supply systems only. For steam applications, an ASME Section I or VIII valve should be specified.

What is the recommended installation orientation?
To ensure proper operation and National Board certification, this relief valve must be installed in a vertical, upright position directly to a clean opening on the top of the boiler or pressure vessel.

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.