Conbraco 10-617-05 Valve

The Conbraco 10-617-05 is a high-capacity hot water relief valve engineered for critical pressure protection in large-scale hydronic heating systems and commercial boilers. Constructed with a heavy-duty ASTM B584 bronze body and a corrosion-resistant stainless steel spring, this 10-600 series valve is built to survive the rigors of mechanical room environments. It features a 1-1/2" Female NPT inlet and an oversized 2" Female NPT outlet to facilitate maximum discharge flow, delivering a certified capacity of 3,696,000 BTU/hr at a 30 PSI set pressure. The internal diaphragm isolates the spring chamber from the process media, preventing scale buildup and ensuring consistent lift performance even in demanding applications. As an ASME Section IV certified safety device, the 10-617-05 (Model RVW61) provides the high-volume relief necessary to protect pressurized vessels and system components from overpressure conditions up to a maximum temperature of 250°F.

• ASME Section IV Certified: National Board capacity certified to meet stringent safety codes for hot water heating boilers.
• Maximum Discharge Flow: Features an expanded 2" outlet to prevent backpressure and allow for high-volume steam/water evacuation.
• Diaphragm Isolation: The spring and guide area are protected from the water, reducing maintenance needs and extending the valve's service life.
• Durable Construction: Built with a silicone seat and EPDM/silicone soft goods for a positive seal and reliable reset after discharge.
• High BTU Rating: Capable of handling 3,696,000 BTU, making it suitable for high-output commercial heating loops and heat exchangers.

Common Questions

What is the difference between the 10-607 and the 10-617?
The 10-607 features a standard 1-1/2" x 1-1/2" configuration, while the 10-617 utilizes an oversized 2" outlet. Technicians prefer the 10-617 for systems requiring higher BTU discharge capacities without increasing the inlet pipe size.

Can this valve be used for steam heating applications?
No, the Conbraco 10-617-05 is specifically ASME Section IV certified for hot water service only. For steam boilers, you must use an ASME Section I or VIII certified safety valve designed for vapor discharge.

Does the 10-617-05 require specific mounting orientation?
Yes, for proper operation and to satisfy most local codes, the valve should be installed in a vertical position with the drain piping sloped for gravity drainage to prevent water from collecting above the seat.

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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.