Conbraco 10-102-05 Relief Valve

The Conbraco 10-102-05 is a high-capacity ASME Section IV hot water pressure relief valve designed specifically for commercial and industrial boiler applications. Featuring a 3/4" FNPT inlet and a 1" FNPT outlet, this brass-bodied valve is factory-set at 30 PSI to prevent over-pressurization in hydronic heating systems. With a certified discharge capacity of 710,000 BTU/hr, it provides critical safety protection for medium-sized boilers where high-flow relief is necessary. The 10-102-05 model is engineered for high-temperature service up to 250°F, ensuring reliability under extreme thermal conditions. This boiler safety valve utilizes a non-stick coating on the seat to prevent seizing during infrequent operation, a common failure point in poorly maintained systems. For contractors, the durable brass construction and positive drain alignment make it an industry standard for maintaining code compliance in various hydronic system relief configurations.

• ASME Section IV Certified: Rated for use in low-pressure hot water heating boilers and storage tanks.
• High Flow Capacity: Handles up to 710,000 BTU/hr, making it suitable for larger commercial water heaters.
• Robust Brass Housing: Resistant to corrosion and mechanical stress for long-term field durability.
• 30 PSI Set Point: Standardized pressure rating for wide compatibility with residential and light commercial hydronic loops.
• Reinforced Diaphragm: Designed to provide a tight seal and reliable opening characteristics throughout its lifecycle.

Is the Conbraco 10-102-05 rated for steam applications?
No, this valve is strictly an ASME Section IV relief valve designed for hot water heating service and should not be used in steam boiler systems.

Can I install this valve horizontally?
Standard HVAC code and manufacturer specifications require these valves to be installed in a vertical orientation with the discharge piping directed downward to prevent scaling and trapped debris.

What is the difference between the inlet and outlet sizes?
The valve features an oversized 1" FNPT outlet to allow for rapid expansion and safe discharge of water and steam flashes without creating excessive backpressure on the 3/4" FNPT inlet.

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.