Conbraco 10-604-10 Relief Valve

When you're outfitting a high-demand hydronic system, the Conbraco 10-604-10 Relief Valve (also known as the Apollo RVW60) is the industry standard for reliable overpressure protection. This hot water boiler safety valve features a heavy-duty ASTM B584 bronze body and a 3/4" female NPT inlet and outlet, making it a direct fit for many commercial and residential boilers. It is factory-set at 50 PSI and is ASME Section IV certified, providing a significant 1,209,000 BTU capacity to handle thermal expansion and control failure scenarios in high-output systems.

Designed for durability in harsh environments, this 3/4 inch relief valve utilizes a diaphragm-isolated spring chamber. This design ensures that the alloy steel plated spring never comes into contact with the process water, preventing corrosion and scale buildup that can lead to valve sticking. The silicone seat provides a bubble-tight seal and reliable reseating after discharge. With a maximum temperature rating of 250°F, this high capacity pressure relief valve ensures system integrity and safety for professional contractors who prioritize rugged, field-proven components.

• ASME Section IV Certified: National Board capacity certified for high-output hot water heating systems.
• Corrosion Protection: Fabric-reinforced molded diaphragm keeps water out of the spring cage to ensure long-term functionality.
• High BTU Rating: Capable of discharging 1,209,000 BTU/hr, suitable for large hydronic boiler applications.
• Reliable Sealing: Soft-seat silicone design prevents weeping and ensures a positive shut-off after pressure events.
• Debris Resistance: Elevated seat design allows for better drainage and prevents sediment from fouling the seating surface.

What is the maximum operating temperature for this valve?
This valve is rated for a maximum temperature of 250°F (121°C), making it suitable for standard and high-temperature hydronic loops.

Can the pressure set point be adjusted in the field?
While the 10-600 series is available in various factory settings, this specific 10-604-10 model is factory-set and certified at 50 PSI to meet specific system requirements.

Is this valve suitable for steam applications?
No, this model is specifically engineered and ASME Section IV certified for hot water heating boilers and systems only.

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.