Conbraco 10-615-12 Valve

The Apollo Conbraco 10-615-12 is a high-capacity ASME Section IV hot water relief valve engineered for heavy-duty protection of large-scale heating systems and commercial boilers. Featuring a 1" FNPT inlet and a 1-1/4" FNPT outlet, this bronze-bodied safety valve is factory-set at 60 PSI to provide essential overpressure protection. With an impressive 2,657,000 BTU/hr capacity, it manages thermal expansion and pressure spikes in high-output hydronic setups. The 10-600 series design utilizes a high-lift silhouette and a silicone EPDM seat for positive shut-off and resistance to vibrating or harsh boiler environments. Contractors rely on this National Board certified safety valve for its reliable pop-and-reseat performance, ensuring the pressure vessel stays within safe operating limits during high-demand cycles. The corrosion-resistant stainless steel spring and bronze casting ensure durability in aggressive water conditions, making it a standard replacement for industrial HVAC applications.

Key Benefits for Contractors

• High Discharge Capacity: Rated at 2,657,000 BTU/hr to handle large commercial boiler loads.
• ASME Section IV Certified: Designed and tested to meet strict HVAC safety codes and boiler pressure regulations.
• Durability: Features an all-bronze body and stainless steel springs to prevent scale buildup and corrosion.
• Reliable Sealing: Equipped with a silicone seat for a tight seal and consistent 60 PSI relief setting.

Common Questions

Is the Conbraco 10-615-12 suitable for steam applications?
No, this specific model is an ASME Section IV water relief valve designed for hot water heating boilers and supply systems. For steam service, an ASME Section I or VIII valve is required.

What is the purpose of the oversized 1-1/4" outlet?
The larger expansion outlet reduces backpressure during discharge, allowing the valve to achieve its full rated BTU capacity without restriction.

Can the pressure setting be adjusted in the field?
This valve is factory-set and sealed at 60 PSI. Tampering with the seal or attempting to adjust the set pressure will void the ASME certification and could compromise system safety.

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.