Conbraco 13-213-B05 Relief Valve

The Conbraco 13-213-B05 is a high-performance ASME Section IV steam relief valve engineered for low-pressure steam heating and supply boilers. This bronze safety valve features a 1 1/4" Male NPT inlet and a 1 1/2" Female NPT outlet, facilitating streamlined integration into existing commercial or industrial boiler systems. Factory set at 5 PSI, it provides a certified relieving capacity of 699 pounds per hour to ensure critical overpressure protection. The Apollo 13 series utilizes a bronze body (ASTM B584) and a PTFE-faced disc for a positive seal and enhanced corrosion resistance. Professional installers value the flat seat design and positive drainage of condensate, which prevents seat fouling and extends service life. This National Board certified valve is rated for a maximum temperature of 250°F and incorporates a stainless steel spring for consistent opening pressures in demanding HVAC steam applications.

• ASME Section IV Certified: Specifically built and tested to meet rigorous safety standards for low-pressure steam heating boilers.
• Durable Bronze Construction: Features an ASTM B584 bronze body and stainless steel spring for superior longevity in corrosive environments.
• Positive Seal Performance: The PTFE-faced disc and flat seat design ensure a tight shut-off and minimize leakage after discharge.
• Optimized Condensate Drainage: Engineered with a raised seat area to allow positive drainage, preventing moisture buildup and scale accumulation.

What is the maximum temperature rating for the Conbraco 13-213-B05?
This valve is rated for saturated steam service up to a maximum temperature of 250°F (121°C).

Can this valve be used for hot water heating applications?
No, the 13-213-B05 is specifically a Section IV Steam Relief Valve. For hot water systems, an "HV" rated safety relief valve designed for liquid service should be selected.

How should the discharge piping be sized for this unit?
The discharge piping must be at least 1 1/2" to match the valve outlet. Never reduce the pipe size, as this can create backpressure and restrict the 699 lb/hr relieving capacity.

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.