Conbraco 13-202-B15 Relief Valve

The Conbraco 13-202-B15 is a professional-grade steam relief valve engineered specifically for low-pressure steam heating boilers. Built with a heavy-duty bronze body, this 1" MNPT x 1" FNPT safety valve is factory-set at 15 PSI to provide reliable overpressure protection in commercial and residential hydronic systems. With a certified capacity of 643 PPH (643 lb/hr), it meets the rigorous standards of ASME Section IV, ensuring optimal discharge rates during critical pressure spikes. The internal design features a modified TFE seat and a stainless steel spring to maintain a bubble-tight seal and resist corrosion in high-temperature environments. For technicians looking for a drop-in replacement, this Apollo 13 Series valve offers a compact 3.32-inch height, making it ideal for tight boiler manifolds where clearance is a factor. Its EPDM-faced disc facilitates positive shut-off and prevents common "simmering" issues often found in inferior relief components.

• ASME Code Compliance: National Board certified for Section IV low-pressure steam applications, guaranteeing safety performance.
• Enhanced Durability: The corrosion-resistant construction utilizes a high-quality bronze alloy and stainless steel internals for long-term service in saturated steam.
• High Discharge Capacity: Rated at 643 PPH, providing sufficient venting for mid-sized boiler systems.
• Positive Sealing: Equipped with a TFE-faced disc that resists sticking and ensures a consistent 15 PSI set point.
• Standard Fitting: Features a 1-inch male NPT inlet and 1-inch female NPT outlet for straightforward integration into existing piping.

Is the Conbraco 13-202-B15 suitable for hot water boilers?
No, this specific model is a low-pressure steam safety valve. For hot water heating systems, you must use a valve rated for water service, such as the Apollo 10 or 10-600 series.

What is the maximum temperature rating for this valve?
The 13-202-B15 is rated for saturated steam service up to 250°F (121°C).

Can the set pressure be adjusted in the field?
This valve is factory-set and sealed at 15 PSI. Field adjustments should not be attempted as they void the ASME certification and can create significant safety hazards.

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.