Conbraco 13-512-B15 Relief Valve

The Conbraco 13-512-B15 is a high-performance ASME Section IV steam pressure relief valve specifically engineered for low-pressure steam heating boilers and commercial processing equipment. Featuring a 3/4" Female NPT inlet and 3/4" Female NPT outlet, this valve is factory set at 15 PSI to ensure precise overpressure protection. The rugged bronze body construction and modified TFE seat (PTFE faced disc) provide a positive seal and prevent sticking, even in demanding saturated steam environments up to 250°F. With a 407 PPH (pounds per hour) capacity, it effectively manages emergency steam discharge to maintain system integrity. A top-guided design and positive drainage of condensate from the seat area minimize mineral buildup and seat galling, extending the service life of your low pressure steam boiler. Registered in all Canadian provinces (CRN) and National Board certified, the Apollo 13-512-B15 is the industry standard for contractors requiring reliable steam safety relief valve performance in residential and industrial applications.

• ASME Section IV Certified: Specifically rated for low-pressure steam heating systems and boilers.
• Corrosion-Resistant Construction: Durable bronze body and stainless steel spring withstand harsh boiler room conditions.
• Non-Stick PTFE Disc: Modified TFE seating ensures a tight seal and reliable opening at the 15 PSI set point.
• High Discharge Capacity: Rated for 407 lbs/hr to safely handle rapid pressure spikes.
• Standard NPT Connections: 3/4" FNPT inlet and outlet allow for straightforward installation into existing steam headers.

What is the maximum temperature rating for this relief valve?
This model is rated for a maximum service temperature of 250°F (121°C), making it ideal for saturated steam applications.

Is the 13-512-B15 compatible with hot water heating systems?
No, this specific valve is designed and National Board certified specifically for steam. For hot water systems, an ASME Section IV water relief valve should be used.

Can the pressure setting be adjusted in the field?
The valve is factory set and sealed at 15 PSI. Field adjustments are not recommended as they would void the ASME certification and 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.