Description
The Conbraco 10-604-15 is a premium, ASME Section IV–certified bronze safety relief valve designed to protect hot-water heating boilers and hydronic systems. Engineered for reliability and performance, this ¾-inch FNPT inlet/outlet relief valve helps maintain system integrity by releasing excess pressure safely and consistently.
Key Features:
- Adjustable Pressure Range: Factory-set at 75 psig, but field-adjustable between 15 and 160 psig (1–11 bar) to match your system’s needs.
- High-Capacity Performance: Capable of discharging up to 1,686,000 BTU, making it well-suited for residential and commercial hydronic systems.
- Robust Construction: Built with a bronze body (ASTM B584) and a plated alloy steel spring for superior corrosion resistance and durability.
- Diaphragm-Isolated Spring Chamber: Helps prevent system water from corroding or fouling the internal spring, increasing longevity.
- Silicone Seat Seal: Delivers dependable sealing under normal and elevated temperature conditions.
- High-Temperature Capability: Rated for use at temperatures up to 250°F (121°C), making it ideal for boiler and heating applications.
- Corrosion-Resistant Design: Bronze construction and quality internal components ensure long life even in demanding environments.
- Made in the USA: Manufactured domestically, supporting quality standards and reliable sourcing.






