Description
Watts 740-1-40# Commercial Pressure Relief Valve — 0382589
The Watts 0382589 is a Series 740 commercial-grade pressure relief valve engineered for demanding boiler and hydronic heating applications. With a 40 PSI set pressure, a 1″ inlet by 1.25″ outlet connection, and a rated capacity of 1,600,000 BTU/hr, this relief valve delivers the robust overpressure protection required in high-output commercial and industrial heating systems.
Key Features
- Series 740 commercial pressure relief valve by Watts
- Set pressure: 40 PSI (40#)
- Rated capacity: 1,600,000 BTU/hr
- Inlet connection: 1″ NPT
- Outlet connection: 1.25″ NPT
- Designed for commercial boiler and hydronic heating system protection
- Provides reliable, automatic overpressure relief to safeguard system integrity
- Durable construction built to withstand high-demand heating environments
Application
The Watts Series 740 relief valve is ideal for use on commercial hot water boilers, hydronic heating systems, and other pressurized heating equipment requiring dependable pressure relief. The 40 PSI set point and 1,600,000 BTU/hr capacity rating make it well-suited for large commercial installations where system safety and code compliance are critical.
Why Choose Watts Relief Valves
Watts is a globally recognized leader in flow control and water quality products. The Series 740 line is purpose-built for commercial heating applications, offering consistent performance, long service life, and compliance with industry safety standards. Trust Watts and Jackson Systems to keep your hydronic systems protected and operating at peak efficiency.







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