Description
The Watts 0275174 is a 174A-series safety relief valve engineered to provide dependable overpressure protection for steam boilers, hot water boilers, and hydronic heating systems. With a 1-inch connection size, a 75 PSI set pressure, and an impressive 2,055,000 BTU/hr rated capacity, this valve is built to handle the demands of commercial and industrial heating applications.
The Watts 174A line is a trusted industry standard for boiler safety, automatically venting excess pressure to protect equipment, piping, and personnel whenever system pressure exceeds the set point. Its robust construction ensures long service life and reliable performance in high-demand environments.
Key Features
- Model: Watts 174A — industry-standard boiler safety relief valve
- Connection Size: 1 inch
- Set Pressure: 75 PSI
- Rated Capacity: 2,055,000 BTU/hr
- Designed for steam boilers, hot water boilers, and hydronic heating systems
- Automatic pressure relief to protect equipment and system integrity
- Durable construction for long-lasting, dependable service
- SKU: 0275174
Specifications
- Brand: Watts
- Model Series: 174A
- Inlet Connection: 1″
- Set Pressure: 75 PSI
- BTU/hr Capacity: 2,055,000
- Application: Steam & hot water boiler overpressure protection
Applications
- Commercial and industrial steam boiler systems
- Hot water boiler installations
- Hydronic heating systems requiring certified pressure relief
- Replacement or upgrade of existing boiler safety valves









