Description
The Bell & Gossett 110125 is a high-capacity pressure relief valve engineered to protect hydronic heating systems from dangerous overpressure conditions. With a 3/4″ connection size, a factory-set opening pressure of 75 PSI, and a rated capacity of 1,615,000 Btuh, this valve delivers dependable system protection across a wide range of commercial and residential boiler applications.
Bell & Gossett is a trusted name in hydronic system components, and the 110125 upholds that reputation with rugged construction and consistent, reliable performance. When system pressure exceeds the 75 PSI set point, the valve opens automatically to vent excess pressure and safeguard connected equipment — then reseats securely once normal operating conditions are restored.
Key Specifications
- Brand: Bell & Gossett
- Part Number: 110125
- Connection Size: 3/4″
- Set Pressure: 75 PSI
- Rated Capacity: 1,615,000 Btuh
- Application: Hydronic heating and boiler systems
Features & Benefits
- Factory-set at 75 PSI for consistent, reliable overpressure protection
- High Btuh capacity rating of 1,615,000 Btuh suits demanding commercial and large residential systems
- 3/4″ connection size for straightforward installation into standard hydronic piping
- Automatic pressure relief and secure reseating protect system integrity
- Backed by Bell & Gossett’s legacy of hydronic system engineering excellence
Typical Applications
- Hot water boiler systems
- Hydronic heating loops
- Commercial and residential heating plants requiring 75 PSI relief protection







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