Description
Conbraco Industries 18C-522-8-125 Temperature & Pressure Relief Valve
The Conbraco Industries 18C-522-8-125 is a heavy-duty Temperature and Pressure (T&P) Relief Valve engineered to provide critical overpressure and overtemperature protection for water heaters, boilers, and hydronic heating systems. With a robust 3,070,000 BTU/hr discharge capacity and an 8″ probe length, this valve is built to handle demanding commercial and residential applications where reliable safety performance is non-negotiable.
Designed with a 1″ Female NPT inlet and a 1″ Female NPT outlet, the 18C-522-8-125 integrates seamlessly into standard piping configurations. It is factory-set to open at 125 PSI and 210°F, automatically relieving excess pressure and temperature to protect system components and occupants alike.
Key Features
- 1″ Female NPT inlet x 1″ Female NPT outlet connections for easy installation
- Factory set at 125 PSI pressure relief setting
- Factory set at 210°F temperature relief setting
- 3,070,000 BTU/hr discharge capacity for high-demand applications
- 8″ probe length for accurate immersion sensing in water heater or boiler tanks
- Dual-function temperature and pressure relief in a single valve
- Durable construction designed for long-term, reliable service
Specifications
- SKU: 18C-522-8-125
- Brand: Conbraco Industries
- Inlet Connection: 1″ Female NPT
- Outlet Connection: 1″ Female NPT
- Pressure Setting: 125 PSI
- Temperature Setting: 210°F
- BTU Capacity: 3,070,000 BTU/hr
- Probe Length: 8″
- Valve Type: Temperature and Pressure Relief Valve
Applications
- Residential and commercial water heaters
- Hydronic boilers and heating systems
- Hot water storage tanks
- Any pressurized hot water system requiring T&P overpressure protection







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