Description
Conbraco Industries 18C-511-3-125 Temperature & Pressure Relief Valve
The Conbraco Industries 18C-511-3-125 is a heavy-duty Temperature and Pressure (T&P) Relief Valve engineered to protect water heaters and hydronic heating systems from dangerous over-pressure and over-temperature conditions. Factory-set at 125 PSI and 210°F, this valve delivers reliable, automatic protection in demanding residential and commercial applications.
Key Features
- Factory-set relief pressure of 125 PSI for precise, consistent protection
- Temperature setting of 210°F guards against thermal runaway
- High BTU capacity of 1,619,000 BTU/hr handles high-output water heating systems
- 3″ probe length ensures accurate immersion sensing within the water heater tank
- 3/4″ Male NPT inlet connection for straightforward installation
- 3/4″ Female NPT outlet connection for easy discharge line attachment
- Durable brass construction for long-lasting corrosion resistance
- Automatic reset design for dependable, low-maintenance operation
Specifications
- SKU: 18C-511-3-125
- Brand: Conbraco Industries
- Valve Type: Temperature and Pressure Relief Valve
- Inlet Connection: 3/4″ Male NPT
- Outlet Connection: 3/4″ Female NPT
- Set Pressure: 125 PSI
- Temperature Setting: 210°F
- BTU Capacity: 1,619,000 BTU/hr
- Probe Length: 3″
Applications
Ideal for use on residential and light commercial water heaters, boilers, and hydronic heating systems where ASME- and ANSI-compliant over-pressure and over-temperature protection is required. The 125 PSI set point and 1,619,000 BTU capacity make this valve suitable for high-demand systems requiring robust safety performance.







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