Conbraco Industries 18C-521-5-125 1″ NPT T&P Relief Valve, 125 PSI, 210°F, 5″ Probe

Description

Conbraco Industries 18C-521-5-125 Temperature & Pressure Relief Valve

The Conbraco Industries 18C-521-5-125 is a heavy-duty Temperature and Pressure (T&P) Relief Valve engineered to provide reliable overpressure and overtemperature protection for water heaters and hydronic heating systems. With a factory-set pressure rating of 125 PSI and a temperature rating of 210°F, this valve automatically opens to safely discharge water when either threshold is exceeded, safeguarding your system from catastrophic failure.

Key Features

• 1″ Male NPT inlet connection for straightforward installation
• 1″ Female NPT outlet connection for easy discharge line attachment
• Factory-set relief pressure: 125 PSI
• Factory-set relief temperature: 210°F
• High BTU capacity: 1,825,000 BTU — suitable for large-capacity water heaters and boilers
• 5″ probe length for accurate immersion sensing in the water heater tank
• Durable brass construction for long-lasting corrosion resistance

Specifications

• Brand: Conbraco Industries
• SKU: 18C-521-5-125
• Inlet Connection: 1″ Male NPT
• Outlet Connection: 1″ Female NPT
• Set Pressure: 125 PSI
• Set Temperature: 210°F
• BTU Capacity: 1,825,000 BTU/hr
• Probe Length: 5″
• Valve Type: Temperature and Pressure Relief Valve

Applications

• Residential and commercial water heaters
• Hydronic boilers and heating systems
• Any pressurized water heating application requiring T&P overpressure protection

Designed to meet the demands of professional HVAC and plumbing contractors, the Conbraco 18C-521-5-125 delivers dependable safety performance in a wide range of water heating applications. Its generous 1,825,000 BTU capacity and 5″ probe length make it well-suited for larger water heaters where precise temperature sensing and high-flow discharge capability are essential.