Conbraco Industries 18C-512-3-150 3/4″ NPT T&P Relief Valve, 150 PSI, 210°F

Conbraco Industries 18C-512-3-150 Temperature & Pressure Relief Valve

The Conbraco Industries 18C-512-3-150 is a high-performance Temperature and Pressure (T&P) Relief Valve engineered to provide critical overpressure and overtemperature protection for residential and light commercial water heaters and hydronic heating systems. Designed for dependable, code-compliant safety, this valve automatically opens to discharge water when system pressure or temperature exceeds safe operating limits — protecting equipment and occupants alike.

Key Specifications

• Inlet Connection: 3/4″ Female NPT
• Outlet Connection: 3/4″ Female NPT
• Pressure Setting: 150 PSI
• Temperature Setting: 210°F
• BTU Capacity: 1,912,000 BTU/hr
• Probe Length: 3 inches
• Valve Type: Temperature and Pressure Relief Valve
• SKU / Model: 18C-512-3-150

Features & Benefits

• Dual-function protection against both excessive pressure (150 PSI) and high temperature (210°F) conditions
• High BTU capacity rating of 1,912,000 BTU/hr suits a wide range of water heater and boiler applications
• 3″ probe length ensures accurate sensing of water temperature within the tank or vessel
• 3/4″ Female NPT inlet and outlet connections for straightforward installation with standard plumbing fittings
• Manufactured by Conbraco Industries, a trusted name in plumbing and HVAC safety valves
• Designed to meet safety standards for residential and light commercial water heating equipment

Application

The 18C-512-3-150 is ideal for use on residential and commercial water heaters, storage tanks, and hydronic boilers where reliable T&P protection is required. The valve’s 150 PSI pressure rating and 210°F temperature rating make it suitable for a broad range of system configurations, while its generous 1,912,000 BTU/hr capacity ensures it can handle high-demand installations without nuisance tripping.