Conbraco Industries 18C-521-5-150 1″ NPT T&P Relief Valve, 150 PSI, 210°F, 5″ Probe

Description

Conbraco Industries 18C-521-5-150 Temperature & Pressure Relief Valve

The Conbraco Industries 18C-521-5-150 is a heavy-duty Temperature and Pressure (T&P) Relief Valve engineered to protect water heaters and hydronic heating systems from dangerous over-temperature and over-pressure conditions. With a robust 2,155,000 BTU capacity, this valve is well-suited for demanding commercial and residential applications where reliable safety performance is non-negotiable.

Key Features

• 1″ Male NPT inlet connection for straightforward installation
• 1″ Female NPT outlet connection for easy discharge line hookup
• Factory-set relief pressure of 150 PSI for precise overpressure protection
• Factory-set temperature relief at 210°F to guard against overheating
• High BTU capacity of 2,155,000 BTU — ideal for larger water heating systems
• 5″ probe length ensures accurate sensing deep within the water heater tank
• Durable construction designed for long-term, dependable service life

Specifications

• Brand: Conbraco Industries
• SKU / Model: 18C-521-5-150
• Inlet Connection: 1″ Male NPT
• Outlet Connection: 1″ Female NPT
• Set Pressure: 150 PSI
• Set Temperature: 210°F
• BTU Capacity: 2,155,000 BTU
• Probe Length: 5″
• Valve Type: Temperature and Pressure Relief Valve

Applications

• Residential and light commercial water heaters
• Hydronic boiler and heating systems
• Storage tank water heating equipment
• Any system requiring dual temperature and pressure overpressure protection

The Conbraco 18C-521-5-150 delivers the safety assurance that installers and building owners depend on. Its dual-function sensing capability — monitoring both temperature and pressure simultaneously — ensures your system is protected against two of the most common failure modes in water heating equipment. Trust Conbraco’s proven engineering for code-compliant, reliable T&P relief protection.