Description

T&P Relief Valve (Temperature & Pressure Relief Valve)

A2452

Technical Characteristics

• Valve material: C46500
• Opening temperature: 93.5°C ~ 99°C
• Resetting temperature: ≥85°C
• Pressure rating: 150PSI
• Resetting pressure: ≥127.5PSI
• Cerificate:CSA

What Is aT&P Relief Valve?

T&PReliefvalves (Temperature and pressure relief valves) isa safety device installed on water heaters. It’s typically located on the top or side of the tank, with a discharge pipe extending downward. This valve is designed to open automatically when the pressure or temperature inside the tank reaches unsafe levels.

How Do T&P Relief Valve Work?

The T&P relief valve on all water heaters automatically opens when they sense an excessive amount of pressure or heat in the water heater tank, alleviating any damage they might have caused. Water will leak through the valve and discharge tube after all excess air escapes from the tank.

The T&P relief valve is to release water from the tank if it gets too hot. Thermostats and temperature controls can go out in time. When the water in our hot water tank gets to a dangerous level, we rely on the pressure relief valve to expel it from the tank and through the discharge tube before it can give us 3rd-degree burns.

HowTo Install a T&P Relief Valve?

The operation of a pressure relief valve is relatively straightforward but incredibly effective. Here’s a breakdown:

Sensing Excess Pressure or Temperature

The valve is equipped with a spring-loaded mechanism that responds to changes in pressure or temperature. When the pressure inside the water heater exceeds a preset level (usually 150 PSI for most residential models) or the temperature rises above a safe threshold (typically 210°F), the valve activates.

Releasing the Pressure or Steam

When excessive water temperature in the water heater tank builds up pressure above 150 PSI (the relief set point), that excessive pressure pushes against the pressure relief valve spring and opens the valve to release steam and water through the pressure relief pipe to the outside of your home.

This relieves the excess pressure and cold water refills the tank to lower the temperature, bringing the system back to safe operating conditions.

Automatic Reset

Once the tank pressure returns to normal levels, the spring on the pressure relief valve shuts the valve opening, sealing the tank again.

Contact & Help

For more information about T&PRelief Valve or any other heating pump system component, contact Plati-Valve.