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21 Φεβ 2006 · These ASME, ANSI and CSA (AGA) approved relief valves protect the water heater from excess pressures and temperatures by discharging water. In normal operation of the water heater and T&P valve, no water should be discharged from the valve.
To select a T&P valve some basic applica-tion factors must be considered: sizing, location in the water heater and draining. Sizing the valve is based on ensuring that the valve discharge rating is in excess of the BTU input as indicated on the manu-facturer's label on the heater.
Temperature and Pressure Relief Valves, also called T&P valves, are emergency safety limit devices that will prevent or relieve overheated water and pressure. Without a relief valve during an unsafe condition, the pressure inside the tank would rise to the point the tank may rupture or explode.
The TP relief valve controls and limits the temperature and pressure of the hot water contained in a domestic storage heater and prevents it from being able to reach temperatures of over 100°C, with the
• Unvented water heater incorporating immersion heater(s) & thermal controls • Factory fitted temperature/pressure relief valve (set at 90°C / 1 Mpa (10bar)) • Cold water combination valve assembly
new Temperature and Pressure (T&P) Relief Valve is included with your water heater to reduce risk of explosion by discharging hot water. Additional temperature and pressure protective equipment may be required by local codes. A nationally recognized testing labora-tory maintains periodic inspection of the valve production process and certi-
new Temperature and Pressure (T&P) Relief Valve is included with your water heater to reduce risk of explosion by discharging hot water. Additional temperature and pressure protective equipment may be required by local codes. A nationally recognized testing labora-tory maintains periodic inspection of the valve production process and certi-
