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 Temperature and Pressure Relief Valve
Sometimes called "T and P's," these valves are similar to pressure relief valves.
However, a temperature and pressure relief valve includes a temperature sensitive
element at the valve inlet that extends a few inches into the hottest water at the top
of the storage tank or water heater. (Figure 2-31)
FIGURE 2-30
Pressure Relief
Valves
FIGURE 2-31
A Temperature and
Pressure Relief
Valve
OPERATION
36
2.7 COMPONENT OPERATION
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