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 FIGURE 3-12
Gauges Out of
Calibration With the
Pump Off and On
If there is only one gauge, with piping and valves as shown in Figure 3-13, the
pressure change is the outlet pressure minus the inlet pressure. Both pressures are
measured while the pump is running.
PRESSURE
GAUGE
FIGURE 3-13
A Single Pressure
Gauge Capable of
Measuring Both Pump
Inlet and Outlet
Pressure
CIRCULATING
PUMP
INSPECTION
78
3.1 INSPECTION PROCEDURES
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