1
2
3
4
5
Item Description
1.
By-pass line
2.
Shutoff valve
3.
Foot valve
4.
Check valve
5.
Discharge isolation valve
Figure 34: Pump priming with suction supply below pump with foot valve using bypass around
check valve
5.9.3 Other methods of priming the pump
You can also use these methods in order to prime the pump:
•
Prime by ejector
•
Prime by automatic priming pump
5.10 Start the pump
WARNING:
Risk of equipment damage, seal failure and breach of containment. Ensure all flush and cool-
ing systems are operating correctly prior to starting pump.
NOTICE:
•
Risk of equipment damage due to dry operation. Immediately observe the pressure
gauges. If discharge pressure is not quickly attained, stop the driver immediately, reprime,
and attempt to restart the pump.
•
On frame mounted units, ensure that the oil level is correct prior to starting pump. Close
coupled pumps do not have oil lubricated bearings.
5.10 Start the pump
66
Models 3180, 3181, 3185, and 3186 Installation, Operation, and Maintenance Manual