1
2
3
4
5
Item Description
1.
Discharge isolation valve
2.
Shutoff valve
3.
From outside supply
4.
Foot valve
5.
Check valve
Figure 38: Pump priming with suction supply
below pump with foot valve and an outside sup-
ply
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 39: Pump priming with suction supply
below pump with foot valve using bypass
around check valve
5.7.3 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
5.8 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.
5.8 Start the pump
Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual
61
