1. No air pockets
2. Gradual rise
Figure 15: Correct
1. No air pockets
2. Eccentric reducer
Figure 16: Gradual rise to the pump – correct
1. Distance plus eccentric reducer straightens the flow
Figure 17: Suction pipe above the pump – correct
1. Path of the water
Figure 18: Suction pipe above the pump – incorrect
4.4.3 Suction-piping valve considerations
Suction valves
Before you install suction valves in the suction piping, review these considerations:
• Make sure that the suction piping valves are placed right before the run of
recommended straight pipe.
• Never throttle the pump with the use of a valve on the suction side of the pump.
• Only use suction valves to isolate the pump for maintenance purposes.
• Always install the valve in a position that avoids the formation of air pockets.
Foot valves
If the pump operates under static suction lift conditions, you can install a foot valve in the
suction line in order to avoid the necessity of priming each time you start the pump.
Before you install foot valves in the suction piping, review these considerations:
4 Installation
30 e-XC INSTRUCTION MANUAL
To Next Page
Loading...
Need help?
General
