2.3 Piping
a. Use ISI marked PVC / HDPE pipes for suction and delivery.
b. Use only recommended pipe size for suction and delivery, as using smaller pipe
size will affect the discharge and total head. The pipes must be well supported to
avoid transmitting stress to pump body, which leads damage to the pump parts.
c. Reduce number of bends, T-joints and valves in the pipe line. Use elbows with
smoother bends as far as possible.
d. Do not use fibers / threads for pipe joints. Always use Teflon tape for joining pipe
threads.
e. Foot valve is required at end of suction pipe. Use good quality 'low friction' foot
valve for getting better performance .
f. Ensure that the foot valve is placed minimum 0.5 mtrs above the base level / floor
level of the well to avoid an entry of muddy water. The foot valve needs to be
submerged minimum 1 meter below water level, to prevent entry of air into pump
which can damage the pump due to cavitations.
The suction height from water level to the pump suction nozzle level should not be
more than 6 mtrs minus suction line losses to avoid cavitations and damage to the
pump.
2.4 Priming the Pump
Priming the pump set as shown in figure 3 is necessary at first startup and then as and
when required.
Ensure that the casing is filled adequately with water before starting. If the pump set
is idle for a very long duration
4
MULTIBOOST
To Next Page
Loading...
