Support suction pipe
as required
Support discharge
pipe as required
As close
as possible
4 x "D"
minimum
Pipe diameter "D"
at least as large as
pump suction connection
Important:
All connections must
be air tight
Solid, level
base
Plug
Gate
Valve
Union
Discharge
to service
Recommended pump suction
and discharge connections
Not recommended pump suction
and discharge connections
Elbow immediately
in front of pump
suction.
High
lift
Pipe diameter "D"
insufficient size
Pipe submerged
less than 4 x "D"
will cause vortexing
Long suction
run
Valve
Unsupported
Pipe
Misaligned pipe causes
air leaks;
high spots along the suction line
result in air pockets.
Offset suction flange adapter
keeps suction water level
above impeller eye to aid priming.
Use of excess fittings
means potential
air leaks
Straight run, short as
possible but at least 6
times pipe diameter ("D");
slope is
down going away
from pump.
Some models have top
discharge; these require
a priming tee.
On the discharge avoid:
Quick closing valves.
Small I.D. pipe.
Numerous fittings.
Misalignment.
Sharp turns in piping run.
Figure 1
Figure 2
Installation 4
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