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17
PI Operation Manual
8. Pump and pipe flanges must be parallel; they should mate together without effort, and with the
bolt holes properly in line.
9. Proceed in the same way with the discharge pipe.
Make sure that there are isolation block valves at the pump for each type of auxiliary
piping.
Consider a slope in the suction piping to avoid high points.
In horizontal suction lines, reducers should be eccentric (with the flat side of the
reducer on top).
No obstruction within at least five pipe diameters of the suction flange should be fitted.
Do not install unsupported piping on the pump.
Make sure electrical connections do not impose any stress on the pump unit.
