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Horizontal End Suction Pump for Chemical Process, ASME B73.1-2001
Installation, Operation, and Maintenance Manual – CPP21
12. 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
• Remember that the pump must not be moved once the baseplate has been set:
the piping (both suction and discharge) is the one aligned to the pump.
• When aligning, all the elements to be aligned (including the pipes) should be at
the same temperature (ambient).
• It is important to confirm that the pump can be moved out from the baseplate
without cutting or welding (only by adjusting connections and flanges).
• Do not use drifts or cheater bars to force alignment of bolt holes – serious
damage to the pump will result.
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