Abstract
This chapter discusses installation of pumps. It also discusses the erection of centrifugal pumps. A bedplate of steel or cast iron is provided for a small or medium pump and its driver. For larger pumps, it is usual to provide a separate bedplate or soleplate for the pump. Pump and driver are generally connected by a flexible coupling of the pin type with rubber bushes for small/medium powers and of the gear or membrane type for the largest power. The coupling allows free axial movement but should not be regarded as permitting any out of alignment. Axial freedom is essential because drivers and pump have individual axial locations that may vary because of wear of balance surfaces or because of temperature effect. In general, pumps rest on prepared reinforced concrete bases with provision for holding down bolts. The pump and driver are supplied bolted but not dowelled to a bedplate or to soleplates. The bedplate is then lowered to the concrete foundation and accurately leveled by steel wedges prior to the pouring of cement grout.
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