Adaptors for multistage pump assemblies

Abstract

A pump assembly is configured to fit to a predefined pipe layout defined by supply and discharge interfaces that are positioned in a predefined relation to supply and discharged centerlines, respectively. The pump assembly includes a multistage pump having a plurality of pumping stages mounted along a pump shaft rotating along a rotation axis. The multistage pump has an inlet port and a discharge port, and the multistage pump is aligned horizontally such that the rotation axis is oriented parallel to the supply centerline. The pump assembly also includes an adaptor having a pump interface and a pipe interface, wherein the adaptor has an internal fluid channel extending along a non-linear passageway between the pump and pipe interfaces. The pump interface is coupled to one of the inlet and discharge ports of the multistage pump, and the pipe interface is located proximate one of the supply and discharge interfaces.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application relates to U.S. application Ser. No. 11 / 868,860 filed Oct. 8, 2007, the subject matter of which is herein incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]The subject matter herein relates generally to horizontal multistage pump assemblies, and more particularly, to adaptors for horizontal multistage pump assemblies.[0003]Pump assemblies are provided within pipe systems of residential, commercial or industrial facilities for increasing the pressure and flow of the fluid within the pipe system. The pump assembly is usually fitted to supply and discharge pipes of the pipe system to circulate the fluid under pressure. The typical pump assembly has an inlet that supplies fluid to the pump through a manifold having an impeller chamber, an impeller located in the chamber, a power head (e.g. motor and shaft) to drive the impeller, and a discharge that returns the fluid to the pipe system. The inlet is f...

AI Technical Summary

Benefits of technology

[0005]A need remains for pump assemblies that can accommodate different pipe layouts. A need remains for pump assemblies that can be manufactured at a reduced cost. A need remains for pump assemblies that can reduce inventory.

Problems solved by technology

A problem often encountered is that end-users typically mount the selected pump assembly to an existing pipe system, which has a predetermined pipe layout.

As a result of needing to supply pump assemblies to fit multiple different pipe layouts, pump manufacturers design, manufacture and inventory many different types of pump assemblies, which is expensive for the pump manufacturers.

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