Restore Clearances

The amount of excess leakage flowing through worn wear rings can be determined by comparing the “as new” (or factory) with the current (worn) power vs. flow curves. As the clearance between pump wearing rings increases over time, the amount of flow that recirculates within the pump, from the discharge of the impeller to its suction, also increases.This increases the gross flow through the impeller, while reducing the net flow out of the pump; increasing power consumption and in some cases increasing NPSHR. The power curve, therefore, shifts to the right by the amount of this excessive leakage. This is a good way of diagnosing deterioration in pump efficiency due to enlarged internal clearances.
Subject to an engineering review, we can also upgrade to composite materials or even a ceramic option for abrasive services


United Pumps Australia control manufacture with a detailed Quality Management System, accredited by Lloyd’s Register Quality Assurance Limited to AS/NZS ISO9001


31 Western Avenue, Sunshine, Victoria 3020
P.O. Box 348, Sunshine, Victoria 3020
Phone: +613 9464 9500  Fax: +613 9312 6371

Registered Name: U.C.P AUSTRALIA  Pty Ltd
Commonly Known As: U P A
ABN: 37 006 317 979

Safety Health & Environment: ISN Supplier ID 400-166-286