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Trade press article — Pumps & Systems

Making Shaft Lift Adjustments in Vertical Turbine Pumps

Best practices for safe operation and easy accessibility.

June 2020
Number of views: 7989
Article rating: No rating

Gene Vogel
EASA Pump & Vibration Specialist

Vertical turbine pumps (VTP) commonly have rotors with multiple mixed-flow impellers (sometimes 12 or more) that are supported by a vertical pump motor. Such designs offer a lift adjustment for raising or lowering the pump rotor to properly position the impellers within the bowl. Depending on the type of pump, this may be critical for maximizing pump efficiency and could have a significant impact on motor load (current) and reliability. Given the importance of VTP lift adjustments, it is necessary to recognize that procedures vary with the characteristics of the pump and motor.

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ANSI/EASA AR100

More information on this topic can be found in ANSI/EASA AR100

Section 2: Mechanical repair

Related Reference and Training Materials

Fundamentals of Pump Repair

Section 4: Vertical Turbine Pumps

Categories: Technical topics, Pumps, Articles in industry publications, Pumps & Systems

Tags: Vertical turbine pumps

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EASA Technical Manual cover

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