Centrifugal Pumps

Pump Sizing and Selection

Synopsis
Pumps are often treated as commodities, and providing they produce enough volume, are ignored. However, there are very few plants where pumps are not a headache – maintenance problems or mysterious non-delivery or even periodic catastrophic pump destruction. This 2-day workshop shows how pumps should be sized for a particular application; the reasons for pump problems, and overcoming them through proper sizing, installation and operation.

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Next course: 24/25 October 2019  Cost: R 5 500,00 (no VAT) CPD Points: 2

Contents
Pump Types: Positive displacement vs Centrifugal; Radial- Mixed- and Axial-Flow pumps
Cavitation: NPSHA; NPSHR; and calculation to demonstrate avoiding cavitation
Pump Curves: Understanding these, and applying them correctly
Static and Dynamic Heads: Friction losses and system calculations
Pumps in Parallel and Series: Overcoming myths, and working out resultant flow
Effects of Higher Viscosity Liquids: Establishing revised parameters
Installation, Commissioning and Verification of Pump Parameters
Fine Tuning: Use of Variable Speed Drives; Impeller Trim; Throttling; Bypass
Computer Programs for pump selection
Discussion on pump problems, with potential solutions

Outcomes
Selecting pumps for operation close to the Best Efficiency Point, for maximum up-time
Monitor pump efficiency, availability and reliability
Trouble-shoot pump problems

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