Cavitation can play a major role in the vibration of pumps during operation.
With the PT 500.17 accessory set, cavitation can be experimentally induced and its influence on the vibration spectrum investigated. The principal elements of the accessory set are a single-stage centrifugal pump and a storage tank. The pump and tank are interconnected by hoses. Valves and manometers in the delivery and intake lines allow various operating conditions to be set. The transparent plastic pump housing provides a view into the interior of the pump during operation. This enables the formation of cavitation bubbles to be observed. Stroboscopic analysis is specially recommended (stroboscope not supplied).
The pump can be driven directly through a flexible coupling on the base system PT 500 or by the PT 500.14 belt drive.
The accessory set is mounted on the base plate of the machinery diagnostic base system PT 500.
To measure and evaluate the experiment, the computerised vibration analyser PT 500.04 is required. It includes all the necessary sensors, a measurement amplifier and analysis software to record the vibration phenomena.
Learning Objectives / Experiments
- Observing and understanding cavitation in a
+ stroboscopically (stroboscope available as
+ by vibration analysis
- Investigation of the operating vibrations of a
- Understanding and interpreting frequency spectra
- Use of a computerised vibration analyzer
* Observation and measurement of cavitation1
* Understanding conditions for cavitation
 Investigation of the conditions for cavitation in pumps
 Single-stage centrifugal pump
 Flow restrictor valves permit the inception of cavitation
 Manometers on intake and delivery side
 Transparent housing
 Pump driven via coupling (PT 500) or with belt drive PT 500.14
 Accessory set for PT 500 machinery diagnostic training system
 Stackable box for storing all components
- max. flow rate at 3300rpm: 17L/min
- max. head at 3300rpm: 12m
- impeller with 3 blades
- min. speed for cavitation: approx. 2240rpm (with
restriction on intake side)
- material: HDPE
- capacity: 20L
- delivery side: 0...4bar
- intake side: -1...1.5bar
Dimensions and Weight
l x w x h : 600 x 400 x 320 mm (box)
Weight : approx. 20 kg
Scope of Delivery
1 set of hoses
1 storage box with foam inlay
1 instruction manual
052.50017 PT 500.17 Cavitation in Pumps Kit