Features:
Visualization of cavitation effects in a transparent pump
Continuously adjustable pump speed
Closed water circuit

One of the most common causes of cavitation effects is fast-moving objects in the water, such as the impellers of a centrifugal pump. If cavitation occurs on the impeller, the high mechanical stress sometimes results in the separation or deformation of particles from the surface. In addition to the impeller geometry, intake pressure and temperature are also relevant for the occurrence of cavitation.
Tesca Cavitation in Pumps Apparatus is used to demonstrate cavitation effects  on impellers of centrifugal pumps. The pump housing and the pipe at the inlet side of the pump are made  of transparent  plastic  in  order  to  visualize  the cavitation processes. It is possible to capture excellent images of the vapor bubbles by taking photographs with short exposure times (flash). In order to influence the flow velocity at the impeller  blades,  the  speed  can  be  changed within a wide  range via a frequency converter. Valves at the inlet and outlet of the pump enable the flow rate and    pressures to be adjusted accordingly.
Pressures on the inlet and outlet side are displayed on two manometers. Also displayed is the water temperature in the tank, flow rate, and pump speed. The water temperature can be controlled and the  tank is fitted with a heater. The water is cooled via the water supply.

Specifications:
1. Visualization  of  cavitation  in  centrifugal pumps
2. Open impeller to observe the blades during operation
3. Continuously adjustable pump speed via frequency converter
4. Temperature control via heater and external cooling via the water supply
5. Flow measurement using a rotameter
6. Display of the pressures at inlet and outlet side of the pump via manometers
7. Digital display of speed, water temperature in the return, and flow rate
8. Closed    water    circuit    with    tank    and temperature display

Technical Specifications:

Centrifugal pump with drive motor Ÿ Power consumption: 0,37kW
Ÿ Speed: 500…3300min-1 Ÿ Max. flow rate: 70L/min Ÿ Max. head: 13m
Tank: 20L Measuring ranges
Pressure (inlet): -1…0bar
Pressure (outlet): 0…1,5bar
Temperature: 0…100°C
Flow rate: 10…140L/min

Experiments:
Cavitation formation
Observation of cavitation effect
Effects of speed, inlet pressure, flow rate, and temperature affect cavitation

Requirements:
Water connection 300L/h, drain
Mains Power 220 – 240V @ 50Hz, 1Ph