TE86 - Experiment

WATER HAMMER APPARATUS

Demonstrates water hammer and cavitation and the propagation of shock waves at sonic velocity in water.

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The apparatus is made up of a coil of copper pipe 60 m long. The inlet connects to your water supply and the discharge end has a solenoid valve. 

An electronic pressure transducer near to the valve measures the pressure fluctuations in the pipe when the solenoid valve shuts. 

A bypass valve discharges to waste at the inlet end of the pipe. A second adjustable valve is at the discharge from the pipe, downstream of the solenoid valve. This regulates the mean pressure in the pipe before the solenoid valve shuts. 

A Bourdon pressure gauge fitted between the solenoid valve and the downstream control valve shows the pressure in the system. It also allows students to calibrate the pressure transducer.

  • Water hammer
  • Propagation of shock waves in water
  • Velocity of sound in a water filled pipe
  • Transducer calibration
H405A - Ancillary

Dual beam storage oscilloscope with print-out facility.

VDAS H405 - Experiment

A self-contained unit for teaching the principles of pipe surge and water hammer.