PIPE SURGE & WATER HAMMER APPARATUS

About PIPE SURGE & WATER HAMMER APPARATUS

Specification:

PIPE SURGE & WATER HAMMER APPARATUS

Pipe surge and water hammer are tworelated but independent phenomena which arise when fluid flowing in a pipe isaccelerated or decelerated. The associated pressure transients can be damagingto pipe work or components and systems must be designed to avoid or with standthem.

The equipment designed by clearlydemonstrates the different effects resulting from gradual or instantaneouschanges in fluid velocity. Effect of initial fluid velocity can also beinvestigated. Pipe surge resulting from a gradual change in fluid velocity isclearly seen as fluctuating changes in head in a surge shaft.

Water hammer resulting from a rapidchange in fluid velocity is clearly seen as large changes in pressure monitoredusing a pair of transducers and indicated using an oscilloscope. The equipmentcomprises two stainless steel pipes connected to a constant head tank. Aservice module provides the water supply to the head tank and also incorporatesa volumetric tank for flow rate measurement, sump tank, circulating pump andflow control valve.

Water enters the two test pipes viathe constant head tank and discharges into the volumetric tank. A dump valve inthe volumetric tank returns the water to the sump tank.

The pipe surge test sectionincorporates a clear acrylic surge shaft to enable visualization of itsoscillatory characteristics to be demonstrated. A metric scale on the shaftpermits the height of the oscillations to be measured. The test pipe terminateswith a lever operated gate valve and separate flow control valve.