Hydraulic Ram Pumping Using Water Hammer

Hydraulic Ram Pumping Using Water Hammer

• formation and effect of water hammer
• principle of a ram
• transparent tank and visible check valve for optimal observation of the function
Abruptly interrupting the water flow can cause water hammer in the pipeline.
This generally undesired effect is used specifically in special equipment (hydraulic ram) to raise water to a higher level.
Unlike conventional pumps, no additional mechanical drive is required here.
MR-HM 150.15 can be used to demonstrate the formation and effect of water hammer and to study how a hydraulic ram works. The water is fed to the ram via a long pipe at a gradient.
Above a certain water velocity the waste valve in the ram closes automatically,due to the flow forces. This happens suddenly, so that the kinetic energy of the water in the pipe is converted into potential pressure energy. The pressure opens a check valve and the water flows into an air vessel. The air cushion in the air vessel dampens the water hammer and ensures a uniform lift into the elevated tank. After the water hammer has subsided, the waste valve opens due to the dead weight, the water in the pipe starts to flow again and the process repeats itself.
The operation of the waste valve as a function of the weight load, the valve lift and the flow rate is studied. Furthermore, it is possible to shown how the volume of air in the air vessel affects the lift.

Hydraulic Ram Pumping Using Water Hammer ALTEC Laboratory Equipments and ALTEC Laboratory Instruments Tenders.