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Centrifugal Pump Test Rig devised as per the latest technologies is used for examining the performance of the centrifugal pump at distinguished speeds and heads. For precise measurement of flow rate of water, this Centrifugal Pump Test Rig is comprised of measuring tank & stop watch. The efficient and faultless performance of this test rig is supported by electrical motor, pipe fitting, supply tank along with connected vacuum and pressure gauges on suction and delivery ends of pump.
The Centrifugal Pump Test Rigs are given with vacuum gauges on suction pipes and the pressure gauges on discharge pipes. The gate valves are utilized to correct the head on the pump. The emission is measured by water flow meter and measuring tanks. The input power is calculated by energy meters. The Centrifugal Pumps work as the turned of an inward radial flow reaction rotary engine. This means that the rate of flow in these pumps is in the radial outward directions. The centrifugal pump work on the law of forced vortex flow that means that when a definite mass of liquid is turned by the external torques, the outgrowth in pressure head of the turning liquid takes place. The outgrowth in pressure head at any factor of the rotating liquid is proportionate to the square of digressive speed of the liquid at that factor. Hence at the outlet of the impeller, whose length is more, the growth in pressure head will be more and the fluid will be released at the outlet with an advanced pressure head. Due to these high pressure heads, the liquid can be raised to an advanced level.
These are the rotodynamic machines, which acquire dynamic pressure of liquid by worth of rotation for pumping of liquid to a higher height. In centrifugal pump, liquid in the impeller of a pump is made to rotate by external force, so that it is through away from the center of rotation. As constant supply of liquid is made available at the center liquid can be pumped to higher level.
Main Parts of Centrifugal Pumps:-
1. Impellers: - The Rotating Part of centrifugal Pumps are called “Impellers”. These consist of the series of backward curved vanes. The Impellers are mounted on the shafts which are attached to the shafts of the electric motors.
2. Casing: - The Casing of the Pumps are kindred to the casing of the reaction turbine. These are the airtight Passages encompassing the impellers and are configured in such a way that the kinetic energy of the water released at the outlet of the Impellers are changed into pressure energy before the water leaves the shell and get into the delivery pipes.
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