A pump is the finest device invented that has been radically enriching millions of lives and industries across the globe. Amongst the constellation of pumps, centrifugal pump is the one which is simplest and extensively used. Plethora of options are available for centrifugal pumps with different types, shapes and sizes because of its wide spread applications. From large to very small, high pressure to low pressure, for handling liquids to gases, today these pumps exist in multitude of forms.
Centrifugal pumps comprise of a high-speed rotating impeller to which vanes are fixed. This impeller helps to move the liquid from one end to another. A tight casing envelops the impeller which has a delivery pipe on one of its sides. These robust centrifugal pumps transfer primer mover's energy into kinetic energy and later into pressure energy of the fluid.
Though, for economical and trouble-free handling of solid-laden liquids, industries today prefer self priming centrifugal pumps. A self priming pump has a large volute that facilitates automatic re-priming without requiring suction and discharge check valves. It operates without any external support by creating and maintaining an adequate vacuum.
In recent times, however, environmental concerns and frequent problems of mechanical seals have given rise to sealless pumps. The sealless pumps have witnessed a meteoric growth in past decade and owing to the developments in its manufacturing processes, their application is rapidly expanding. This has resulted in advanced improvements in the operational safety and consistence performance.
Magnetic drive pump is one such sealless pump widely used for array of applications. This mag drive pump, to create a static shaft seal, utilizes a magnetic coupling. Magnetic force that is generate aligns the outer and inner magnet through a stationary containment shell without the need for a mechanical seal for packing.
Because of the absence of drive seals, the risk of leaks is completely eliminated. Thus,magnetic drive pumps prove to be an extremely beneficial option for Chemical and Pharmaceutical industries where task entails the use of hazardous and corrosive liquids like acids, caustics or flammable liquids like alcohol.
In addition to leak-proof pumping of liquids, magnetic drive pumps offer few more advantages that give these pumps an edge over other pumps that require seals-
- Presence of pump chamber functions as a thermal barrier from the motor thus there is practically no heat transfer.
- Substantial reduction of friction.
- There is an absolute separation of the liquid hence no seepage of liquid into the motor.
Danny is expert content writer on centrifugal pumps and magnetic drive pumps. Hope you enjoy reading this article.
