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The Salient Features Of Gear Pumps And Metering Pumps


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by: josephpaul
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Word Count: 428
Date: Wed, 7 Mar 2012 Time: 4:07 AM

Gear pumps are the most suitable machines to pump up fluids by displacement. They one of the most widely used types of equipments that are to carry out the functions of hydraulic fluid power applications. These pumps are used to carry out the work of chemical installation to the pumps with certain intensity and velocity. There are mainly two types of variations of this equipment; the internal gear pumps that use an internal and external spur gear and the external gear pumps that use two external spur gears.

These gear pumps are of positive displacement, which means that they pump a fixed amount of liquid for each revolution. Certain gear pumps are manufactured to work as either a pump or a motor. These are generally used in petrochemicals like filled bitumen or pure bitumen, diesel oil, lube oil, crude oil, pitch oil and many more. They are also used to manufacture various chemicals like sodium silicate, plastics, mixed chemicals, isocyanates, acids and etc. They also utilized to make ink and paint, adhesives and resins, pulp and paper and certain edibles like chocolate, fillers, cacao butter, vegetable fats, sugar, edible oils, some animal food, molasses and many more.

Another useful equipment is Metering Pump. It is an equipment which is basically used to pump fluids at convenient flow rates which are clearly precise with a given span of time. The delivery of these fluids in a precise flow rates is also known as metering. The word ``metering pump`` is coined on the use or application rather than the usual sort of pumps that are used.

Even though metering pumps are those equipments which are utilized to pump water, these are usually utilized to pump solutions, chemicals and other liquids. Many of these metering pumps are presumed to be able to pump into a high degree of discharge pressure. They are basically constructed to meter at flows which are actually constant within a variety of discharge pressures. The engineers of this kind of pumps do provide each and every single model of the metering pumps with the highest discharge pressure which rates against each model, and it is guaranteed to be capable enough to pump against each other. The manufacturer of this particular equipment must ensure that the temperature and the pressure ratings are much compatible to each other, for the purpose of pumping liquids.

Most of these metering pumps do have an motor and a pump head. The liquid which is being pumped passes through the head and enters the inter line and comes out through the outlet line.

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