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How to Select the Right Air Compressor

Air compressors are essential as their services are applied in many industries such as agriculture, construction, chemical manufacturing and the automation and assembly industries. The primary task of an air compressor is to convert the power from an external source mainly diesel engines and electric motors to stored energy which is released in the form of pressured air. Pressurized air from the compressor is used to power other machinery and equipment. It is important that one pays attention when they are selecting a compressor, as any mistake will lead to financial losses to the company. Different types of compressors are available which vary regarding the level of pressure of the air they are delivering, their operation methods and also the capacity of air that a given compressor can deliver. One thus needs to consider the duration as well as the cost of buying the compressor when they are buying one as much as they need to purchase a compressor that will balance capacity of the air they can hold and the level of pressure that they deliver.

Based on their method of operation, there are three types of industrial compressors that one can purchase in the market. The first kind of compressor is the reciprocating compressors which are categorized as positive displacement compressors. In positive displacement compressors, the volume of the air is reduced using pumps which are driven using pistons which are attached to cylinders that compress and also displace the air where the released of has high pressure as a result of the reduced volume. The reciprocating compressors are further divided into direct drive compressors and the belt drive compressors where the belt-drive compressors are preferred due to their high output and durability. The reciprocating compressors are portable and thus suits traders in construction while they are also efficient.

The second type of compressors is the rotary screw compressors which also function by positive displacement process. In their operation, the rotary screw compressors are smoother in comparison with the reciprocating compressors, as they use helical screws and not pistons and thus have less surges and vibration. In comparison with the reciprocating compressors, the rotary screw compressors are easier to maintain, durable and also have a larger air capacity. The rotary screw compressors are used in hospitals, construction sites and factories as they also have variable speeds allowing one to control the airflow.

The third kind if the air compressors that one can buy is the centrifugal compressors which depend on the momentum from a rotating disk to transfer and pressurize air. They are capable of delivering extremely high pressures which are controlled by way of inlet guide vanes. They have wide applications as they are used in automotive, air conditioners and refrigerators.

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