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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 is used in the industries to power machinery and equipment. When selecting the compressor to purchase, there is the need to be keen as they are costly equipment and any mistake will cost the company huge amount of finances. 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. As much as one pays attention to the ability of the compressor to deliver air at high pressure and also the capacity of the air that they deliver, one also needs to identify the cost of purchasing a particular air compressor and also the durability of the equipment.

When one seeks for the compressors by their operations methods, there are three kinds of compressors that are available in the market. One kind of the compressors is the reciprocating compressors which work 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. There are two kinds of the reciprocating compressors as one can choose between the direct drive compressors and the belt drive compressors but most buyers prefer purchasing the belt drive compressors as they are durable and also have high output. The reciprocating compressors are not only effective but also portable and suits the construction traders.

The second type of compressors is the rotary screw compressors which also function by positive displacement process. The rotary screw compressors are reliant on helical screws rather than the pistons and thus have less surges and vibration in comparison to the reciprocating compressors. One can also decide to purchase the rotary screw compressors as they are easier to maintain and are also durable and in comparison with the reciprocating compressors they have 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 last kind of the compressors is the centrifugal compressors which rely on the momentum gained through rotating a disk to pressurize and transfer air. They are capable of delivering extremely high pressures which are controlled by way of inlet guide vanes. They are used in refrigerators, automotive and air conditioners.

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