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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 air compressors function by converting power from an external source, primary an electric motor and diesel engines where they convert the electric power to the stored energy released in the form of pressurized air. The pressurized air is then transferred where it is used to power tools and machinery. 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. When one is purchasing an air compressor, they also need to determine the cost of a given air compressor, the durability and also the ability of the compressor to balance the capacity of the air they hold and the pressure levels of the air that they release.

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. They function by reducing the volume of the air thus increasing the pressure as they have pumps driven using pistons which are attached to the cylinders that compress and displace the air. 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 portable and thus suits traders in construction while they are also efficient.

The second type of the air compressors which are almost similar to the reciprocating air compressors are the rotary screw compressors which also function as positive displacement compressors. 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. 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. Some have variable speeds meaning that one controls the airflow and they are used in construction sites, factories and hospitals.

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. Some of the applications of the centrifugal compressors include in automotive, air conditioners and refrigerators.

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