Different Types of Air Compressors

Executive Summary about Air Compressor by Prasanna Sutrave

The two main classification of Air Compressor are:

01) Positive Displacement Type

02) Dynamic Type.

01) Positive Displacement Type Air Compressor.

This types of Air Compressor further classified as

A) Reciprocating Air Compressor.

B) Rotary Air Compressor.

In this type, air is compressed by two rotating or inter meshing rotors. According to the type of construction Rotary Compressor can be further classified as (a) Rotary Screw Compressor (b) Rotary Vane compressor.

(a) Rotary Screw Compressor.

(b) Rotary Vane compressor.

This type of Air Compressor can be further classified as Single Stage or Double Stage Rotary Air Compressor.

02) Dynamic Type Air Compressor.

The Dynamic Type Air Compressors mechanically impart velocity to the air. This type of compressor is further classified as (a) Centrifugal Air Compressor (b) Axial Flow Air Compressor (c) Roots Blower Compressor.

(a) Centrifugal Air Compressor.

(b) Axial Flow Air Compressor.

The Axial Flow Type Air Compressor is essentially a large capacity, high speed machine with characteristics quite different from the centrifugal air compressor. (c) Roots Blower Compressor.

The discharge air pressure obtained from this type of machine is very low.

Secrets to Selecting the Right Air Compressor

Executive summary about Air Compressor by Tommy McGuire

Gain a basic understanding of Compressed Air terminology:

You'll be better informed to talk about your needs with any air compressor sales representative.

DUTY CYCLE:

The Duty Cycle is generally 75% in Reciprocating Compressors and 100%with Screw Air Compressors.

COMPRESSOR LOCATION:

These terms deal with the physical location of your compressor in relation to other equipment, noise level requirements, and ventilation. What ISO Air Quality Classification do you need? Do you need oil-free air? Breathing air? Both of these can be produced with oil-free compressors, or with lubricated compressors and additional filtration equipment. What Class does your air fall into? Plant Air: Air tools, general plant air Instrument Air: Laboratories, paint spraying, powder coating, climate control Process Air: Food and pharmaceutical process air, electronics Breathing Air: Hospital air systems, diving tank refill stations, respirators for cleaning and/or grit blasting

Identify available incoming electrical service before specifying an air compressor. Do you need a back-up compressor?

Apply your knowledge and data to help determine your air compressor specifications.

Now you are ready to take all your information gathered on your air compressor needs and talk to an authorized air compressor distributor. The two most popular types of air compressors are Reciprocating Compressors and Rotary Screw Compressors.

Reciprocating Air Compressors

- Low maintenance cost

- Higher energy operating cost

Rotary Screw Air Compressors

- Medium initial cost

- Lower energy operating cost