Why are compressors staged?

Staging. Use of multiple compression stages raises the refrigerant pressure in the hot gas discharge of the compressor. This allows a higher condensing temperature which, while lowering the refrigeration efficiency, offers two benefits.

What is a stage of compression?

A compressor stage is defined as one impeller, the stationary inlet and discharge passages known as the inlet guide vanes and the diffuser respectively and the seals, namely the eye labyrinth seal and the shaft labyrinth seal.

What is a low pressure air compressor?

Low-pressure air compressors (LPACs), which have a discharge pressure of 150 pounds per square inch (10 bar) or less. Medium-pressure compressors which have a discharge pressure of 151 to 1,000 pounds per square inch (10.4 to 68.9 bar)

Which compressor is used for low pressure?

Low Pressure Double Acting Water Cooled Reciprocating Compressors. Cal’s low pressure, double acting, water cooled, single stage reciprocating compressors have a long and proven history of efficient performance in many applications.

What is a high pressure air system?

A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure. Swirling in the opposite direction from a low pressure system, the winds of a high pressure system rotate clockwise north of the equator and counterclockwise south of the equator.

What is the purpose of compressor?

The purpose of the compressor is to circulate the refrigerant in the system under pressure, this concentrates the heat it contains. At the compressor, the low pressure gas is changed to high pressure gas.

What is the difference between 2 stage and single stage air compressors?

The fundamental difference between a single and two-stage air compressor is the number of times the air gets compressed. In a single-stage, the air is compressed one time; in a two-stage, it is compressed twice for double the pressure.

What’s the difference between single stage and 2 stage air compressor?