What is PET compressor?

What is PET compressor?

A large amount of air is needed to blow PET preforms into bottles. The compressors that compress atmospheric air into compressed air must withstand extreme conditions such as high pressures, heat and continuous operation. Since the early 2000s, centrifugal compressors have also been found on the PET bottling market.

What is the disadvantage of the reciprocating compressors?

One of the drawbacks of the reciprocating compressor is that it cannot self-regulate its capacity against a given output pressure, it will continue displacing the gas until told not to do. The size of compressor is very large for a given capacity.

What is an example of a reciprocating compressor?

Reciprocating compressors can be categorized as: cylinder lubricated, example trunk-piston type and cylinder nonlubricated example dry running piston tings and ringless type (labyrinth-piston type).

What is reciprocating compressor used for?

Reciprocating compressors (also known as piston compressors) are generally used to move gas at increased pressure. The main elements of the compressor are one or more cylinders, and pistons which move within them, rather like in an internal combustion engine.

What are the advantages and disadvantages of reciprocating compressors?

What are the advantages and disadvantages of a piston compressor?

Advantages Disadvantages
Low service costs Compressed air pulses are generated during operation
Mobile Low efficiency approx. 65-70%
Simple control High costs of compressed air production
High noise level

What is the biggest disadvantage of a reciprocating compressor?


  • There are many moving parts, complex structure, heavy maintenance work and high maintenance cost.
  • Speed Limited.
  • The wear of piston ring, the wear of cylinder and the transmission mode of belt make the efficiency drop rapidly.
  • Loud noise.

What are the advantages and disadvantages of centrifugal compressor over reciprocating compressor?

Centrifugal compressors are much better for low pressure and high discharge operations because they work at a constant rate. The pressure ratio is also much lower at around one and four, while reciprocating compressors are around five and eight.

What are the 4 types of compressor?

The four most common types of air compressors you will see are:

  • Rotary Screw Compressor.
  • Reciprocating Air Compressor.
  • Axial Compressor.
  • Centrifugal Compressor.

What is difference between pump and compressor?

Sometimes the words “pump” and “compressor” are used interchangeably, but there is a difference: A pump is a machine that moves a fluid (either liquid or gas) from one place to another. A compressor is a machine that squeezes a gas into a smaller volume and (often) pumps it somewhere else at the same time.

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