Which type of compressors is known for having no pulsations?

Centrifugal compressors are recognized for their ability to deliver a continuous stream of compressed air or gas without pulsations. This design utilizes an impeller to accelerate the gas and a diffuser to convert that kinetic energy into pressure. The smooth, continuous operation is achieved as the gas enters and exits the compressor in a steady flow, minimizing the fluctuations in pressure typically associated with reciprocating compressors.

In contrast, other types of compressors, such as reciprocating compressors, inherently produce pulsations due to their cycle of suction and compression. Additionally, rotary compressors and screw compressors may exhibit some pulsation but generally to a lesser extent than reciprocating types. However, they still do not achieve the same level of smooth operation that centrifugal compressors provide. Thus, the centrifugal compressor stands out as the option with no pulsations, making it particularly suitable for applications requiring consistent pressure and flow.