Which type of compressor typically has a longer operational life?

Rotary screw compressors are known for their longer operational life due to their design and the way they handle air compression. These compressors use a pair of helical screws that continuously rotate, drawing in air and compressing it without the need for valves. This design minimizes mechanical wear because there are no reciprocating parts like pistons, which experience greater stress and friction over time.

The continuous operation of rotary screw compressors also means they operate at lower speeds and under less strain compared to other types. This reduces the overall heat generated during the compression process, which is a significant factor in the wear and tear of any compressor. The durability of the materials used in rotary screw designs contributes further to their longevity.

In contrast, other types of compressors, such as reciprocating and piston compressors, have more wear-prone components due to their mechanical action, leading to more frequent maintenance and potentially shorter lifespans. Diaphragm compressors, while having specific advantages for certain applications, are not typically focused on the same level of durability as rotary screw compressors.