Similar to multistage centrifugal pumps, centrifugal compressors, as shown in Figure 10-9, use a series of rotating impellers to impart velocity head to the gas.…

Screw compressors are rotary positive displacement machines. Two helical rotors are rotated by a series of timing gears as shown in Figure 10-8 so that…

Rotary compressors are positive-displacement machines. Figure 10-7 shows a typical vane compressor. The operation is similar to that of a vane pump. A number of…

Low-speed units are typically integral in design as shown in Figure 10-4. “Integral” means that the power cylinders that turn the crank shaft are in…

A compressor may have any number of stages. Each stage normally contains a suction scrubber to separate any liquids that carry over or condense in…

A reciprocating compressor is a positive-displacement machine in which the compressing and displacing element is a piston moving linearly within a cylinder. Figure 10-1 shows…