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What are the basic reciprocating compressor components?

Many models of stationary reciprocating compressors (piston driven) have similar components. 

Please see the image below for the names of the various parts used to build a compressor. 

This compressor is a model 2475, two stage, electric unit. 

Other models and option packages can have similar and/or different components.  You can find a parts breakdown and operators manuals for other models at: