A chemical plant is another popular industrial use for reciprocating compressors. A Diaphragm Compressor for Sale in chemical plant is an industrial plant that processes large quantities of chemicals. Certain materials are made better by chemical and biological transformations. Other than the compressor, there are many other technologies, machineries and processes that help the industry work at its best. Sometimes, the chemical plants use the same processes as the ones that power oil refineries or power plants.