Find and compare diaphragm compressors from leading B2B suppliers using technical specifications. Diaphragm compressors are a type of reciprocating compressor. Instead of a piston-cylinder arrangement and intake device, these compressors have a set of three flexible membranes that are used to compress the gas in a chamber. On the compressor’s down-stroke, gas enters the process head from the compressor inlet. The diaphragms bend on the up-stroke, decreasing the area within the chamber and forcing the gas out of the compressor at the outlet.