Bitzer Reciprocating piston compressors are divided into two types: open type and semi-hermetic type, The compressor is mainly composed of house, crankshaft, connecting rod, piston valve plate assembly, shaft seal complete, oil pump, capacity regulator, oil filter, suction and exhaust shut-off valve and set of gasket etc. In the field of Compressor spares it takes years to understand a product as well as its technical specifications.