The diaphragm compressor is a special structure of the volume-type compressor with high compression ratio, good leaktightness, compressed gas without lubricating oil and other solid impurities contaminated features, So it'suitable for high purity compression, rare, valuable, inflammable, explosive, toxic, harmful, corrosive, and high pressure gas If it is used for compressed oxygen, all kinds of corrosive and other special gas, users need to give special order