Why is it necessary to purify the compressed air?

     The compressed air discharged from the air compressor contains a lot of harmful impurities, such as water vapor, water mist, oil vapor, oil stains, tar particles, rubber fines, metal particles, fines of sealing materials, harmful chemical odor substances, etc. Condensed water in compressed air will gather in some parts of the system, and this moisture has rusting effect on components and pipes, causing moving parts to jam or wear, making pneumatic components malfunction and air leakage; in some cold areas, moisture freezing will cause pipes to freeze or freeze and crack. The vaporized lubricating oil in the air compressor will corrode the equipment, deteriorate the rubber, plastic and sealing materials, block the small holes, affect some valve actions and pollute the products. Impurities such as dust in compressed air can wear the surface of cylinder, pneumatic motor and pneumatic reversing valve and reduce the service life of the system.
    The air discharged by the air compressor can not be used directly by the pneumatic device, if this compressed air is sent directly to the pneumatic system, then the reliability and service life of the pneumatic system is greatly reduced, the resulting losses often greatly exceed the cost of the air source treatment device and maintenance costs, so we have to choose the air treatment system, the compressed air for purification.