Sealing material compatibility of the hydraulic oil

The hydraulic fluid source of particulate contamination of the seal material is incompatible with the hydraulic oil and the resulting "chips" or "debris." Seals for "swelling" is damaged resulting "debris" or "extraction" is not out of a combination of inorganic and filling reinforcing material to security seals damage and failure, while the formation of pollution of hydraulic oil oil deterioration resulting failure.
Hydraulic vane pump system widely used in the state of working pressure greater than 6.9MPa, the wear problem becomes prominent, and therefore the hydraulic fluid used antiwear agent; in order to meet the high temperature heat and flame near the hydraulic system, use of anti- burning phosphate, water - glycol hydraulic fluid, oil, and oil-water emulsions and so on. And should "use" born of the antioxidant, rust and other types of composite additives configured for different uses hydraulic oil (liquid) variety.
Seals have a "swelling" or "extraction" because the hydraulic oil additives of various chemical elements contained in its concentration, based on "like dissolves like" principle, for different cable sealing materials have different impact, but also both sealing material medium resistance.