Hydraulic oil (liquid) on the performance of the seal

Seal theory: in a dynamic and flexible seal between mating surfaces a layer of lubricating film intact. In the normal state, the lubricating film is the use of this layer to achieve the purpose of sealing and extending seal life. In the hydraulic system,  Hydraulic adapters  oil (fluid) of the sealing performance of the sealing member in addition to media / sealing material compatibility, viscosity of the oil, the viscosity change with temperature, reciprocating (rotational) movement velocity, pressure, and the shaft, cylinder or the rod of material, hardness, geometry, surface finish, and the impact of the seal structure of the lubricating film and the film forming characteristics of the factors that affect the sealing effect. In general, to form a continuous lubricating film can achieve the desired sealing effect.