The Working Principle Of Petroleum Rubber Oil Seal.

Rubber oil seal, usually called "face seal" vividly, is a device that avoids the outflow of harmful fluid. In terms of working principle, it mainly improves the sealing effect by means of the pressure of the fluid and the action of magnetic force, so that the sealing effect perpendicular to the axis of rotation is improved. The end faces remain snug and slide against each other, improving the quality of the seal. The rubber oil seal used in the petroleum field is basically the same as the ordinary rubber oil seal in principle. Under the action of elastic force and medium pressure, the non-rotating ring is tightly attached to the rotating ring. Relatively sliding, the radial flow of the medium will be blocked, and the friction pair formed at this time is the main seal of the rubber oil seal. The downward push of the spring and the medium pressure will compensate for the damage of the friction pair through friction, so that the sealing end faces can be kept in close contact. The oil sealing effect of the rubber oil seal can also compensate for the gap between the ring and the shaft to avoid leakage of liquid from the gap. A non-compensating ring auxiliary oil seal is used between the non-compensating ring and the gland, which can prevent the medium from flowing out from here. In practical applications, the auxiliary oil seal of the petroleum rubber oil seal does not have a relative motion state, which is a static seal. In addition, in the selection of oil seals, "O" rings are generally selected, and gaskets can also be used for processing.