The function of the Aston Seals SAG wiper ring is to prevent introduction of dust, dirt and foreign matter into the system.
This is achieved by a special wiper lip which produces a very effective cleaning action, prevents the development of scores, protects the guiding parts and extends the service life of the axial moving rod seals.
A flush fitting with the outside diameter reduces moisture entering the groove.
The internal ribs give stability and prevent twisting and sticking of the wiper in the groove.
The material used to produce this wiper is a polyurethane compound that ensures excellent properties in case of dry run, an increased wear-resistance and an extended service life due to good resistance against ozone and radiation caused by weather conditions.
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