The function of the Aston Seals SMA 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 of the metal cage prevents moisture from entering the groove.
The material used to produce the wiper element is a nitril rubber with hardness 90 °ShA that ensures a good wear-resistance in case of dry run and an extended service life.
- Easy construction housing
- Tight fit in the groove
- High speed allowed
- Good wear-resistance
- Extended service life
- Low cost solution
- Space-saving construction
SMA Seal Model
SMA 12 20 4
SMA 16 22 3
SMA 16 26 5
SMA 20 28 3
SMA 20 30 7
SMA 22 28 5
SMA 22 32 5
SMA 25 35 7
SMA 30 40 5
SMA 32 45 7
SMA 35 45 7
SMA 40 50 5
SMA 40 50 7
SMA 45 55 7
SMA 45 60 7
SMA 50 60 7
SMA 50 65 5
SMA 55 65 7
SMA 60 70 7
SMA 65 75 7
SMA 70 80 7
SMA 75 85 7
SMA 80 90 7
SMA 90 100 7
SMA 95 105 7
SMA 100 110 7
SMA 110 120 7
SMA 120 130 7