For different liquid and temperature range, but by choosing to know when the material to control.
By changing or adjusting the axial preload (slot or ring head screw) can adapt to special working conditions.
Due to the stability of forming, it is not sensitive to high pressure peak.
Compared with single seal, the pollution of the medium and the slightly damaged sliding surface is not sensitive.
Due to the contact area and there are several sealing lip, it has excellent sealing performance.
Seals can be cut to facilitate installation. Therefore, in the case of maintenance or repair, there is no need to remove the cylinder completely.