22KN Rod and Piston Seals

The Chesterton R22KN are single-acting, continuous U-Cup designs. The special lip design provides an optimal amount of radial sealing load with excellent tribological and sealing characteristics, resulting in minimal frictional resistance and low heat generation. The R22KN U-Cup reduces both breakaway force and dynamic frictional force during operation.

The optimum seal design facilitates controlled pressure distribution through the entire seal component, while the proper expansion space provides free space for deformation under pressure, optimizing seal contact area on the sliding surface.

The positive rake lip profile wipes contaminants away from the mating surface while in operation, thus prolonging seal and equipment service life. This seal design is offered as a rod, piston, and face seal and provides outstanding performance in light- to heavy-duty hydraulic and pneumatic applications.

The 22KN design is manufactured using a machining process that allows the flexibility to create any size based on equipment dimensions. A number of unique designs have been derived from the original R22KN to address specific needs and applications in the market. These include designs to address pressure reversal, pressure spikes, and system vacuuming.