Challenge

Issue:

Due to high pressures and tough working conditions, leaking at the valve ports is a common problem that many hydraulic valves and control units face. Elastomer based O-Rings are the root cause of these leakages. With time, pressure and temperature, elastomer based materials will have a permanent deformation – causing the O-Rings to loose their shape and eventually their sealing function.

Solution

To increase the life expectancy of these hydraulic valves and reduce maintenance costs, Oz Seals has improved on the sealing function of the traditional O-Ring by changing it to a rectangular ring.

The new valve seal significantly increases the life expectancy of hydraulic valve systems. Manufactured from super polymer, the rectangular ring will have a higher resistance to extrusion, twisting and compression. The improved fit within the groove ensures that the valve seal can be easily installed or assembled as there will be no equipment modification needed. A better grade of material also increases its sealing life as there will be less deformation and internal stress.

Results

Client Reported:

• Oz Seals successfully manufactured a custom valve seal.
• Has no leakages since the seal replacement, It has increased productivity and reduced maintenance costs.
• Currently, the valve seal has been performing well and remain maintenance free.