Stenso - Hovedkatalog 2019

Mountingmethods: 1. Radial static 2. Radial dynamic With this method, take care that the internal diameter of X-ring nearly correspon- ding to the rod diameter (internally sealing) or stretched on the groove ondiame- ter (externally sealing) as the case may be. 3. Axial static Please notice that the direction of pressure is important. If the presssure acts from the inside, the X-ring must fit in with the outer-diameter of the groove, or may need to be compressed by around 1 %. If pressure acts from the outside, the X-ring is to fit in with the internal diameter of the groove, or X-ring the need a stretch by 2-5 %. 4. Rotary Internal Sealing To reduce centrifugal forces, the X-ring is to be incorporated in the resting static parts of the housing. Then the internal diameter must be 2 - 5 % larger than the shaft and should be arranged as near as possible to the medium to be sealed. (heat purgation) Stretch of X-ring: dynamic 1% - 10%, static 5% - 15 % These values are dependent on respective cord strength for larger seals shatter. We recommend the use of Back-up rings if pressure is more than 5 Mpa (50 Bar) in the operation of dynamic otherwice the X-ring could extrude. XR X-ring 256