Stenso - Hovedkatalog 2019

Mountingmethods: 1. radial static 2. radial dynamic with this method, take care that the internal diameter of O-ring nearly corresponds to the rod diameter (internally sealing) or the groove diameter (externally sealing) as the case may be. 3. axial static Direction of pressure is important. If the pressure acts from the inside , the O-ring must fit in with the external diameter of groove, or may need to be compressed by 0,5 -1,5 %. If pressure acts from outside the O-ring is to fit in with internal diameter of groove or O-ringmay need to be stretched by 6% 4. rotary internal sealing To reduce centrifugal forces, the O-ring is to be incorporated in the resting parts / static part of the housing. Then, the internal diameter of O-ring must be 2 - 4 % larger than the shaft and should be arranged as near as possible to the medium to sealed (heat dissipation) Tolerances for O-rings O-rings supplied conform to the following norms AS 568 A, BS 1806, ISO 3601/1, DIN 3771 Tolerance value information only holds good for O-rings in NBR 70 Shore A. Compression of O-rings: dynamic 15%-30% Min. value in hydraulics 8%. These values are dependent on respective cord strength 8%-20%, static For operational pressure > 50 bar (dynamic) or for larger sealing splits, we recommend the use of thrust rings / back-up rings. 1,00 3,10 5,00 7,00 8,10 10,10 14,10 16,10 18,10 20,10 25,10 30,10 35,10 40,10 50,10 60,10 80,10 100,10 120,10 150,10 180,10 250,10 300,10 350,10 400,10 500,10 0,13 0,14 0,15 0,16 0,17 0,18 0,20 0,21 0,22 0,25 0,28 0,33 0,38 0,42 0,54 0,65 0,84 0,95 1,20 1,40 1,80 2,10 2,50 2,80 3,40 4,00 1,00 1,81 2,66 3,56 5,36 7,01 8,01 10,01 3,00 4,90 6,90 8,00 10,00 14,00 16,00 18,00 20,00 25,00 30,00 35,00 40,00 50,00 60,00 80,00 100,00 120,00 150,00 180,00 250,00 300,00 350,00 400,00 500,00 600,00 Diameter: up Tol. + mm. 0,08 0,09 0,10 0,13 0,15 0,17 0,20 0,25 Tol. + mm. cord strength: to 1,80 2,65 3,55 5,35 7,00 8,00 10,00 15,00 to 208 up O-Ring