UPN. Rod and piston seal with energizing element UPN

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1 Rod and piston seal with energizing element MATERIAL 1 1 Type Polyurethane Designation SEALPUR 93 Hardness 93 ShA 2 2 Type Nitril Rubber NBR Designation RUBSEAL 70 Hardness 70 ShA Pressure 400 bar FIELD OF APPLICATION 0 bar Speed 0.5 m/s 0 m/s Temperature 40 C +100 C C Fluids Hydraulic oils (mineral oil based) For other fluids contact our technical department The seal type Aston Seals is the natural further development of the UP seal. It is a high performance all purpose lipseal suitable for both rod and piston which combines the advantage of a highly elastic rubber and the abrasion resistance of polyurethane. The profile assures a good reaction against shock pressure peaks and low friction in all conditions. The energizing O-Ring guarantees a good sealing performance in the low pressure range. The material used to produce this seal is a polyurethane compound that ensures excellent properties on wear-resistance, extended service life and resistance against extrusion. Good sealing performance as well as at low pressure Suitable for both rod and piston Economical solution Excellent wear-resistance Extended service life High resistance against extrusion Good temperature resistance Easy installation without expensive auxiliaries Dynamic surface Static surface SURFACE ROUGHNESS Ra 0.3 µm Rt 2.5 µm Ra 1.6 µm Rt 6.3 µm GAP DIMENSION g The largest gap dimension appearing in operation on the nonpressurised side: 50 bar 100 bar 200 bar 1.20 mm 0.80 mm 0.40 mm 300 bar 400 bar 0.25 mm 0.17 mm LEAD-IN CHAMFERS d Smin less mm mm over mm After mounting the seal in the housing, verify that the energizing element is positioned correctly. To avoid damaging the sealing lips during installation, housing must have rounded chamfers. Sharp edges and burrs within the installation area of the seal must be removed. The above data are maximum values, they may be maintained for short periods and can not be used at the same time simultaneously.

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