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Standardized with the materials of high performance PU 93 Shore A, UNP/UHP are used very widely in hydraulic cylinders. Having shorter outer sealing lip UNP/UHP nutrings are desinged especially for piston applications.          

Technical Data    
Pressure:  400 bar    
Temperature: -35  to +100    
Speed: 0.5m/s     
Media: Hydraulic oils (mineral oil-based)     
Material: PU    
Hardness: 93 2 Shore A     
Color: Blue/Green    
High abrasion resistance    
Insensibility against shock loads and pressure peaks    
Low compression set    

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