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The compact piston seal KDAE has got a central element in high polyurethane elastic modulus and two side anti-extrusion rings in elastomer with high hardness. Thanks to combination of the two materials, the seal remains very stable even in the presence of high pressure. Abrasion, with the use of polyurethane, it is by far lower than using of rubber and increases durability of the piston itself. The friction of first release and in exercise, thanks to the special geometric profile of the seal, it is more performing than the NBR seal.
