Plastic sealing body has sealing body and guide body as one combined element

摘要

The sealing body is made of a plastic material, or material alloyed with plastic, to seal a piston (11) in a cylinder (12) against fluids. The sealing body and the guide body are made as one combined element. The pressure for the sealing function is provided by a rubber-elastic body. The running surface (15) is divided by a groove (16) round it into two sealing surfaces (17a, 17b).