U1 design is based on PN-72/M-73095 and applies in hydraulic drives with working pressure up to 16 MPa with the possibility of working on the piston or piston rod of the hydraulic cylinder.

The ring is shaped so that when assembled in the structure it provides initial clamp and thus retains tightness without pressure. With increasing pressure of contact surface, which is gradually increased over whole height contact surface pressure is gradually increased over the whole height of the seal. The increase of pressure above the limit value for the material causes to flow it through the gap on the dorsal side.

Detailed information available in the directory: