FOR HYDRAULIC OR PNEUMATIC DRIVEN WORK UNITS, BV LABOUR CYLINDER OR INTENDED seal structure VALVES FOR SEPARATION OF SEALING THE JOINTS BETWEEN axially RELATIONSHIP BETWEEN MOVING PARTS.

摘要

The sealing ring for the piston (2) has a C-or an I profile with wide inner and outer support surfaces for maximum contact with the piston and the cylinder wall. The middle section of the ring has a reduced thickness (6) to allow the ring to flex when moving in either direction. The outward facing surfaces of the ring are slightly convex. They provide maximum sealing control and a long life. Lateral support for the piston is improved and the ring covers most of the ring gap width.