dichtvorrichtung in vane or klappenventilen

摘要

The valve seal moves relative to the housing. The valve housing or the seals (1, 4) have channels (7, 8) connected to the sealing surface. Through this channel is introduced grease or another agent for improving the sealing effect within the gap between the sealing surfaces. The gap is formed when the sealing faces approach on closing, between the valve closure and the housing seat.