Abstract: A packing member having an annular body with a circular outer wall and circular inner wall, with first and second end walls extending between the inner and outer walls includes a relatively soft upper portion formed from an elastomeric polymeric material having a Shore A hardness of between about 65 and 80 and a fabric reinforced, harder lower portion formed from elastomeric polymeric material having a Shore A hardness greater than the Shore A hardness of the upper portion. A groove, having a lower wall extends axially into said annular body through the first end wall and defines a plane perpendicular to an annular axis. The upper portion of the annular body includes inner and outer sealing lips formed adjacent to at least a portion of the groove, the outer sealing lip extending vertically beyond the inner sealing lip and the inner sealing lip having an inner sealing edge intersected by the plane defined by the lower wall of the groove.

Abstract: A packing member having an annular body with a circular outer wall and circular inner wall, with first and second end walls extending between the inner and outer walls includes a relatively soft upper portion formed from an elastomeric polymeric material having a Shore A hardness of between about 65 and 80 and a fabric reinforced, harder lower portion formed from elastomeric polymeric material having a Shore A hardness greater than the Shore A hardness of the upper portion. A groove, having a lower wall extends axially into said annular body through the first end wall and defines a plane perpendicular to an annular axis. The upper portion of the annular body includes inner and outer sealing lips formed adjacent to at least a portion of the groove, the outer sealing lip extending vertically beyond the inner sealing lip and the inner sealing lip having an inner sealing edge intersected by the plane defined by the lower wall of the groove.

Abstract: A packing member having an annular body with a circular outer wall and circular inner wall, with first and second end walls extending between the inner and outer walls includes a relatively soft upper portion formed from an elastomeric polymeric material having a Shore A hardness of between about 65 and 80 and a fabric reinforced, harder lower portion formed from elastomeric polymeric material having a Shore A hardness greater than the Shore A hardness of the upper portion. A groove extends axially into said annular body through the first end wall and defines a plane perpendicular to an annular axis. The upper portion of the annular body includes sealing lips formed adjacent to at least a portion of the groove, the outer sealing lip extending vertically beyond the inner sealing lip and the inner sealing lip having an inner sealing edge. The inner sealing lip is inclined inwardly to form the sealing edge for sealing engagement when in slidable contact with a separate moveable part.