Patent ID: 8800965

Claim:
A valve ( 100 ), comprising: a valve body ( 102 ) defining a first central bore ( 104 ) for passage of fluid there through, the central bore ( 104 ) having a longitudinal axis, the valve body ( 102 ) also defining a second central bore ( 132 ) perpendicular to the first central bore ( 104 ) along a central axis ( 124 ), wherein the second central bore ( 132 ) is configured to receive an actuator rod ( 134 ); a rigid seal ( 150 ) installed within the valve body ( 102 ) along the first central bore ( 104 ), wherein the seal ( 150 ) comprises: a first seal member ( 152 ) comprising an annular ring portion ( 156 ) and a hub portion ( 158 ) extending from the annular ring portion ( 156 ), wherein the hub portion ( 158 ) includes a first radial bore ( 170 ) and a second radial bore ( 172 ) aligned with the second central bore ( 132 ) along the central axis ( 124 ); and a second seal member ( 154 ) including an annular ring configured to engage a distal end ( 160 ) of the hub portion ( 158 ) and create a sealing engagement between the hub portion ( 158 ) of the first seal member and the annular ring of the second seal member by a complementary engagement structure wherein one seal member extends into the other seal member when a compressive force is applied to the first ( 152 ) and the second seal members ( 154 ), wherein the sealing engagement occurs at a seal interface ( 180 ) and the entire seal interface ( 180 ) is spaced a distance, D, from the central axis ( 124 ).