Patent ID: 6158718
Filing Date: 2000-12-12
Classification: F16K

Abstract:
An improved gate for use in a valve of the type having a body with a vertically oriented body cavity therein and horizontal inlet and outlet fluid flow passageways communicating with said body cavity, the valve having a vertical stem intercepting said body cavity and having a first and a second opposed valve seat within said body cavity the seats surrounding respectively said fluid flow passageways, said gate comprising;a first generally rectangular vertical segment having an outer, substantially planar first segment sealing face, a bottom end and an inner surface divided by a first segment horizontal ledge, a top portion of said first segment inner surface above said ledge being inclined upwardly and outwardly with respect to said first segment sealing face, the first segment being attachable for vertical displacement by the valve stem; anda second generally rectangular vertical segment having an outer, substantially planar second segment sealing face, a top end, a bottom end and an inner surfaced divided by a horizontal second segment ledge, the second segment inner surface top portion above said second segment ledge being inclined upwardly and inwardly with respect to said second segment sealing face, the second segment being mated with and moved by said first segment with the first segment ledge contracting said second segment ledge when said first segment is moved in upward direction, by which the second segment is vertically moved, the segments being forced apart by sliding relationship of said inclined surfaces as said first segment is downwardly displaced by said stem to force said first segment sealing face into sealed contact with said first valve seat and said second segment sealing face into sealed contact with said second valve seat to close said fluid flow through the valve.