A SEALING ELEMENT FOR A GATE VALVE

摘要

An elastomeric sealing element for a gate valve is described, the sealing element being generally annular in shape and having a mounting region and an abutting region; and a narrowed portion being provided between the mounting region and the abutting region to allow deformation of the sealing element to facilitate introduction of a gate between the sealing element and another sealing element; and wherein the narrowed region of the sealing element includes an external annular recess disposed around an outer surface of the sealing element. Gate valves incorporating sealing elements are also described.