Gate valve sleeve

Details Gate valve sleeve Gate valve sleeve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 3/02 (2006.01)

Patent

CA 2131110

A gate valve sealing unit includes first and second annular seal members that are attached to a main body structure within a passageway that receives and is selectively occluded by a gate. The first and second seal members include first and second rigid mounting hubs to which are mounted first and second annular elastomer sleeves, respectively. Each elastomer sleeve has a continuous lip section and plural axially spaced cavities, the lip sections of the first and second sleeves engaging peripheral margins on opposite sides of the gate when it occludes the passageway and engaging each other otherwise. The first and second mounting hubs include axially outward radial flanges that extend from the respective first and second sides of the main body structure.

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