Valve and Coupling

摘要

A valve and coupling for joining pipe elements has a valve body captured in a central space defined by a plurality of coupling segments attached to one another end to end. The inner surface of the valve body defines a bore. A liner on the inner surface surrounds the bore and forms a seal with a valve closing member. Circumferentially arranged projections on the segments engage and center the valve body within the central space. The liner has lobes that extend axially in opposite directions. The lobes are compressed between the segments and the pipe elements to form a fluid tight seal when connection members are tightened to draw the segments toward the central space and into engagement with the pipe elements.

主权项

1. A valve, comprising:
a plurality of segments attached end to end surrounding a central space, each of said segments having first and second circumferentially arranged projections extending toward said central space; a valve body positioned within said central space, said valve body having an outer surface facing said segments and an inner surface defining a bore therethrough, said first and second circumferentially arranged projections being engageable with said outer surface for securing said valve body within said central space; a closing member positioned within said bore, said closing member being movable between an open and a closed configuration; a stem attached to said closing member for moving said closing member between said open and said closed configuration; and first and second connection members positioned at opposite ends of at least two of said segments for effecting end to end attachment of said segments.