Importance

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Abstract

A method of installing a valve seat in a valve body wherein the valve body is provided with an annular, radially inwardly extending rib defining a circular opening through the valve body and the seat member is an annular member having an annular extending web, a first annular flange extending radially outwardly from a first end of the web and a second annular flange extending radially outwardly from a second end of the annular web to thereby define an annular extending, outwardly opening channel which receives the rib in the body, the method comprising rigidly positioning the valve body forming a loop of flexible cord around the seat, the loop being at least partially received in the channel to produce first and second segments of the cord, positioning the seat partially in the body such that a portion of the rib which is received in a portion of the channel, extending the first and second segments of the cord through the valve body out of the second end of the valve body, simultaneously pulling the first and second segments in a direction which urges the engaged portions of the seat and the rib together while effecting radial collapse of the seat sufficient to allow the second flange member to pass through the opening defined by the annular rib and then removing the first and second segments of the cord by pulling in a direction away from the second end of the valve body and from the initial engaged position of the rib and the seat.

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First Claim