ダイヤフラム弁,申请号JP20120191270-传众专利搜索

ダイヤフラム弁

申请公布号：JP5779559(B2)

申请号：JP20120191270

申请日期：2012.08.31

申请公布日期：2015.09.16

分类号：F16K27/00;F16K7/14;F16K7/16;F16K7/17

主分类号：F16K27/00

摘要：<p>A fluid inflow passage 3 is made up of an inner communication portion 11 having an upper end opening that leads to a center portion of a bottom surface of a recess 5 in a body and a lower end surface that is closed and an outer communication portion 12 having one end that leads to the inner communication portion 11 and the other end that forms a fluid inlet. The inner communication portion 11 has a column-like protruding portion 13 provided on the lower end surface 11a so as to form a column-like non-passage portion in the inner communication portion and thereby forms a cylindrical-hollow passage. It thus becomes possible to provide a diaphragm valve 1 with which a Cv value can be increased without increasing an outer shape.</p>