JPS62177969U

JPS62177969U -

Info

Publication number: JPS62177969U
Application number: JP6628886U
Authority: JP
Priority date: 1986-04-30
Filing date: 1986-04-30
Publication date: 1987-11-12

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示すバルブケーシン
グの一部横断平面図、第２図はバルブケーシング
の一部縦断正面図、第３図はステムをステム挿通
孔に装着した状態を示す横断平面図、第４図は第
３図における―断面図、第５図はシール部材
の概略斜視図、第６図はシール部材の部分拡大断
面図、第７図は別の実施例を示すシール部材の部
分拡大断面図、第８図はさらに別の実施例を示す
シール部材の概略斜視図である。１０……ステム
、１１……貫通孔、１２，１３……開口、１７，
１８，３６，３７……リング状シール部材、１９
……連結部材（シール部材）、２４，３１……エ
ラストマ部材、２５，３３……ふつ素樹脂系部材
、２７……脚部、３２……溝、３８，３９……四
角形形状シール部材（シール部材）。 Fig. 1 is a partially cross-sectional plan view of a valve casing showing an embodiment of the present invention, Fig. 2 is a partially longitudinal front view of the valve casing, and Fig. 3 is a transverse plane showing a state in which the stem is installed in the stem insertion hole. 4 is a sectional view of FIG. 3, FIG. 5 is a schematic perspective view of the seal member, FIG. 6 is a partially enlarged sectional view of the seal member, and FIG. 7 is a seal member showing another embodiment. FIG. 8 is a partially enlarged sectional view and a schematic perspective view of a sealing member showing yet another embodiment. 10... Stem, 11... Through hole, 12, 13... Opening, 17,
18, 36, 37...Ring-shaped seal member, 19
...Connecting member (seal member), 24, 31... Elastomer member, 25, 33... Fluorine resin member, 27... Leg, 32... Groove, 38, 39... Rectangular seal member (seal Element).

Claims

[Claims for Utility Model Registration] (1) A cylindrical valve stem is formed with a through hole for fluid circulation that penetrates in the diametrical direction, and is located above and below the opening of the through hole in the axial direction of the cylindrical valve stem. two ring-shaped seal members are disposed in parallel to a plane substantially orthogonal to 1. A valve seal characterized in that the seal members are connected in a substantially vertical direction and are formed in a self-sealing structure by a combination of a fluororesin member and an elastomer member. (2) The valve seal according to claim 1, wherein the two ring-shaped seal members are divided into sections located above and below the opening. (3) The valve seal according to claim 1 or 2, wherein the elastomer member is formed of a fluorine-based elastomer. (4) The cross-sectional shape of the elastomer member is formed into a substantially T-shape, and the fluorine resin member is disposed to sandwich the legs of the T-shape, Claim 1 of the Utility Model Registration Claim. to the valve seal described in item 3. (5) The elastomer member has a substantially concave cross-sectional shape, and the fluorine resin member is disposed in the concave groove. Valve seals listed.