JPS6173965U - - Google Patents
Info
- Publication number
- JPS6173965U JPS6173965U JP15843184U JP15843184U JPS6173965U JP S6173965 U JPS6173965 U JP S6173965U JP 15843184 U JP15843184 U JP 15843184U JP 15843184 U JP15843184 U JP 15843184U JP S6173965 U JPS6173965 U JP S6173965U
- Authority
- JP
- Japan
- Prior art keywords
- seat ring
- valve
- butterfly valve
- pair
- valve plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013013 elastic material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 5
- 230000007797 corrosion Effects 0.000 claims 2
- 238000005260 corrosion Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000004809 Teflon Substances 0.000 claims 1
- 229920006362 Teflon® Polymers 0.000 claims 1
- 229920005549 butyl rubber Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
第１図は本考案の一実施例を示すシートリング
を装置したバタフライ弁の組立断面図、第２図は
その要部斜視図、第３Ａ図及び第３Ｂ図は開弁時
及び閉弁時のシートリングの要部拡大断面図、第
４図は内装リングの拡大断面図、第５図は本考案
のバタフライ弁の配管時の状態図、第６図は従来
のバタフライ弁の斜視図、第７図はその要部斜視
図、第８Ａ図、第８Ｂ図及び第１０図は従来のバ
タフライ弁の断面図又は斜視図、第９Ａ図及び第
９Ｂ図は従来のシートリングの開弁時及び閉弁時
の要部拡大断面図である。
１，１１…弁本体、２，１２…弁板、２ａ，１
５…弁軸、３，１３…環状シートリング、３ａ，
１３ａ…弁軸貫通孔、３ｂ，１３ｂ…ボス部、３
ｃ，１３ｃ…円周接触面、１４…内装リング、１
４ａ…高弾性材料、１４ｂ…チユーブ。
Fig. 1 is an assembled sectional view of a butterfly valve equipped with a seat ring showing an embodiment of the present invention, Fig. 2 is a perspective view of its main parts, and Figs. 3A and 3B are when the valve is opened and closed. FIG. 4 is an enlarged sectional view of the main parts of the seat ring, FIG. 4 is an enlarged sectional view of the inner ring, FIG. 5 is a state diagram of the butterfly valve of the present invention during piping, FIG. 6 is a perspective view of a conventional butterfly valve, and FIG. The figure is a perspective view of the main parts, Figures 8A, 8B, and 10 are cross-sectional views or perspective views of a conventional butterfly valve, and Figures 9A and 9B are a conventional seat ring when the valve is open and when the valve is closed. FIG. 1, 11... Valve body, 2, 12... Valve plate, 2a, 1
5... Valve shaft, 3, 13... Annular seat ring, 3a,
13a...Valve shaft through hole, 3b, 13b...Boss part, 3
c, 13c...Circumferential contact surface, 14...Interior ring, 1
4a...High elastic material, 14b...Tube.
Claims (1)
と、前記弁本体内に回動自在に軸支されている剛
性材料からなる円板状弁板の周縁部との間に介在
させられているテフロン（商品名、以下同じ）の
ような弗素樹脂系材料からなる環状シートリング
であつて、その内周面の直径方向対向位置には、
前記弁板の回動軸を貫通させるための１対の貫通
孔が設けられており、当該１対の貫通孔の各周囲
には、弁開及び弁閉時の何れを問わず常に前記弁
板の回動軸根元附近に圧接させるための１対のボ
ス部が形成されていをバタフライ弁のシートリン
グにおいて、弗素樹脂系材料からなる環状シート
リングのボス部接触面及びその他の円周接触面の
裏面に、弾性と耐食性を有するチユーブにて補強
された高弾性材料からな内装リングを装着したこ
とを特徴とするバタフライ弁のシートリング。 ２ 前記弾性と耐食性を有するチユーブを、ブチ
ルゴム等で構成した実用新案登録請求の範囲第１
項記載のバタフライ弁のシートリング。 ３ 前記弗素樹脂系材料からなる環状シートリン
グの弁板との接触部分を、すべて球面状くぼませ
て形成した実用新案登録請求の範囲第１項記載の
バタフライ弁のシートリング。[Claims for Utility Model Registration] 1. The entire inner peripheral surface of a hollow cylindrical valve body made of a rigid material, and the peripheral edge of a disc-shaped valve plate made of a rigid material that is rotatably supported within the valve body. It is an annular seat ring made of a fluororesin material such as Teflon (trade name, the same applies hereinafter), which is interposed between
A pair of through holes are provided for passing the rotation shaft of the valve plate, and the valve plate is always provided around each of the pair of through holes, regardless of whether the valve is open or closed. In the seat ring of a butterfly valve, a pair of boss parts are formed to press against the base of the rotation axis of the butterfly valve, and the contact surface of the boss part and other circumferential contact surfaces of the annular seat ring made of fluororesin material are A butterfly valve seat ring characterized by having an inner ring made of a highly elastic material reinforced with a tube that has elasticity and corrosion resistance on the back side. 2 Utility model registration claim 1 in which the tube having elasticity and corrosion resistance is made of butyl rubber, etc.
Seat ring for butterfly valve as described in section. 3. The seat ring for a butterfly valve according to claim 1, wherein the annular seat ring made of the fluororesin material is formed by recessing the entire portion of the annular seat ring in contact with the valve plate into a spherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15843184U JPS6173965U (en) | 1984-10-22 | 1984-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15843184U JPS6173965U (en) | 1984-10-22 | 1984-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6173965U true JPS6173965U (en) | 1986-05-19 |
Family
ID=30716412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15843184U Pending JPS6173965U (en) | 1984-10-22 | 1984-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6173965U (en) |
-
1984
- 1984-10-22 JP JP15843184U patent/JPS6173965U/ja active Pending
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