JPS6438364U - - Google Patents
Info
- Publication number
- JPS6438364U JPS6438364U JP13230087U JP13230087U JPS6438364U JP S6438364 U JPS6438364 U JP S6438364U JP 13230087 U JP13230087 U JP 13230087U JP 13230087 U JP13230087 U JP 13230087U JP S6438364 U JPS6438364 U JP S6438364U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- hole
- valve stem
- corrosion
- 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.)
- Granted
Links
- 230000007797 corrosion Effects 0.000 claims 3
- 238000005260 corrosion Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001514 detection method 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バタフライ
弁の縦断面図、第２図ａ及びｂは弁棒の空気抜け
孔入口部に漏洩検知用部材を取付けた状態を示す
説明図、第３図は本考案の他の実施例を示すバタ
フライ弁の縦断面図、第４図ａないしｃは従来例
における二分割弁棒の組立過程を示す説明図、第
５図は従来例の弁の下半分を示す断面図、第５ａ
図は第５図Ａ部の拡大説明図、第６図は他の従来
例を示す要部断面図である。
１……本体、２……弁体、２ａ……被覆材料、
２ｂ……弁体孔部、３Ａ……上部弁棒、３Ｂ……
下部弁棒、３１Ａ，３１Ｂ……空気抜け孔、３３
Ａ……角軸部、４……シートリング、５，６……
Ｏリング、８……通路、１０……検知用プラグ、
１１……ミニコツク。
FIG. 1 is a vertical sectional view of a butterfly valve showing an embodiment of the present invention, FIGS. Fig. 3 is a vertical sectional view of a butterfly valve showing another embodiment of the present invention, Figs. Cross-sectional view showing the lower half, No. 5a
The figure is an enlarged explanatory view of part A in FIG. 5, and FIG. 6 is a sectional view of a main part showing another conventional example. 1... Main body, 2... Valve body, 2a... Covering material,
2b... Valve body hole, 3A... Upper valve stem, 3B...
Lower valve stem, 31A, 31B... Air vent hole, 33
A... Square shaft part, 4... Seat ring, 5, 6...
O-ring, 8...passage, 10...detection plug,
11...Mini Kotsuku.
Claims (1)
にシートリングを張設し、該本体内に、駆動側の
一端を外方に突出させた弁棒によつて回動自在に
軸支された剛性材料からなる弁体の全面に、耐食
性材料を被覆したバタフライ弁において、上記弁
棒を上下二分割とし、該二分割された両弁棒の内
方部をそれぞれ挿入する孔を、弁体の周辺部の２
箇所に穿設すると共に、少くとも一方の弁棒のほ
ぼ中心部に空気抜け孔を貫通して設け、上記弁体
孔部を外部に連通させるようにしたことを特徴と
するバタフライ弁。 ２ 上記二分割された上部弁棒の内方端部と、該
内方端部を挿入する弁体孔部とが、互いに嵌合す
る断面角形に形成されている実用新案登録請求の
範囲第１項記載のバタフライ弁。 ３ 上記弁体を被覆する耐食性材料が弁体孔部の
入口附近まで被覆されており、該被覆部分を通つ
て挿入される上部及び下部の両弁棒に、それぞれ
耐食性のあるＯリングが上記被覆部分に当接する
ようにして挿嵌されている実用新案登録請求の範
囲第１項記載のバタフライ弁。[Claims for Utility Model Registration] 1. A seat ring is stretched around the inner peripheral surface of a hollow cylindrical main body made of a rigid material, and a valve stem with one end of the drive side protruding outward is installed in the main body. In a butterfly valve in which the entire surface of the valve body made of a rigid material is rotatably supported by a shaft and covered with a corrosion-resistant material, the valve stem is divided into upper and lower halves, and the inner part of both the halves of the valve stem is divided into upper and lower halves. Insert each hole into two holes on the periphery of the valve body.
1. A butterfly valve characterized in that an air vent hole is provided at a substantially center portion of at least one valve stem, and the valve body hole portion is communicated with the outside. 2. Utility model registration claim 1, wherein the inner end of the divided upper valve stem and the valve body hole into which the inner end is inserted are formed to have a rectangular cross section that fits into each other. Butterfly valve as described in section. 3. A corrosion-resistant material covering the valve body extends to the vicinity of the entrance of the valve body hole, and a corrosion-resistant O-ring is placed on each of the upper and lower valve stems inserted through the covered portion. The butterfly valve according to claim 1, which is inserted into the butterfly valve so as to come into contact with the parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13230087U JPH0329642Y2 (en) | 1987-09-01 | 1987-09-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13230087U JPH0329642Y2 (en) | 1987-09-01 | 1987-09-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6438364U true JPS6438364U (en) | 1989-03-07 |
| JPH0329642Y2 JPH0329642Y2 (en) | 1991-06-24 |
Family
ID=31389133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13230087U Expired JPH0329642Y2 (en) | 1987-09-01 | 1987-09-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0329642Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03115259U (en) * | 1990-03-12 | 1991-11-28 |
-
1987
- 1987-09-01 JP JP13230087U patent/JPH0329642Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03115259U (en) * | 1990-03-12 | 1991-11-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0329642Y2 (en) | 1991-06-24 |