JPH0362269U - - Google Patents
Info
- Publication number
- JPH0362269U JPH0362269U JP12314089U JP12314089U JPH0362269U JP H0362269 U JPH0362269 U JP H0362269U JP 12314089 U JP12314089 U JP 12314089U JP 12314089 U JP12314089 U JP 12314089U JP H0362269 U JPH0362269 U JP H0362269U
- Authority
- JP
- Japan
- Prior art keywords
- outer peripheral
- valve body
- peripheral surface
- thickness
- central
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
第１図ａは本考案の一実施例を示す弁体の正面
図、同図ｂは同図ａの−線断面図、同図ｃは
側面図、第２図は第１図ｂのＡ部の要部拡大断面
図、第３図ａ，ｂ及び第４図ａ，ｂは異つた弁体
の閉鎖時の作用説明図と弁体の要部断面図、第５
図は機械加工により面取りされた弁体の斜視図、
第６図は従来例を示す中心型バタフライ弁の断面
図である。
１０……弁体、１１……球形外周面部、１２…
…弁体中央部、１３……リブ、Ｔ１，Ｔ２，Ｔ３
……弁体の厚さ、θ１，θ２……角度。
Fig. 1a is a front view of a valve body showing an embodiment of the present invention, Fig. 1b is a sectional view taken along the line -A in Fig. 1a, Fig. 1c is a side view, and Fig. 2 is a section A in Fig. 1b. Fig. 3a, b and Fig. 4 a, b are enlarged sectional views of the main parts of the valve body, and Figs.
The figure is a perspective view of a valve body chamfered by machining.
FIG. 6 is a sectional view of a conventional central butterfly valve. 10... Valve body, 11... Spherical outer peripheral surface portion, 12...
... Valve body central part, 13... Rib, T 1 , T 2 , T 3
...thickness of the valve body, θ 1 , θ 2 ... angle.
Claims (1)
ングを張設し、弁閉時、周縁部を該シートリング
の内周面にくい込むようにしてシール作用させる
ようにした中心型バタフライ弁の弁体において、
外周面を球形に形成し、弁体中央部の厚さより該
球形外周面部の厚さを薄くすると共に、外周部に
、上記球形外周面部の厚さより厚く、且つ弁体中
央部と該球形外周面部とのなす角度より大きい角
度で厚さ方向に膨出したリブを、一体に形成した
ことを特徴とする中心型バタフライ弁の弁体。 In a valve body of a central butterfly valve, an elastic seat ring is stretched over the inner circumferential surface of a main body made of a rigid material, and when the valve is closed, the peripheral edge is inserted into the inner circumferential surface of the seat ring to perform a sealing action.
The outer peripheral surface is formed into a spherical shape, and the thickness of the spherical outer peripheral surface part is thinner than the thickness of the central part of the valve body, and the outer peripheral part is thicker than the thickness of the spherical outer peripheral surface part, and the central part of the valve body and the spherical outer peripheral surface part are provided. A valve body for a central butterfly valve characterized by integrally forming ribs that bulge in the thickness direction at an angle greater than the angle formed by the central butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12314089U JPH0362269U (en) | 1989-10-23 | 1989-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12314089U JPH0362269U (en) | 1989-10-23 | 1989-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0362269U true JPH0362269U (en) | 1991-06-18 |
Family
ID=31671128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12314089U Pending JPH0362269U (en) | 1989-10-23 | 1989-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0362269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011128974A1 (en) * | 2010-04-13 | 2011-10-20 | 株式会社 巴技術研究所 | Valve element of butterfly valve |
-
1989
- 1989-10-23 JP JP12314089U patent/JPH0362269U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011128974A1 (en) * | 2010-04-13 | 2011-10-20 | 株式会社 巴技術研究所 | Valve element of butterfly valve |