JPS61193274U - - Google Patents
Info
- Publication number
- JPS61193274U JPS61193274U JP7729185U JP7729185U JPS61193274U JP S61193274 U JPS61193274 U JP S61193274U JP 7729185 U JP7729185 U JP 7729185U JP 7729185 U JP7729185 U JP 7729185U JP S61193274 U JPS61193274 U JP S61193274U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- fixed
- valve shaft
- shaft
- main body
- 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 1
- 230000002265 prevention Effects 0.000 claims 1
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Description
第１図は全閉状態を示す中央横断面図、第２図
は開度θ°における中央縦断面図、第３図は開度
θ°における中央横断面図である。
１……本体、２……シートリング、３……弁体
、４……駆動側弁軸、５……固定側弁軸、６……
テーパーピン、７……固定軸、８……通孔、９…
…貫通孔、１０……本体の軸心。
FIG. 1 is a central cross-sectional view showing a fully closed state, FIG. 2 is a central vertical cross-sectional view at an opening degree of θ°, and FIG. 3 is a central cross-sectional view at an opening degree of θ°. 1... Main body, 2... Seat ring, 3... Valve body, 4... Drive side valve shaft, 5... Fixed side valve stem, 6...
Taper pin, 7... Fixed shaft, 8... Through hole, 9...
...Through hole, 10...Axis of main body.
Claims (1)
本体１内に円板状の弁体３を２本の弁軸４，５で
回転自在に軸支し、一方の弁軸４を駆動側弁軸と
して本体１外に延出してアクチユエーターに連結
し、他方の弁軸５を本体１に固定して固定側弁軸
となし、弁体３を該固定側弁軸５の外周に液密性
を保持しつつ回転自在に軸挿し、キヤビテーシヨ
ンが発生する開度θ°において互に連通する通孔
８と貫通孔９を固定側弁軸５と弁体３の中央部附
近に形成したことを特徴とするバタフライ弁のキ
ヤビテーシヨン防止装置。 A disk-shaped valve body 3 is rotatably supported by two valve shafts 4 and 5 in a substantially cylindrical main body 1 having a seat ring 2 fixed to its inner peripheral surface, and one valve shaft 4 is attached to the drive side. It extends outside the main body 1 as a valve shaft and is connected to the actuator, and the other valve shaft 5 is fixed to the main body 1 to serve as a fixed valve shaft, and the valve body 3 is attached to the outer periphery of the fixed valve shaft 5. A through hole 8 and a through hole 9 are formed near the center of the fixed side valve shaft 5 and the valve body 3, so that the shaft can be freely inserted while maintaining tightness and communicate with each other at the opening degree θ° where cavitation occurs. Cavitation prevention device for butterfly valves featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7729185U JPS61193274U (en) | 1985-05-24 | 1985-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7729185U JPS61193274U (en) | 1985-05-24 | 1985-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61193274U true JPS61193274U (en) | 1986-12-01 |
Family
ID=30620226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7729185U Pending JPS61193274U (en) | 1985-05-24 | 1985-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61193274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012047205A (en) * | 2010-08-24 | 2012-03-08 | Kitz Corp | Valve body of butterfly valve |
| JP2015102108A (en) * | 2013-11-21 | 2015-06-04 | 前澤工業株式会社 | Butterfly valve |
-
1985
- 1985-05-24 JP JP7729185U patent/JPS61193274U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012047205A (en) * | 2010-08-24 | 2012-03-08 | Kitz Corp | Valve body of butterfly valve |
| CN102374298A (en) * | 2010-08-24 | 2012-03-14 | 株式会社开滋 | Valve core of butterfly valve |
| JP2015102108A (en) * | 2013-11-21 | 2015-06-04 | 前澤工業株式会社 | Butterfly valve |