JPH0329779U - - Google Patents
Info
- Publication number
- JPH0329779U JPH0329779U JP9063389U JP9063389U JPH0329779U JP H0329779 U JPH0329779 U JP H0329779U JP 9063389 U JP9063389 U JP 9063389U JP 9063389 U JP9063389 U JP 9063389U JP H0329779 U JPH0329779 U JP H0329779U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- butterfly
- fluid passage
- contact
- 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
- 239000012530 fluid Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 210000004907 gland Anatomy 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
第１図はバタフライ弁の縦断面図、第２図は同
半截断面図、第３図はフランジ部の正面図、第４
図は第３図Ａ−Ｂ線による断面図、第５図、第６
図は同側面図、第７図、第８図は弁箱のグランド
部の断面図である。
１……弁体、２……弁軸、３……流体通路、４
……弁座、５，１１……軸孔部、６，１０……弁
箱、ｔ１，ｔ２……フランジの幅、Ｔ１，Ｔ２…
…弁箱の幅。
Fig. 1 is a vertical cross-sectional view of the butterfly valve, Fig. 2 is a half-sectional view of the butterfly valve, Fig. 3 is a front view of the flange portion, and Fig. 4 is a longitudinal sectional view of the butterfly valve.
The figures are sectional views taken along line A-B in Figure 3, Figures 5 and 6.
The figure is a side view of the same, and FIGS. 7 and 8 are cross-sectional views of the gland portion of the valve box. 1... Valve body, 2... Valve shaft, 3... Fluid passage, 4
... Valve seat, 5, 11 ... Shaft hole, 6, 10 ... Valve box, t 1 , t 2 ... Flange width, T 1 , T 2 ...
...Width of the valve box.
Claims (1)
この弁体の弁軸を貫挿通する軸孔部を有し、流体
通路に近い方が薄くなるようテーパ形状とし、且
つ前記弁体の外周縁に接触するようにした環状の
弁座と、この弁座の外周から締付けて前記弁体に
接触圧力をかけてシールするようにした弁箱とを
備え、前記弁体の弁軸部又は弁軸部から離れた外
周部において弁体と弁座との接触面圧を増加する
よう環状の締付けフランジ又は弁箱の幅寸法を狭
くすることを特徴とするバタフライ弁のシール装
置。 A valve body of a butterfly valve that opens and closes a fluid passage,
an annular valve seat that has a shaft hole that penetrates the valve shaft of the valve body, is tapered so that it is thinner near the fluid passage, and is in contact with the outer peripheral edge of the valve body; a valve box that is tightened from the outer periphery of the valve seat to apply contact pressure to the valve body for sealing; A sealing device for a butterfly valve, characterized in that the width dimension of an annular tightening flange or a valve body is narrowed so as to increase the contact surface pressure of the butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989090633U JP2525041Y2 (en) | 1989-07-31 | 1989-07-31 | Butterfly valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989090633U JP2525041Y2 (en) | 1989-07-31 | 1989-07-31 | Butterfly valve sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0329779U true JPH0329779U (en) | 1991-03-25 |
| JP2525041Y2 JP2525041Y2 (en) | 1997-02-05 |
Family
ID=31640149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989090633U Expired - Lifetime JP2525041Y2 (en) | 1989-07-31 | 1989-07-31 | Butterfly valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525041Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536723U (en) * | 1978-08-31 | 1980-03-08 |
-
1989
- 1989-07-31 JP JP1989090633U patent/JP2525041Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536723U (en) * | 1978-08-31 | 1980-03-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2525041Y2 (en) | 1997-02-05 |