JPH0329777U - - Google Patents
Info
- Publication number
- JPH0329777U JPH0329777U JP9063189U JP9063189U JPH0329777U JP H0329777 U JPH0329777 U JP H0329777U JP 9063189 U JP9063189 U JP 9063189U JP 9063189 U JP9063189 U JP 9063189U JP H0329777 U JPH0329777 U JP H0329777U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- valve body
- fluid passage
- different thicknesses
- 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
- 239000012530 fluid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
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、第４図は実施例として示し
た弁座の断面図である。
１……弁体、２……弁軸、３……流体通路、４
，１１，１３……弁座、５，１２，１４……軸孔
部、６……弁箱、ｔ１，ｔ２，ｔ３，ｔ４……弁
座の厚み。
FIG. 1 is a longitudinal sectional view of the butterfly valve, FIG. 2 is a half-sectional view thereof, and FIGS. 3 and 4 are sectional views of a valve seat shown as an embodiment. 1... Valve body, 2... Valve stem, 3... Fluid passage, 4
, 11, 13...Valve seat, 5, 12, 14...Shaft hole portion, 6...Valve box, t1 , t2 , t3 , t4 ...Thickness of valve seat.
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
よう外周を円形として内周を楕円形として厚みを
異にするか、外周を楕円形として内周を円形とし
て厚みを異にした環状の弁座を設けたことを特徴
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 having a shaft hole passing through the valve shaft of the valve body, tapered so as to be thinner near the fluid passage, and contacting 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; The valve seat is characterized by having an annular valve seat with a circular outer circumference, an oval inner circumference, and different thicknesses, or an oval outer circumference, a circular inner circumference, and different thicknesses to increase the contact surface pressure of the valve seat. Seal device for butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9063189U JPH0329777U (en) | 1989-07-31 | 1989-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9063189U JPH0329777U (en) | 1989-07-31 | 1989-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0329777U true JPH0329777U (en) | 1991-03-25 |
Family
ID=31640147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9063189U Pending JPH0329777U (en) | 1989-07-31 | 1989-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0329777U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004051122A1 (en) * | 2002-11-29 | 2004-06-17 | Asahi Organic Chemicals Industry Co., Ltd. | Seat ring for butterfly valve |
| WO2004092625A1 (en) * | 2003-04-10 | 2004-10-28 | Asahi Organic Chemicals Industry Co., Ltd. | Butterfly valve |
| JP2012107716A (en) * | 2010-11-18 | 2012-06-07 | Sasakura Engineering Co Ltd | Butterfly valve and seat ring |
-
1989
- 1989-07-31 JP JP9063189U patent/JPH0329777U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004051122A1 (en) * | 2002-11-29 | 2004-06-17 | Asahi Organic Chemicals Industry Co., Ltd. | Seat ring for butterfly valve |
| WO2004092625A1 (en) * | 2003-04-10 | 2004-10-28 | Asahi Organic Chemicals Industry Co., Ltd. | Butterfly valve |
| JPWO2004092625A1 (en) * | 2003-04-10 | 2006-07-06 | 旭有機材工業株式会社 | Butterfly valve |
| JP2012107716A (en) * | 2010-11-18 | 2012-06-07 | Sasakura Engineering Co Ltd | Butterfly valve and seat ring |
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