JP5192285B2 - バタフライ弁装置 - Google Patents
バタフライ弁装置 Download PDFInfo
- Publication number
- JP5192285B2 JP5192285B2 JP2008131449A JP2008131449A JP5192285B2 JP 5192285 B2 JP5192285 B2 JP 5192285B2 JP 2008131449 A JP2008131449 A JP 2008131449A JP 2008131449 A JP2008131449 A JP 2008131449A JP 5192285 B2 JP5192285 B2 JP 5192285B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve stem
- central axis
- stem
- box
- 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.)
- Active
Links
- 230000000149 penetrating effect Effects 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 25
- 239000003566 sealing material Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000012856 packing Methods 0.000 description 14
- 210000004907 gland Anatomy 0.000 description 13
- 239000012530 fluid Substances 0.000 description 12
- 230000035515 penetration Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Landscapes
- Details Of Valves (AREA)
- Lift Valve (AREA)
Description
2 弁箱
3 弁棒
4 中央穴
5 弁体
6 弁棒貫通部
7 グランドパッキン
8 座面
9 シール面
13 大径部
14 収容部
Claims (3)
- 弁箱と、該弁箱の中央穴を開閉する弁体と、弁箱の内周面から前記中央穴に突出して弁体を支持する弁棒とを備え、前記中央穴を弁箱の外側から開閉可能なよう、前記弁棒が、弁棒中心軸を回動軸として弁体と一体的に回動自在とされ、かつ弁箱を外側に貫通すると共に、弁棒と弁箱の弁棒貫通部との間をシールするシール材が設けられたバタフライ弁装置であって、
前記弁棒は、弁箱及び弁体に対して弁棒中心軸方向に移動自在に設けられると共に、弁箱の弁棒貫通部に形成された座面と弁棒中心軸方向に間隔を空けて位置するシール面が形成され、前記シール材を交換する際に前記シール面を前記座面に接触させてシールするよう、弁棒を弁棒中心軸方向に移動させる移動手段が設けられ、
前記移動手段は、弁箱と一体の不動部分に孔中心軸を弁棒中心軸と合わせて雌ねじを形成してなるねじ孔と、前記雌ねじに螺合する雄ねじを有する筒状ねじと、該筒状ねじを回転させて弁棒中心軸方向に移動させる移動操作部とからなり、前記弁棒に、これと相対的に回転自在かつ弁棒中心軸方向に移動不能に前記筒状ねじが外嵌され、該筒状ねじと共に、前記弁棒が弁棒中心軸方向に移動することを特徴とするバタフライ弁装置。 - 前記シール面は、弁棒の中間部に一般部よりも径の大きい大径部を形成することにより、一般部と大径部との間に形成され、前記弁箱は、弁棒貫通部に弁棒の大径部を収容する収容部が形成されると共に、該収容部を横切る位置で弁棒中心軸方向に分割可能とされたことを特徴とする請求項1に記載のバタフライ弁装置。
- 前記シール面は、弁棒中心軸に対して傾斜するテーパ状とされたことを特徴とする請求項1又は2に記載のバタフライ弁装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008131449A JP5192285B2 (ja) | 2008-05-20 | 2008-05-20 | バタフライ弁装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008131449A JP5192285B2 (ja) | 2008-05-20 | 2008-05-20 | バタフライ弁装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009281418A JP2009281418A (ja) | 2009-12-03 |
JP5192285B2 true JP5192285B2 (ja) | 2013-05-08 |
Family
ID=41452090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008131449A Active JP5192285B2 (ja) | 2008-05-20 | 2008-05-20 | バタフライ弁装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5192285B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101171571B1 (ko) * | 2010-08-09 | 2012-08-06 | 한국수력원자력 주식회사 | 밸브 패킹의 설치 및 제거를 위한 장치 및 그 방법 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780233A (en) * | 1951-03-06 | 1957-02-05 | Alexander S Volpin | Through conduit gate valve |
JPS56148177U (ja) * | 1981-04-01 | 1981-11-07 | ||
US4601304A (en) * | 1984-08-09 | 1986-07-22 | Schobl Howard T | Valve assembly |
JPH0536156Y2 (ja) * | 1985-10-25 | 1993-09-13 | ||
DE4001233A1 (de) * | 1990-01-18 | 1991-08-01 | Ruhrkohle Ag | Absperrarmatur |
JPH0510870U (ja) * | 1991-07-23 | 1993-02-12 | 株式会社クボタ | バタフライ弁の軸封構造 |
JP2004052986A (ja) * | 2002-07-24 | 2004-02-19 | Tomoe Tech Res Co | バタフライ弁 |
-
2008
- 2008-05-20 JP JP2008131449A patent/JP5192285B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2009281418A (ja) | 2009-12-03 |
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