JPH0173582U - - Google Patents
Info
- Publication number
- JPH0173582U JPH0173582U JP1987168548U JP16854887U JPH0173582U JP H0173582 U JPH0173582 U JP H0173582U JP 1987168548 U JP1987168548 U JP 1987168548U JP 16854887 U JP16854887 U JP 16854887U JP H0173582 U JPH0173582 U JP H0173582U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- valve stem
- valve
- mounting groove
- butterfly
- 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
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Description
第１図は本発明の一実施例を示すバタフライ弁
の要部縦断面図、第２図は作動状態を示す要部拡
大説明図、第３図は従来例を示すバタフライ弁の
要部縦断面図である。
１…本体、２…シートリング、３…弁棒、３ａ
…弁棒穴、４…弁体、５…樹脂ライニング、１６
…バツクアツプリング、１６ａ…延長部、１７…
バツクアツプリング装着溝。
Fig. 1 is a longitudinal sectional view of the main part of a butterfly valve showing an embodiment of the present invention, Fig. 2 is an enlarged explanatory view of the main part showing the operating state, and Fig. 3 is a longitudinal sectional view of the main part of a butterfly valve showing a conventional example. It is a diagram. 1...Main body, 2...Seat ring, 3...Valve stem, 3a
...Valve stem hole, 4...Valve body, 5...Resin lining, 16
...Backup spring, 16a...Extension part, 17...
Backup spring installation groove.
Claims (1)
ニングを施し、弁棒穴部外側にバツクアツプリン
グ装着溝を設け、該装着溝にバツクアツプリング
を装着して軸シールを行なうようにしたバタフラ
イ弁において、上記バツクアツプリングの外径を
バツクアツプリング装着溝の外径より小さくし、
該バツクアツプリングの内径側の一部を弁棒近傍
まで延長し、流体圧力による弁棒の移動に追従し
て該バツクアツプリングが移動できるようにした
ことを特徴とするバタフライ弁の軸封装置。 ２ 上記バツクアツプリングの内径側の一部がシ
ートリング外周面又は本体内周面に沿つて或る厚
みをもつて弁棒近傍まで延長されている実用新案
登録請求の範囲第１項記載のバタフライ弁の軸封
装置。[Scope of Claim for Utility Model Registration] 1. A resin lining is applied to the inner surface of the seat ring including the valve stem hole, a back-up spring mounting groove is provided on the outside of the valve stem hole, and the back-up spring is mounted in the mounting groove to attach the shaft. In the butterfly valve configured to perform sealing, the outer diameter of the back-up spring is smaller than the outer diameter of the back-up spring mounting groove,
A shaft sealing device for a butterfly valve, characterized in that a part of the inner diameter side of the back-up spring is extended to the vicinity of the valve stem, so that the back-up spring can move in accordance with the movement of the valve stem due to fluid pressure. . 2. The butterfly according to claim 1 of the utility model registration claim, wherein a part of the inner diameter side of the backup spring extends to the vicinity of the valve stem with a certain thickness along the outer peripheral surface of the seat ring or the inner peripheral surface of the main body. Valve shaft sealing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16854887U JPH0332846Y2 (en) | 1987-11-05 | 1987-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16854887U JPH0332846Y2 (en) | 1987-11-05 | 1987-11-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0173582U true JPH0173582U (en) | 1989-05-18 |
| JPH0332846Y2 JPH0332846Y2 (en) | 1991-07-11 |
Family
ID=31457821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16854887U Expired JPH0332846Y2 (en) | 1987-11-05 | 1987-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332846Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06337074A (en) * | 1993-05-28 | 1994-12-06 | Kitz Corp | Butterfly valve |
| JP2018530714A (en) * | 2015-09-18 | 2018-10-18 | ビクターリック カンパニー | Valves and couplers |
-
1987
- 1987-11-05 JP JP16854887U patent/JPH0332846Y2/ja not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06337074A (en) * | 1993-05-28 | 1994-12-06 | Kitz Corp | Butterfly valve |
| JP2018530714A (en) * | 2015-09-18 | 2018-10-18 | ビクターリック カンパニー | Valves and couplers |
| EP3350489A4 (en) * | 2015-09-18 | 2019-04-17 | Victaulic Company | Valve and coupling |
| US10408370B2 (en) | 2015-09-18 | 2019-09-10 | Victaulic Company | Valve and coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0332846Y2 (en) | 1991-07-11 |
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