JPH0185576U - - Google Patents
Info
- Publication number
- JPH0185576U JPH0185576U JP18114887U JP18114887U JPH0185576U JP H0185576 U JPH0185576 U JP H0185576U JP 18114887 U JP18114887 U JP 18114887U JP 18114887 U JP18114887 U JP 18114887U JP H0185576 U JPH0185576 U JP H0185576U
- Authority
- JP
- Japan
- Prior art keywords
- seat ring
- main body
- adapter
- butterfly valve
- flange
- 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 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Lift Valve (AREA)
Description
第１図は本考案の第１実施例を示すバタフライ
弁の断面図、第２図は第１図の水平断面図、第３
図は第１図の要部断面図、第４図及び第５図は本
考案の第２実施例及び第３実施例を示すバタフラ
イ弁の各断面図、第６図ないし第８図は従来例を
示す断面図である。
１……本体、１１……内周面、１２……側周面
、１３……環状溝、２……シートリング、２１…
…円筒部、２２……外縁、３……環状アダプタ、
３１……環状溝、３２……円筒部、３４……鍔部
、３５……フランジ、４……弁棒、５……弁体、
６５，６５ａ……ボルト、６６……パイプ、７…
…フランジ、７１……環状溝。
Fig. 1 is a sectional view of a butterfly valve showing a first embodiment of the present invention, Fig. 2 is a horizontal sectional view of Fig. 1, and Fig. 3 is a horizontal sectional view of Fig. 1.
The figure is a sectional view of the main part of FIG. 1, FIGS. 4 and 5 are sectional views of butterfly valves showing second and third embodiments of the present invention, and FIGS. 6 to 8 are conventional examples. FIG. DESCRIPTION OF SYMBOLS 1... Main body, 11... Inner circumferential surface, 12... Side circumferential surface, 13... Annular groove, 2... Seat ring, 21...
... Cylindrical part, 22 ... Outer edge, 3 ... Annular adapter,
31... Annular groove, 32... Cylindrical portion, 34... Flange, 35... Flange, 4... Valve stem, 5... Valve body,
65, 65a...Bolt, 66...Pipe, 7...
...flange, 71... annular groove.
Claims (1)
側周面を包み込むシートリングと、該シートリン
グ内で回動自在に配置された弁体と、該弁体を回
動させ且つ支持する弁棒とからなるバタフライ弁
において、上記シートリングの円筒部の両縁に、
断面矩形状の外方に一部突出した外縁を設け、該
外縁と係合する溝を有する環状のアダプタと本体
の側周面との間で、上記シートリングを挾み込ん
で圧縮し、本体の側周面からの流体の漏洩を防止
すると共に流体の流速による吸引用でシートリン
グが内方へ吸引されるのを防止するようにしたこ
とを特徴とするバタフライ弁のシートリング。 ２ 上記環状のアダプタが、内面に内ねじを有す
る鍔付環状アダプタであつて、該アダプタの鍔部
が本体両側部の環状溝部に嵌合されるようになつ
ている実用新案登録請求の範囲第１項記載のバタ
フライ弁のシートリング。 ３ 上記環状のアダプタが、内面に内ねじを有す
るフランジ付環状アダプタであつて、該アダプタ
のフランジが本体のフランジにボルトで締付けら
れるようになつ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シートリング。 ４ 上記アダプタが、配管用フランジであつて、
該配管用フランジの２個のフランジで本体を挾み
込んで締付けるようになつ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シートリン
グ。[Claims for Utility Model Registration] 1. A main body, a seat ring that is fitted into the main body and wraps around the inner circumferential surface and side circumferential surface of the main body, a valve body rotatably disposed within the seat ring, and the valve. In a butterfly valve consisting of a valve stem that rotates and supports the body, on both edges of the cylindrical portion of the seat ring,
The seat ring is inserted and compressed between the annular adapter, which has a rectangular cross-sectional outer edge that partially protrudes outward, and has a groove that engages with the outer edge, and the side peripheral surface of the main body. 1. A seat ring for a butterfly valve, characterized in that it prevents fluid from leaking from the side circumferential surface of the butterfly valve, and also prevents the seat ring from being sucked inward due to suction due to the flow velocity of the fluid. 2. The above-mentioned annular adapter is a flanged annular adapter having an internal thread on the inner surface, and the flanges of the adapter are fitted into annular grooves on both sides of the main body. Seat ring for the butterfly valve described in item 1. 3. The utility model claimed in claim 1, wherein the annular adapter is a flanged annular adapter having an internal thread on the inner surface, and the flange of the adapter is bolted to the flange of the main body. Butterfly valve seat ring. 4 The above adapter is a piping flange,
A seat ring for a butterfly valve according to claim 1, wherein the main body is sandwiched between two flanges of the piping flange and tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18114887U JPH0334522Y2 (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18114887U JPH0334522Y2 (en) | 1987-11-30 | 1987-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0185576U true JPH0185576U (en) | 1989-06-07 |
| JPH0334522Y2 JPH0334522Y2 (en) | 1991-07-22 |
Family
ID=31472646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18114887U Expired JPH0334522Y2 (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0334522Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599346A (en) * | 1991-04-25 | 1993-04-20 | Kitz Corp | Butterfly valve |
-
1987
- 1987-11-30 JP JP18114887U patent/JPH0334522Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599346A (en) * | 1991-04-25 | 1993-04-20 | Kitz Corp | Butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0334522Y2 (en) | 1991-07-22 |