JPH0362271U - - Google Patents

Info

Publication number
JPH0362271U
JPH0362271U JP12313989U JP12313989U JPH0362271U JP H0362271 U JPH0362271 U JP H0362271U JP 12313989 U JP12313989 U JP 12313989U JP 12313989 U JP12313989 U JP 12313989U JP H0362271 U JPH0362271 U JP H0362271U
Authority
JP
Japan
Prior art keywords
width
radius
valve
seat ring
height
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
Application number
JP12313989U
Other languages
Japanese (ja)
Other versions
JPH0712766Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12313989U priority Critical patent/JPH0712766Y2/en
Publication of JPH0362271U publication Critical patent/JPH0362271U/ja
Application granted granted Critical
Publication of JPH0712766Y2 publication Critical patent/JPH0712766Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは本考案の一実施例を示すバタフライ
弁のシートリングの上面図、同図ｂは同図ａのＢ
−Ｂ線断面図、同図ｃは同図ｂのＣ−Ｃ線断面図
、第２図ａは弁体組立前の状態を示すシートリン
グの断面説明図、同図ｂは弁体組立時の状態を示
すシートリングの説明図、第３図は従来例を示す
バタフライ弁の正面図、第４図ａ及びｂは本出願
人の開発したシートリングの内周面の展開図及び
作用説明図である。 １……シートリング、１ａ……弁棒貫通孔、１
１……耳部、１２……帯、１３……膨出部、１４
……空隙、Ｗ１，Ｗ２……幅、Ｙ１，Ｙ２……高
さ、Ｒ１，Ｒ２……半径、Ｏ１，Ｏ２……中心線
、Ｙ３……偏心量。 Fig. 1a is a top view of the seat ring of a butterfly valve showing an embodiment of the present invention, and Fig. 1b is a top view of the seat ring shown in Fig. 1a.
-B sectional view, Figure 2c is a sectional view taken along CC line of Figure 2b, Figure 2a is a cross-sectional explanatory diagram of the seat ring showing the state before valve body assembly, Figure 2b is a sectional view of the seat ring when valve body is assembled. FIG. 3 is a front view of a conventional butterfly valve, and FIGS. 4 a and b are developed views of the inner circumferential surface of the seat ring developed by the present applicant and explanatory views of its operation. be. 1...Seat ring, 1a...Valve stem through hole, 1
1...ear part, 12...band, 13...bulge part, 14
... air gap, W 1 , W 2 ... width, Y 1 , Y 2 ... height, R 1 , R 2 ... radius, O 1 , O 2 ... center line, Y 3 ... eccentricity.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 剛性材料からなる中空筒状の本体の全内周面と
、該本体内に回転自在に軸支されている剛性材料
からなる弁体の周縁部との間に介在される弾性材
料からなる環状シートリングにおいて、該シート
リングの外周面に形成された幅Ｗ１と高さＹ１の
帯に対して、さらに弁棒貫通孔部に、上記幅Ｗ１
より小さい幅Ｗ２と高さＹ２を有し、上記幅Ｗ１
の半径Ｒ１の中心Ｏ１に対し弁棒貫通方向に偏心
した点Ｏ２に中心をもち、上記半径Ｒ１より小さ
い半径Ｒ２の軌跡で表わされる膨出部を設けたこ
とを特徴とするバタフライ弁のシートリング。 An annular sheet made of an elastic material interposed between the entire inner peripheral surface of a hollow cylindrical main body made of a rigid material and the peripheral edge of a valve body made of a rigid material that is rotatably supported within the main body. In the ring, a band with a width W 1 and a height Y 1 formed on the outer circumferential surface of the seat ring is further formed in the valve stem through hole portion with the width W 1
 has a smaller width W 2 and a height Y 2 and the above width W 1
 The valve is characterized by having a bulge having a center at a point O2 eccentric in the valve stem penetration direction with respect to the center O1 of the radius R1, and represented by a locus of a radius R2 smaller than the radius R1 . Butterfly valve seat ring.
JP12313989U 1989-10-23 1989-10-23 Butterfly valve seat ring Expired - Fee Related JPH0712766Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12313989U JPH0712766Y2 (en) 1989-10-23 1989-10-23 Butterfly valve seat ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12313989U JPH0712766Y2 (en) 1989-10-23 1989-10-23 Butterfly valve seat ring

Publications (2)

Publication Number Publication Date
JPH0362271U true JPH0362271U (en) 1991-06-18
JPH0712766Y2 JPH0712766Y2 (en) 1995-03-29

Family

ID=31671127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12313989U Expired - Fee Related JPH0712766Y2 (en) 1989-10-23 1989-10-23 Butterfly valve seat ring

Country Status (1)

Country Link
JP (1) JPH0712766Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012107716A (en) * 2010-11-18 2012-06-07 Sasakura Engineering Co Ltd Butterfly valve and seat ring
KR200475998Y1 (en) * 2013-11-12 2015-01-20 한국남부발전(주) Butterfly valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004183711A (en) * 2002-11-29 2004-07-02 Asahi Organic Chem Ind Co Ltd Seat ring for butterfly valves
JP1530618S (en) 2014-10-09 2015-08-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012107716A (en) * 2010-11-18 2012-06-07 Sasakura Engineering Co Ltd Butterfly valve and seat ring
KR200475998Y1 (en) * 2013-11-12 2015-01-20 한국남부발전(주) Butterfly valve

Also Published As

Publication number Publication date
JPH0712766Y2 (en) 1995-03-29

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