JPS5586965A - Butterfly valve - Google Patents

Butterfly valve

Info

Publication number
JPS5586965A
JPS5586965A JP16211478A JP16211478A JPS5586965A JP S5586965 A JPS5586965 A JP S5586965A JP 16211478 A JP16211478 A JP 16211478A JP 16211478 A JP16211478 A JP 16211478A JP S5586965 A JPS5586965 A JP S5586965A
Authority
JP
Japan
Prior art keywords
valve
seat ring
valve body
shaft
ring
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
Application number
JP16211478A
Other languages
Japanese (ja)
Inventor
Hiromi Katou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sankosha Co Ltd
Original Assignee
Sankosha Co Ltd
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 by Sankosha Co Ltd filed Critical Sankosha Co Ltd
Priority to JP16211478A priority Critical patent/JPS5586965A/en
Publication of JPS5586965A publication Critical patent/JPS5586965A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)

Abstract

PURPOSE: To eliminate aberration of a seat ring and reduction of sealing effect, by making annular grooves in the circuimferential direction on the internal surface of a butterfly valve for engaging with the external circumference of the seat ring expanded due to the action of fluid pressure.
CONSTITUTION: A seat ring 2 is fitted in a valve body 1 of a butterfly valve to form a circular flow hole 3, both sides of the valve body 1 being held between lugs 2a on both sides of the ring's external circumference. A valve shaft 4 is held by the valve body 1 in the direction vertically cutting the diameter of flow hole 3, and as the valve shaft 4 is turned, a valve 5 which is solid with the shaft 4 opens or closes the flow hole 3. Anuular grooves 7 are made in the circumferential direction on the cylindrical inner surface of the valve body 1, so that they are symmetrically arranged on both sides of a hole 6 for inserting the valve shaft 4. As the compressive force caused by fluid pressure and the external rim of the valve 5 is applied to the seat ring 2, its external circumference is expanded and eugaged with the annular grooves 7, which can prevent aberration of the ring 2.
COPYRIGHT: (C)1980,JPO&Japio
JP16211478A 1978-12-25 1978-12-25 Butterfly valve Pending JPS5586965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16211478A JPS5586965A (en) 1978-12-25 1978-12-25 Butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16211478A JPS5586965A (en) 1978-12-25 1978-12-25 Butterfly valve

Publications (1)

Publication Number Publication Date
JPS5586965A true JPS5586965A (en) 1980-07-01

Family

ID=15748301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16211478A Pending JPS5586965A (en) 1978-12-25 1978-12-25 Butterfly valve

Country Status (1)

Country Link
JP (1) JPS5586965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005002876A1 (en) * 2005-01-21 2006-08-17 Groupinox Gmbh Shut-off device has insert groove and support element extending into insert groove and intervening to retain inlaid sealing element and passage housing is present whose walls delimit passage channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005002876A1 (en) * 2005-01-21 2006-08-17 Groupinox Gmbh Shut-off device has insert groove and support element extending into insert groove and intervening to retain inlaid sealing element and passage housing is present whose walls delimit passage channel

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