JPS6487978A - Seat ring for butterfly valve - Google Patents

Seat ring for butterfly valve

Info

Publication number
JPS6487978A
JPS6487978A JP24489287A JP24489287A JPS6487978A JP S6487978 A JPS6487978 A JP S6487978A JP 24489287 A JP24489287 A JP 24489287A JP 24489287 A JP24489287 A JP 24489287A JP S6487978 A JPS6487978 A JP S6487978A
Authority
JP
Japan
Prior art keywords
bite
valve unit
mountain
valve
amount
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
JP24489287A
Other languages
Japanese (ja)
Other versions
JPH0457912B2 (en
Inventor
Koichi Hisada
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.)
Tomoe Technical Research Co Ltd
Original Assignee
Tomoe Technical Research 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 Tomoe Technical Research Co Ltd filed Critical Tomoe Technical Research Co Ltd
Priority to JP24489287A priority Critical patent/JPS6487978A/en
Publication of JPS6487978A publication Critical patent/JPS6487978A/en
Publication of JPH0457912B2 publication Critical patent/JPH0457912B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)

Abstract

PURPOSE:To improve controllability of a valve provided with the flow characteristic approaching the linear characteristic by changing a mountain-shaped seat part in its radius, width and internal diameter and setting a valve unit peripheral edge in its bite-in amount and bite-in moving distance into a seat so as to be equal in the valve unit peripheral edge in its arbitrary position. CONSTITUTION:A seat ring 16, adapted to a valve unit 11 when it is closed, is constituted of the first and second mountain-shaped seat parts. The first mountain-shaped part changes its radius R, width W and internal diameter X4, setting a valve unit peripheral wedge in its bite-in amount (t) and bite-in moving distance E into the seat ring 16 so as to be equal in the valve unit in its arbitrary peripheral edge. While the second mountain-shaped seat part, to which the point end edge surface of the valve 11 is forced to be adapted decreasing the bite-in moving distance, is formed in the vicinity of a boss part 12. Thus eliminating an unnecessary bite-in amount, valve shaft torque decreases its change. While obtaining about 10-20 deg. fully closed seal position, the opening- flow amount characteristic approaches the linear.
JP24489287A 1987-09-29 1987-09-29 Seat ring for butterfly valve Granted JPS6487978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24489287A JPS6487978A (en) 1987-09-29 1987-09-29 Seat ring for butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24489287A JPS6487978A (en) 1987-09-29 1987-09-29 Seat ring for butterfly valve

Publications (2)

Publication Number Publication Date
JPS6487978A true JPS6487978A (en) 1989-04-03
JPH0457912B2 JPH0457912B2 (en) 1992-09-16

Family

ID=17125532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24489287A Granted JPS6487978A (en) 1987-09-29 1987-09-29 Seat ring for butterfly valve

Country Status (1)

Country Link
JP (1) JPS6487978A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744195U (en) * 1991-04-12 1995-11-07 啓治 吉田 Drinking protection sticker
CN1309977C (en) * 2001-07-04 2007-04-11 奥村工程株式会社 Butterfly valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3222060B2 (en) * 1996-05-20 2001-10-22 株式会社巴技術研究所 Rotary valve opening display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744195U (en) * 1991-04-12 1995-11-07 啓治 吉田 Drinking protection sticker
CN1309977C (en) * 2001-07-04 2007-04-11 奥村工程株式会社 Butterfly valve

Also Published As

Publication number Publication date
JPH0457912B2 (en) 1992-09-16

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

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LAPS Cancellation because of no payment of annual fees