JPS5659062A - Valve seat structure for butterfly-type check valve - Google Patents

Valve seat structure for butterfly-type check valve

Info

Publication number
JPS5659062A
JPS5659062A JP13535379A JP13535379A JPS5659062A JP S5659062 A JPS5659062 A JP S5659062A JP 13535379 A JP13535379 A JP 13535379A JP 13535379 A JP13535379 A JP 13535379A JP S5659062 A JPS5659062 A JP S5659062A
Authority
JP
Japan
Prior art keywords
valve
valve body
valve seat
periphery
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.)
Pending
Application number
JP13535379A
Other languages
Japanese (ja)
Inventor
Takakazu Oshima
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP13535379A priority Critical patent/JPS5659062A/en
Publication of JPS5659062A publication Critical patent/JPS5659062A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lift Valve (AREA)

Abstract

PURPOSE: To facilitate the closing of a valve body and promote the sealing-up effect in a butterfly-type check valve which opens and closes the valve body by an eccentric valve stem by giving a preceding pressure to a valve seat by the valve body at the time of perfect closing.
CONSTITUTION: When a valve body B is closed, the periphery 2 of the valve body B is forced to the inside of a valve seat (a). The valve seat (a) is elastic and shaped like a hook, and the valve body B is brought in contact with the valve seat (a) with a fixed preceding pressure. When the valve body B is turned by 90° to be opened from the closed state, since a valve stem 1 is eccentric to the valve body B and a valve trunk C, the periphery 2 is immediately separated from the inside of the valve seat (a). When the valve body B is opened, the periphery 2 is clearly separated from the inside of the valve seat (a). When closed, the periphery 2 is not given any sliding to be in touch with the valve seat (a) until the former is tightly forced to the inside of the latter.
COPYRIGHT: (C)1981,JPO&Japio
JP13535379A 1979-10-19 1979-10-19 Valve seat structure for butterfly-type check valve Pending JPS5659062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13535379A JPS5659062A (en) 1979-10-19 1979-10-19 Valve seat structure for butterfly-type check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13535379A JPS5659062A (en) 1979-10-19 1979-10-19 Valve seat structure for butterfly-type check valve

Publications (1)

Publication Number Publication Date
JPS5659062A true JPS5659062A (en) 1981-05-22

Family

ID=15149764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13535379A Pending JPS5659062A (en) 1979-10-19 1979-10-19 Valve seat structure for butterfly-type check valve

Country Status (1)

Country Link
JP (1) JPS5659062A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015218833A (en) * 2014-05-19 2015-12-07 愛三工業株式会社 Double eccentric valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086715A (en) * 1973-12-05 1975-07-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086715A (en) * 1973-12-05 1975-07-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015218833A (en) * 2014-05-19 2015-12-07 愛三工業株式会社 Double eccentric valve

Similar Documents

Publication Publication Date Title
JPS6464609A (en) Pressure-responsive valve
JPS5659062A (en) Valve seat structure for butterfly-type check valve
JPS5250010A (en) Fluid injection valve
JPS5434117A (en) Auto-stop nozzle
JPS563358A (en) Emergency shut-off valve
JPS6483820A (en) Control device for engine with supercharger
JPS553506A (en) Timer for gas instrument
JPS527006A (en) Diaphragm pump
GB896674A (en) Improved snap hook
JPS54106910A (en) Lid opening & shutting mechanism of pressure container
JPS5442524A (en) Suction device of engine
JPS5797514A (en) Opening and closing device for bow of spectacles
JPS5593915A (en) Combined mushroom-shaped valve device
GB842105A (en) Improvements relating to butterfly valves
GB1481560A (en) Drinking device for cattle
JPS5382930A (en) Throttle operating apparatus of sliding valve system carburetor
JPS5220170A (en) Hinge structure of containers
JPS5540343A (en) Valve device
JPS5336020A (en) Opening and closing device for cover of pressure vessel
JPS5351309A (en) Steam control valve opening process
GB898049A (en) Improvements to fluid flow control valves
JPS51113238A (en) Control equipment of jule tomson valve
JPS56124771A (en) Closed type butterfly valve
GB864455A (en) Improvements in or relating to non-return flap valves for use in inflatable structures
JPS5663175A (en) Opening and closing operation device for rotary-valve