JPS5663164A - Gate valve - Google Patents

Gate valve

Info

Publication number
JPS5663164A
JPS5663164A JP13869979A JP13869979A JPS5663164A JP S5663164 A JPS5663164 A JP S5663164A JP 13869979 A JP13869979 A JP 13869979A JP 13869979 A JP13869979 A JP 13869979A JP S5663164 A JPS5663164 A JP S5663164A
Authority
JP
Japan
Prior art keywords
valve body
seat
piston
chamber
line
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
JP13869979A
Other languages
Japanese (ja)
Other versions
JPS6325232B2 (en
Inventor
Takamasa Arikawa
Norimasa Arashima
Toshiharu Suzuki
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP13869979A priority Critical patent/JPS5663164A/en
Publication of JPS5663164A publication Critical patent/JPS5663164A/en
Publication of JPS6325232B2 publication Critical patent/JPS6325232B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sliding Valves (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

PURPOSE: To make good sealing by forming a part of flow line on the both sides of a valve body whose side faces are tapered and slidably placing a ring seat.
CONSTITUTION: When flow line 2 is closed, no pressurized liquid is supplied to liquid pressure chamber 8 and 14 for pressure reduction. A piston 12 rises due to the working of springs 18 and 19 and at the same time a valve body 5 rises while spreading a ring seat 6. When the ring seat 6 is stopped by a key 7, the valve body 5 and the seat 6 wedge into each other, and the rise of the valve body 5 and piston 12 stops. Therefore, large surface pressure works between the valve 5 and seat 6 due to the wedging force generated by springs 18 and 19. For opening the line 2, the piston 12 and valve body 5 are lowered by supplying pressurized liquid to the chamber 14 until the flow course 4 of the valve body 5 and the line 2 agree with each other. Surface pressure is generated between the valve body 5 and seat 6 when pressurized liquid is supplied to the chamber 8.
COPYRIGHT: (C)1981,JPO&Japio
JP13869979A 1979-10-29 1979-10-29 Gate valve Granted JPS5663164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13869979A JPS5663164A (en) 1979-10-29 1979-10-29 Gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13869979A JPS5663164A (en) 1979-10-29 1979-10-29 Gate valve

Publications (2)

Publication Number Publication Date
JPS5663164A true JPS5663164A (en) 1981-05-29
JPS6325232B2 JPS6325232B2 (en) 1988-05-24

Family

ID=15228050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13869979A Granted JPS5663164A (en) 1979-10-29 1979-10-29 Gate valve

Country Status (1)

Country Link
JP (1) JPS5663164A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487527A (en) * 1994-06-02 1996-01-30 Fisher Controls International, Inc. Valve actuator
JP2019199918A (en) * 2018-05-16 2019-11-21 東京瓦斯株式会社 Pipe line branching system, and pipe lien branching method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852034A (en) * 1971-11-01 1973-07-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852034A (en) * 1971-11-01 1973-07-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487527A (en) * 1994-06-02 1996-01-30 Fisher Controls International, Inc. Valve actuator
JP2019199918A (en) * 2018-05-16 2019-11-21 東京瓦斯株式会社 Pipe line branching system, and pipe lien branching method

Also Published As

Publication number Publication date
JPS6325232B2 (en) 1988-05-24

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