JPS55109862A - Aseismatic shut-valve - Google Patents

Aseismatic shut-valve

Info

Publication number
JPS55109862A
JPS55109862A JP1709279A JP1709279A JPS55109862A JP S55109862 A JPS55109862 A JP S55109862A JP 1709279 A JP1709279 A JP 1709279A JP 1709279 A JP1709279 A JP 1709279A JP S55109862 A JPS55109862 A JP S55109862A
Authority
JP
Japan
Prior art keywords
valve
shut
valve body
earthquake
gas
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
JP1709279A
Other languages
Japanese (ja)
Inventor
Goro Saito
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.)
Fujikoki Corp
Original Assignee
Fujikoki Corp
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 Fujikoki Corp filed Critical Fujikoki Corp
Priority to JP1709279A priority Critical patent/JPS55109862A/en
Publication of JPS55109862A publication Critical patent/JPS55109862A/en
Pending legal-status Critical Current

Links

Landscapes

  • Safety Valves (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

PURPOSE: To improve safety by making it possible to do operation for stability of a valve body manually only when there is no gas leak in such a way that discrimination is done to the fact whether or not there is gas leak at the time of stabilizing the valve body to its opening position which is done after the earthquake has died down.
CONSTITUTION: At the occurrence of the earthquake, when a stopper pin 22 interlocked with a seismosensor through cable 21 comes off an engaging groove 20a of a disc 20, an operating rod 17 is swiveled by a spring 19, and when the tip of a valve rod 16 comes to cope with the recessed part 17a, the valve body 13 is thrusted to a valve seat 12b to close a passage bore 12a and shut off gas supply. After earthquake, in case of reopening gas supply, a valve downstream of said aseismatic shut- valve is shut off, a bypass valve making its roundabout route around the shut-valve is made properly open, the pipeline to the downstream valve is filled with gas. In this event, if there is leak in said pipeline, pressure in a passage B does not rise to a settled pressure, opening valve of the valve body 13 is hindered without realizing a bite of a clutch 26 through a lever 41.
COPYRIGHT: (C)1980,JPO&Japio
JP1709279A 1979-02-15 1979-02-15 Aseismatic shut-valve Pending JPS55109862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1709279A JPS55109862A (en) 1979-02-15 1979-02-15 Aseismatic shut-valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1709279A JPS55109862A (en) 1979-02-15 1979-02-15 Aseismatic shut-valve

Publications (1)

Publication Number Publication Date
JPS55109862A true JPS55109862A (en) 1980-08-23

Family

ID=11934338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1709279A Pending JPS55109862A (en) 1979-02-15 1979-02-15 Aseismatic shut-valve

Country Status (1)

Country Link
JP (1) JPS55109862A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463773A (en) * 1980-11-21 1984-08-07 Yamatake-Honeywell Co., Ltd. Safety shut-off valve
JPH061997U (en) * 1991-12-26 1994-01-14 ホーチキ株式会社 Operation device for gas emergency shutoff valve
CN106499850A (en) * 2016-12-22 2017-03-15 邹启榆 A kind of gas safe Anti-leakage self-close device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463773A (en) * 1980-11-21 1984-08-07 Yamatake-Honeywell Co., Ltd. Safety shut-off valve
JPH061997U (en) * 1991-12-26 1994-01-14 ホーチキ株式会社 Operation device for gas emergency shutoff valve
CN106499850A (en) * 2016-12-22 2017-03-15 邹启榆 A kind of gas safe Anti-leakage self-close device
CN106499850B (en) * 2016-12-22 2018-09-21 邹启榆 A kind of gas safe Anti-leakage self-close device

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