JPS5790472A - Safety cutoff valve - Google Patents

Safety cutoff valve

Info

Publication number
JPS5790472A
JPS5790472A JP16500680A JP16500680A JPS5790472A JP S5790472 A JPS5790472 A JP S5790472A JP 16500680 A JP16500680 A JP 16500680A JP 16500680 A JP16500680 A JP 16500680A JP S5790472 A JPS5790472 A JP S5790472A
Authority
JP
Japan
Prior art keywords
passage
gas
solenoid valve
valve
pressure
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
JP16500680A
Other languages
Japanese (ja)
Other versions
JPS5932707B2 (en
Inventor
Tadashi Kojima
Tetsuo Uchihama
Kazuyoshi Tanaka
Eiichi Morozumi
Kentaro Inoue
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.)
Azbil Corp
Original Assignee
Azbil 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 Azbil Corp filed Critical Azbil Corp
Priority to JP55165006A priority Critical patent/JPS5932707B2/en
Priority to AU78928/81A priority patent/AU7892881A/en
Priority to US06/361,926 priority patent/US4463773A/en
Priority to EP19810903081 priority patent/EP0064560A4/en
Priority to PCT/JP1981/000351 priority patent/WO1982001756A1/en
Publication of JPS5790472A publication Critical patent/JPS5790472A/en
Priority to DK327482A priority patent/DK327482A/en
Publication of JPS5932707B2 publication Critical patent/JPS5932707B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make resetting of main valve unable when gas pressure does not rise at the stage of resupply of the gas because of the leakage in the secondary side, by installing diaphragm weans in the main valve open and close mechanism to work cooperatively.
CONSTITUTION: When cutoff signal is issued with arising of abnormal condition, the detection circuit 23 feeds operation signal SG3 to the solenoid valve 13. The solenoid valve 13 opens the passage 12a, release fluid in the chamber 3, makes the follower 4 to ascend and the feed of gas to the exit passage 9 is cutoff. Now, when reset signal is fed to the control circuit 22, the solenoid valve 18 is opened, however, when there are gas leakage to the side of the passage 9, secondary pressure to the passage 9 side does not rise up to the set value and the diaphragm valve 14 does not close, the pressure in the pressure chamber 3 does not rise and the valve body 6 does not move to the open position. The solenoid valve 18 will be closed after a certain time.
COPYRIGHT: (C)1982,JPO&Japio
JP55165006A 1980-11-21 1980-11-21 safety shutoff valve Expired JPS5932707B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP55165006A JPS5932707B2 (en) 1980-11-21 1980-11-21 safety shutoff valve
AU78928/81A AU7892881A (en) 1980-11-21 1981-11-20 Safety shut-off valve
US06/361,926 US4463773A (en) 1980-11-21 1981-11-20 Safety shut-off valve
EP19810903081 EP0064560A4 (en) 1980-11-21 1981-11-20 Safety shut-off valve.
PCT/JP1981/000351 WO1982001756A1 (en) 1980-11-21 1981-11-20 Safety shut-off valve
DK327482A DK327482A (en) 1980-11-21 1982-07-21 SAFETY SEARCH VALVE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55165006A JPS5932707B2 (en) 1980-11-21 1980-11-21 safety shutoff valve

Publications (2)

Publication Number Publication Date
JPS5790472A true JPS5790472A (en) 1982-06-05
JPS5932707B2 JPS5932707B2 (en) 1984-08-10

Family

ID=15804045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55165006A Expired JPS5932707B2 (en) 1980-11-21 1980-11-21 safety shutoff valve

Country Status (1)

Country Link
JP (1) JPS5932707B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62200333U (en) * 1986-06-10 1987-12-21

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5086711A (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
JPS5086711A (en) * 1973-12-05 1975-07-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62200333U (en) * 1986-06-10 1987-12-21
JPH039740Y2 (en) * 1986-06-10 1991-03-11

Also Published As

Publication number Publication date
JPS5932707B2 (en) 1984-08-10

Similar Documents

Publication Publication Date Title
JPS5724463A (en) Automatic air extractor for electromagnetic plunger pump
ES447368A1 (en) Nuclear reactor installation
JPS5779247A (en) Exhaust gas recirculating equipment
JPS5790472A (en) Safety cutoff valve
JPS5646180A (en) Pilot valve
JPS5618054A (en) Opening regulator for throttle valve
JPS5620807A (en) Amount of flow and pressure control system
JPS5443311A (en) Method of sealing vent gas line of low temperature liquid
JPS57163786A (en) Safety shut-off valve
JPS5729719A (en) Automatic shutting device for dam
JPS55145862A (en) Valve in automatic pressure reducing system
JPS5663179A (en) Flow controller
JPS56120865A (en) Gas pressure complementing valve
JPS54108041A (en) Freezing preventing apparatus of hot water supplier
JPS5757979A (en) Valve device
JPS57127170A (en) Safety shut-off valve
JPS55119271A (en) Opening/closing valve device
JPS5442533A (en) Exhaust gas recycle device
JPS5777849A (en) Safety valve of hot water feeder
JPS5688028A (en) Blocking, checking controller in pulverized body transportation device
JPS57110870A (en) Emergency shut valve
JPS5635802A (en) Hydraulic circuit for takeout of divergent pressure oil such as pilot pressure oil
JPS56127117A (en) Gas safety device
JPS57171173A (en) Fuse cock with resetting mechanism
JPS5431788A (en) Remote supervising apparatus of water pressures