JPS57110886A - Safety cut off valve - Google Patents

Safety cut off valve

Info

Publication number
JPS57110886A
JPS57110886A JP18859180A JP18859180A JPS57110886A JP S57110886 A JPS57110886 A JP S57110886A JP 18859180 A JP18859180 A JP 18859180A JP 18859180 A JP18859180 A JP 18859180A JP S57110886 A JPS57110886 A JP S57110886A
Authority
JP
Japan
Prior art keywords
signal
valve
gas
cut
outlet passage
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
JP18859180A
Other languages
Japanese (ja)
Inventor
Tadashi Kojima
Tetsuo Uchihama
Kazuyoshi Tanaka
Eiichi Morozumi
Kentaro Inoue
Naomichi Shito
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 JP18859180A priority Critical patent/JPS57110886A/en
Priority to US06/361,926 priority patent/US4463773A/en
Priority to AU78928/81A priority patent/AU7892881A/en
Priority to EP19810903081 priority patent/EP0064560A4/en
Priority to PCT/JP1981/000351 priority patent/WO1982001756A1/en
Publication of JPS57110886A publication Critical patent/JPS57110886A/en
Priority to DK327482A priority patent/DK327482A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Abstract

PURPOSE: To eliminate malfunction and maintain safety by confirming no gas leak at the secondary side before performing valve opening function at the time or resetting after a cut-off performance.
CONSTITUTION: When an abnormal event occurs and a cut-off signal is received, a detector controller circut 19 issues an operation signal (SG3) to a solenoid valve 13. Upon receiving this signal, the solenoid valve 13 opens a communicating passage 12, and a responsively moved body 4 brings up the valve body 6 until it is pressed against the valve seat 10, so that the gas supply to the outlet passage 9 is cut off. If there is a leak of gas at the outlet passage 9, a signal is issued from a gas flow detecting device 17 to a sequential control circuit 18 which, upon receiving this signal, cuts off the operation signal (SG2) to the solenoid valve 15, so that no operation signal (SG1) is issued to an electromagnetic pump 1. The valve body 6 is maintained at the closed state, accordingly, so that no gas is supplid to the outlet passage 9.
COPYRIGHT: (C)1982,JPO&Japio
JP18859180A 1980-11-21 1980-12-27 Safety cut off valve Pending JPS57110886A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP18859180A JPS57110886A (en) 1980-12-27 1980-12-27 Safety cut off valve
US06/361,926 US4463773A (en) 1980-11-21 1981-11-20 Safety shut-off valve
AU78928/81A AU7892881A (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
JP18859180A JPS57110886A (en) 1980-12-27 1980-12-27 Safety cut off valve

Publications (1)

Publication Number Publication Date
JPS57110886A true JPS57110886A (en) 1982-07-09

Family

ID=16226337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18859180A Pending JPS57110886A (en) 1980-11-21 1980-12-27 Safety cut off valve

Country Status (1)

Country Link
JP (1) JPS57110886A (en)

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