JPS6151711B2 - - Google Patents

Info

Publication number
JPS6151711B2
JPS6151711B2 JP4960080A JP4960080A JPS6151711B2 JP S6151711 B2 JPS6151711 B2 JP S6151711B2 JP 4960080 A JP4960080 A JP 4960080A JP 4960080 A JP4960080 A JP 4960080A JP S6151711 B2 JPS6151711 B2 JP S6151711B2
Authority
JP
Japan
Prior art keywords
valve
valve opening
dynamic pressure
check valve
bleed
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.)
Expired
Application number
JP4960080A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56147978A (en
Inventor
Tatsuo Imaizumi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4960080A priority Critical patent/JPS56147978A/ja
Publication of JPS56147978A publication Critical patent/JPS56147978A/ja
Publication of JPS6151711B2 publication Critical patent/JPS6151711B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Check Valves (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
JP4960080A 1980-04-17 1980-04-17 Diagnostics for accident of check valve with valve operating device Granted JPS56147978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4960080A JPS56147978A (en) 1980-04-17 1980-04-17 Diagnostics for accident of check valve with valve operating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4960080A JPS56147978A (en) 1980-04-17 1980-04-17 Diagnostics for accident of check valve with valve operating device

Publications (2)

Publication Number Publication Date
JPS56147978A JPS56147978A (en) 1981-11-17
JPS6151711B2 true JPS6151711B2 (US07922777-20110412-C00004.png) 1986-11-10

Family

ID=12835718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4960080A Granted JPS56147978A (en) 1980-04-17 1980-04-17 Diagnostics for accident of check valve with valve operating device

Country Status (1)

Country Link
JP (1) JPS56147978A (US07922777-20110412-C00004.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0419765Y2 (US07922777-20110412-C00004.png) * 1986-07-04 1992-05-06
JPH06105644B2 (ja) * 1986-07-29 1994-12-21 松下電器産業株式会社 マグネツトロ−ル

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288521A4 (en) * 1986-10-29 1991-09-11 Movats Incorporated Check valve testing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0419765Y2 (US07922777-20110412-C00004.png) * 1986-07-04 1992-05-06
JPH06105644B2 (ja) * 1986-07-29 1994-12-21 松下電器産業株式会社 マグネツトロ−ル

Also Published As

Publication number Publication date
JPS56147978A (en) 1981-11-17

Similar Documents

Publication Publication Date Title
RU2378678C2 (ru) Способ и устройство для управления регулирующим клапаном посредством цепи управления, а также для выявления неисправностей в этой цепи
US4353390A (en) Swing check valve with internally balanced disc
KR101158618B1 (ko) 풍력 발전 장치 및 그 건전성 진단 방법
US9046185B2 (en) Method for determining an operating position of an open/closed-valve and field device
IE47030B1 (en) Improvements in or relating to control valves
US20090222233A1 (en) Partial stroke testing system coupled with fuel control valve
CA1163167A (en) Apparatus for individual isolation of hydraulically actuated valves
JP3341511B2 (ja) 主蒸気止め弁のステムフリーテスト装置
JPS6151711B2 (US07922777-20110412-C00004.png)
JPH0771206A (ja) 蒸気タービン・システムにおける弁の性能を評価する診断システムおよび方法
US9650912B2 (en) System and device for over-speed protection of a turbo-machine
CA1153114A (en) Method of sensing malfunctions of check valve mounted in pipeline and apparatus therefor
KR100866352B1 (ko) 유압엑츄에이터의 차단밸브 진단 방법
JP3221960B2 (ja) ヒータドレン排出装置
JP2997605B2 (ja) 蒸気タ−ビンの蒸気弁駆動装置
JPS60215182A (ja) 蒸気弁の診断方法
JPS6146305Y2 (US07922777-20110412-C00004.png)
JPS6160961B2 (US07922777-20110412-C00004.png)
JP3783492B2 (ja) 可変ノズルベーン付きターボチャージャの制御装置
JPH02112604A (ja) ターボ機械の保安装置
JPS6017997B2 (ja) 熱交換器の保護装置
SU1694937A1 (ru) Способ защиты паровой турбины от повреждени
JPS6123972Y2 (US07922777-20110412-C00004.png)
JP2979857B2 (ja) 抽気タービンの抽気逆止め弁の運用装置
JP2000028020A (ja) 緊急遮断弁