GB8804944D0 - Stepped piston for balanced pilot operated safety relief valve - Google Patents

Stepped piston for balanced pilot operated safety relief valve

Info

Publication number
GB8804944D0
GB8804944D0 GB888804944A GB8804944A GB8804944D0 GB 8804944 D0 GB8804944 D0 GB 8804944D0 GB 888804944 A GB888804944 A GB 888804944A GB 8804944 A GB8804944 A GB 8804944A GB 8804944 D0 GB8804944 D0 GB 8804944D0
Authority
GB
United Kingdom
Prior art keywords
relief valve
pilot operated
stepped piston
safety relief
operated safety
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.)
Withdrawn
Application number
GB888804944A
Other versions
GB2202612A (en
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of GB8804944D0 publication Critical patent/GB8804944D0/en
Publication of GB2202612A publication Critical patent/GB2202612A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
GB08804944A 1987-03-23 1988-03-02 Safety relief valve Withdrawn GB2202612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2880387A 1987-03-23 1987-03-23

Publications (2)

Publication Number Publication Date
GB8804944D0 true GB8804944D0 (en) 1988-03-30
GB2202612A GB2202612A (en) 1988-09-28

Family

ID=21845522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08804944A Withdrawn GB2202612A (en) 1987-03-23 1988-03-02 Safety relief valve

Country Status (9)

Country Link
JP (1) JPS63254278A (en)
KR (1) KR880011511A (en)
CN (1) CN88101490A (en)
AU (1) AU1320088A (en)
BR (1) BR8801154A (en)
ES (1) ES2006604A6 (en)
FR (1) FR2613020A1 (en)
GB (1) GB2202612A (en)
IT (1) IT1219508B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU88384A1 (en) * 1993-07-16 1995-02-01 Hydrolux Sarl 2-way cartridge valve as a seat valve
CA2189613C (en) * 1995-11-16 2004-07-20 David William Birch Pressure reduction valve
DE19727003A1 (en) * 1997-06-25 1999-01-07 Bosch Gmbh Robert Hydraulically pilot operated pressure valve
CN100380033C (en) * 2003-08-19 2008-04-09 查谦 Back-pressure balancing minimum pressure valves
US8870233B2 (en) 2007-07-03 2014-10-28 S.P.M. Flow Control, Inc. Swivel joint with uniform ball bearing requirements
CN101220881B (en) * 2007-12-18 2010-06-23 刘梦真 Pressure breaking device
BE1018073A3 (en) * 2008-03-27 2010-04-06 Atlas Copco Airpower Nv MINIMUM PRESSURE VALVE.
CN101476564B (en) * 2009-01-20 2010-12-01 曹康年 Security induction valve
WO2010123889A2 (en) 2009-04-20 2010-10-28 Weir Spm, Inc. Flowline flapper valve
CN101876388B (en) * 2009-05-01 2014-05-07 丛洋 Pressure-reducing valve, compressed gas supply system and cooling system
WO2010141651A2 (en) 2009-06-03 2010-12-09 Weir Spm, Inc. Plug valve indicator
CN101839359B (en) * 2009-11-18 2012-01-11 南京工程学院 Variable-difference relief valve
KR101315063B1 (en) * 2012-01-25 2013-10-08 주식회사 만도 Pre-fill system to improve brake feeling and method for flux increase beginning thereof
WO2014028498A2 (en) 2012-08-16 2014-02-20 S.P.M. Flow Control, Inc. Plug valve having preloaded seal segments
US9322243B2 (en) 2012-08-17 2016-04-26 S.P.M. Flow Control, Inc. Automated relief valve control system and method
US9273543B2 (en) 2012-08-17 2016-03-01 S.P.M. Flow Control, Inc. Automated relief valve control system and method
USD707332S1 (en) 2013-03-15 2014-06-17 S.P.M. Flow Control, Inc. Seal assembly
USD707797S1 (en) 2013-03-15 2014-06-24 S.P.M. Flow Control, Inc. Seal segment
WO2015002863A1 (en) 2013-07-01 2015-01-08 S.P.M. Flow Control, Inc. Manifold assembly
RU2560651C2 (en) * 2013-08-08 2015-08-20 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Dynamically stable drain safety valve
CN103644339A (en) * 2013-11-25 2014-03-19 大连元利流体技术有限公司 Pollution resistant pilot operated relief valve
WO2016205208A1 (en) 2015-06-15 2016-12-22 S.P.M. Flow Control, Inc. Full-root-radius-threaded wing nut having increased wall thickness
US10677365B2 (en) 2015-09-04 2020-06-09 S.P.M. Flow Control, Inc. Pressure relief valve assembly and methods
CN108105399B (en) * 2016-11-25 2019-10-15 环境保护部核与辐射安全中心 Trigger device for safety valve
CN106523750B (en) * 2016-12-26 2018-11-23 苏州艾尔泰流体控制有限公司 A kind of relief valve accelerator and pressure relief

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB229147A (en) * 1924-05-03 1925-02-19 Babcock & Wilcox Ltd Improvements relating to safety valves
GB267978A (en) * 1926-03-20 1927-06-23 Forges Chantiers Mediterranee Safety valve
DE1078837B (en) * 1956-06-22 1960-03-31 Ludwig Rexroth Device for maintaining a specified target pressure in hydraulic systems with a pre-control valve and a main valve
GB901061A (en) * 1958-12-02 1962-07-11 Von Roll Ag Improvements in or relating to safety valves
US3083726A (en) * 1959-09-04 1963-04-02 Cameron Iron Works Inc High and low pressure responsive cut-off valve
FR1263250A (en) * 1960-04-07 1961-06-09 Zenith Carburateur Soc Du Safety device for pressurized fluid distribution installation, with a view in particular to protection against ruptured fuel lines
GB1116474A (en) * 1966-06-14 1968-06-06 Exni Instttut Metallorezhuschi Safety valve
US3578019A (en) * 1968-01-04 1971-05-11 Marco Turolla Relief valve unit for hydraulic pressure lines
US3608580A (en) * 1969-12-18 1971-09-28 Kelsey Hayes Co Pilot-operated relief valve
US4075928A (en) * 1974-05-31 1978-02-28 Ross Operating Valve Company Safety valve for fluid systems
US4462420A (en) * 1982-06-14 1984-07-31 Teledyne Farris Engineering Safety pressure relief valve
US4586533A (en) * 1985-07-01 1986-05-06 Crosby Valve & Gage Company Non-flowing modulating pilot operated relief valve

Also Published As

Publication number Publication date
JPS63254278A (en) 1988-10-20
ES2006604A6 (en) 1989-05-01
IT8847750A0 (en) 1988-03-18
BR8801154A (en) 1988-10-25
FR2613020A1 (en) 1988-09-30
KR880011511A (en) 1988-10-28
GB2202612A (en) 1988-09-28
CN88101490A (en) 1988-10-26
IT1219508B (en) 1990-05-18
AU1320088A (en) 1988-09-22

Similar Documents

Publication Publication Date Title
GB8804944D0 (en) Stepped piston for balanced pilot operated safety relief valve
GB2163793B (en) Balance line hydraulically operated well safety valve
AU583353B2 (en) Pilot operated relief valve
AU557692B2 (en) Pilot operated relief valve
GB2047304B (en) Piston actuated well safety valve
GB2209043B (en) Subsurface well safety valve
GB8708655D0 (en) Safety valve
GB2222622B (en) Dual hydraulic safety valve
GB2079352B (en) Subssurface safety valve for wells
EP0364603A4 (en) Hydraulic pilot valve.
GB2199604B (en) Hydraulic valve actuating means for subsurface safety valve
AU7427387A (en) Improved safety relief valve
JPS5751071A (en) Pilot operating type safety valve
AU1521288A (en) A safety valve
GB8621516D0 (en) Pilot operated valves
GB2217753B (en) Pilot operated safety valve
AU1341088A (en) Pipe-fracture safety valve
GB2119132B (en) Pilot operated relief valve
GB8827994D0 (en) Safety valve
AU7972287A (en) Float controlled pilot relief operated valve
CS657090A3 (en) Pressure pilot valve
AU3572684A (en) Hydraulic safety valve
AU564764B2 (en) Pilot operated relief valve
GB2234368B (en) Pilot operated valves
GB2195900B (en) Pilot operated valves

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)