IT1219508B - Pistone a gradino per valvola di sicurezza azionata da valvola pilota bilanciata - Google Patents
Pistone a gradino per valvola di sicurezza azionata da valvola pilota bilanciataInfo
- Publication number
- IT1219508B IT1219508B IT47750/88A IT4775088A IT1219508B IT 1219508 B IT1219508 B IT 1219508B IT 47750/88 A IT47750/88 A IT 47750/88A IT 4775088 A IT4775088 A IT 4775088A IT 1219508 B IT1219508 B IT 1219508B
- Authority
- IT
- Italy
- Prior art keywords
- step piston
- operated
- safety valve
- pilot valve
- balanced pilot
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2880387A | 1987-03-23 | 1987-03-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8847750A0 IT8847750A0 (it) | 1988-03-18 |
IT1219508B true IT1219508B (it) | 1990-05-18 |
Family
ID=21845522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT47750/88A IT1219508B (it) | 1987-03-23 | 1988-03-18 | Pistone a gradino per valvola di sicurezza azionata da valvola pilota bilanciata |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS63254278A (it) |
KR (1) | KR880011511A (it) |
CN (1) | CN88101490A (it) |
AU (1) | AU1320088A (it) |
BR (1) | BR8801154A (it) |
ES (1) | ES2006604A6 (it) |
FR (1) | FR2613020A1 (it) |
GB (1) | GB2202612A (it) |
IT (1) | IT1219508B (it) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU88384A1 (de) * | 1993-07-16 | 1995-02-01 | Hydrolux Sarl | 2-Wege-Einbauventil als Sitzventil |
ES2132844T3 (es) * | 1995-11-16 | 1999-08-16 | Boc Group Plc | Valvulas de reduccion de la presion. |
DE19727003A1 (de) * | 1997-06-25 | 1999-01-07 | Bosch Gmbh Robert | Hydraulisch vorsteuerbares Druckventil |
CN100380033C (zh) * | 2003-08-19 | 2008-04-09 | 查谦 | 背压平衡式最小压力阀 |
US8870233B2 (en) | 2007-07-03 | 2014-10-28 | S.P.M. Flow Control, Inc. | Swivel joint with uniform ball bearing requirements |
CN101220881B (zh) * | 2007-12-18 | 2010-06-23 | 刘梦真 | 断压装置 |
BE1018073A3 (nl) * | 2008-03-27 | 2010-04-06 | Atlas Copco Airpower Nv | Minimum-drukventiel. |
CN101476564B (zh) * | 2009-01-20 | 2010-12-01 | 曹康年 | 安全诱导阀 |
WO2010123889A2 (en) | 2009-04-20 | 2010-10-28 | Weir Spm, Inc. | Flowline flapper valve |
CN101876388B (zh) * | 2009-05-01 | 2014-05-07 | 丛洋 | 减压阀、压缩气体供气系统及制冷系统 |
BRPI1012929A2 (pt) | 2009-06-03 | 2018-01-30 | Spm Flow Control Inc | válvula, e, mecanismo de acionamento melhorado. |
CN101839359B (zh) * | 2009-11-18 | 2012-01-11 | 南京工程学院 | 变差溢流阀 |
KR101315063B1 (ko) * | 2012-01-25 | 2013-10-08 | 주식회사 만도 | 제동감 향상을 위한 초기 유량 증대 시스템 및 이를 이용한 초기 유량 증대 방법 |
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 |
US9568138B2 (en) | 2013-07-01 | 2017-02-14 | S.P.M. Flow Control, Inc. | Manifold assembly |
RU2560651C2 (ru) * | 2013-08-08 | 2015-08-20 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Динамически устойчивый дренажно-предохранительный клапан |
CN103644339A (zh) * | 2013-11-25 | 2014-03-19 | 大连元利流体技术有限公司 | 一种耐污染先导式溢流阀 |
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 (zh) * | 2016-11-25 | 2019-10-15 | 环境保护部核与辐射安全中心 | 用于安全阀的触发装置 |
CN106523750B (zh) * | 2016-12-26 | 2018-11-23 | 苏州艾尔泰流体控制有限公司 | 一种泄压阀加速器及泄压结构 |
Family Cites Families (12)
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 (de) * | 1956-06-22 | 1960-03-31 | Ludwig Rexroth | Vorrichtung zum Einhalten eines festgelegten Solldrucks in hydraulischen Anlagen mit einem Vorregelventil und einem Hauptventil |
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 (fr) * | 1960-04-07 | 1961-06-09 | Zenith Carburateur Soc Du | Dispositif de sécurité pour installation de distribution de fluide sous pression, en vue notamment de la protection contre les ruptures de canalisations de carburant |
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 |
-
1988
- 1988-03-01 FR FR8802551A patent/FR2613020A1/fr active Pending
- 1988-03-02 GB GB08804944A patent/GB2202612A/en not_active Withdrawn
- 1988-03-14 BR BR8801154A patent/BR8801154A/pt unknown
- 1988-03-17 AU AU13200/88A patent/AU1320088A/en not_active Abandoned
- 1988-03-18 IT IT47750/88A patent/IT1219508B/it active
- 1988-03-18 CN CN198888101490A patent/CN88101490A/zh active Pending
- 1988-03-22 ES ES8800869A patent/ES2006604A6/es not_active Expired
- 1988-03-23 KR KR1019880003082A patent/KR880011511A/ko not_active Application Discontinuation
- 1988-03-23 JP JP63067469A patent/JPS63254278A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ES2006604A6 (es) | 1989-05-01 |
KR880011511A (ko) | 1988-10-28 |
JPS63254278A (ja) | 1988-10-20 |
FR2613020A1 (fr) | 1988-09-30 |
IT8847750A0 (it) | 1988-03-18 |
AU1320088A (en) | 1988-09-22 |
GB2202612A (en) | 1988-09-28 |
BR8801154A (pt) | 1988-10-25 |
CN88101490A (zh) | 1988-10-26 |
GB8804944D0 (en) | 1988-03-30 |
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