CL2019003493A1 - Acoplamiento teniendo un sello con pata central de retracción. - Google Patents
Acoplamiento teniendo un sello con pata central de retracción.Info
- Publication number
- CL2019003493A1 CL2019003493A1 CL2019003493A CL2019003493A CL2019003493A1 CL 2019003493 A1 CL2019003493 A1 CL 2019003493A1 CL 2019003493 A CL2019003493 A CL 2019003493A CL 2019003493 A CL2019003493 A CL 2019003493A CL 2019003493 A1 CL2019003493 A1 CL 2019003493A1
- Authority
- CL
- Chile
- Prior art keywords
- seal
- segments
- coupling
- pipe elements
- central
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title abstract 4
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L17/00—Joints with packing adapted to sealing by fluid pressure
- F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
- F16L17/04—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket with longitudinally split or divided sleeve
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
- F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
- F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends tightened by tangentially-arranged threaded pins
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/12—Joints for pipes being spaced apart axially
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/14—Joints for pipes of different diameters or cross-section
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane
- F16L23/08—Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Gasket Seals (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Joints Allowing Movement (AREA)
- Joints With Sleeves (AREA)
- Joints With Pressure Members (AREA)
- Pens And Brushes (AREA)
- Seal Device For Vehicle (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Valve Housings (AREA)
Abstract
Un acoplamiento para unir elementos de tubería tiene segmentos rodeando un espacio central con cúspides que acoplan con lóbulos de un sello para mantener los segmentos en una relación espaciada en un estado pre-ensamblado. Mientras el acoplamiento está en el estado pre-ensamblado los elementos de tubería podrían ser insertados dentro del espacio central sin desensamblar el acoplamiento y porciones del sello adyacente a los miembros de fijación sobre los segmentos se asientan dentro de un canal definido por los segmentos entre las cúspides. Cuando el sello es comprimido entre los segmentos y los elementos de tubería para formar una junta el sello se deforma con el fin de retirar una pata central del sello de la trayectoria del flujo definida dentro de los elementos de tubería.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762514229P | 2017-06-02 | 2017-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2019003493A1 true CL2019003493A1 (es) | 2020-06-12 |
Family
ID=64455055
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2019003493A CL2019003493A1 (es) | 2017-06-02 | 2019-11-28 | Acoplamiento teniendo un sello con pata central de retracción. |
| CL2020001878A CL2020001878A1 (es) | 2017-06-02 | 2020-07-15 | Acoplamiento teniendo un sello con pata central de retracción. (divisional solicitud 201903493) |
| CL2021002061A CL2021002061A1 (es) | 2017-06-02 | 2021-08-04 | Acoplamiento teniendo un sello con pata central de retracción. (divisional solicitud 201903493) |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2020001878A CL2020001878A1 (es) | 2017-06-02 | 2020-07-15 | Acoplamiento teniendo un sello con pata central de retracción. (divisional solicitud 201903493) |
| CL2021002061A CL2021002061A1 (es) | 2017-06-02 | 2021-08-04 | Acoplamiento teniendo un sello con pata central de retracción. (divisional solicitud 201903493) |
Country Status (20)
| Country | Link |
|---|---|
| US (3) | US11168816B2 (es) |
| EP (2) | EP3631273A4 (es) |
| JP (2) | JP6951475B2 (es) |
| KR (4) | KR20250034189A (es) |
| CN (1) | CN110662917B (es) |
| AU (2) | AU2018278815B2 (es) |
| BR (1) | BR112019022062B1 (es) |
| CA (2) | CA3065508C (es) |
| CL (3) | CL2019003493A1 (es) |
| CO (1) | CO2019013093A2 (es) |
| MX (3) | MX2019014389A (es) |
| MY (1) | MY206293A (es) |
| NZ (1) | NZ770487A (es) |
| PE (2) | PE20250143A1 (es) |
| PH (1) | PH12019502507A1 (es) |
| RU (1) | RU2733892C1 (es) |
| SA (1) | SA519410541B1 (es) |
| TW (1) | TWI723267B (es) |
| WO (1) | WO2018222867A1 (es) |
| ZA (2) | ZA201906942B (es) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12055242B2 (en) | 2018-11-16 | 2024-08-06 | Tyco Fire Products Lp | Systems and methods of quick install gasket |
| CA3044273A1 (en) * | 2019-05-27 | 2020-11-27 | Darcy L. Beaumont | Advanced coupling system |
| US20230160508A1 (en) * | 2020-06-17 | 2023-05-25 | Tyco Fire Products Lp | Pipe coupling gasket |
| JP7646145B2 (ja) * | 2021-02-05 | 2025-03-17 | ノーラエンジニアリング株式会社 | 管継手 |
| RU2766376C1 (ru) * | 2021-02-24 | 2022-03-15 | Общество с ограниченной ответственностью «Новые Трубные Технологии» | Стальная муфта |
| EP4480596A3 (en) * | 2021-10-01 | 2025-03-19 | Victaulic Company | Enhanced stability gasket and coupling |
| US12181083B2 (en) * | 2022-07-21 | 2024-12-31 | Applied System Technologies, Inc. | Pipe coupling |
| CN120225803A (zh) * | 2022-11-21 | 2025-06-27 | 丹佛斯有限公司 | 阀布置,用于阀布置的致动器和夹具,用于组装阀、致动器和夹具的方法 |
| KR102551523B1 (ko) * | 2022-11-30 | 2023-07-05 | (주)뉴아세아 | 파이프 연결용 커플링 어셈블리 및 이의 제조 방법 |
| CN119594255A (zh) * | 2024-11-29 | 2025-03-11 | 广州穗高阀门科技有限公司 | 一种哈夫式连接管件 |
Family Cites Families (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1541601A (en) | 1919-07-07 | 1925-06-09 | Victaulic Company Ltd | Pipe joint |
| US1867891A (en) | 1928-05-26 | 1932-07-19 | Reynolds Donald Hugh Baillie | Pipe joint and the like |
| US1805666A (en) | 1928-07-19 | 1931-05-19 | Westinghouse Air Brake Co | Tube coupling |
| US1808262A (en) | 1929-11-30 | 1931-06-02 | Victaulic Company Ltd | Pipe joint |
| US1821867A (en) | 1930-02-28 | 1931-09-01 | Wylie G Wilson | Joint structure for pipes and the like |
| US2028182A (en) | 1932-04-28 | 1936-01-21 | Jr Ferd Barnickol | Coupling |
| US1994361A (en) | 1933-01-21 | 1935-03-12 | Champion Machine & Forging Com | Gasket for pipe joints |
| US2507261A (en) | 1946-03-06 | 1950-05-09 | Mercier Jean | Coupling |
| US2687906A (en) | 1949-01-26 | 1954-08-31 | Wagner Electric Corp | Swaged type metallic pipe fitting |
| US3004780A (en) | 1956-11-26 | 1961-10-17 | Crane Packing Co | Teflon hose fitting |
| US3062565A (en) | 1959-02-05 | 1962-11-06 | Armco Steel Corp | Well head construction to accommodate plural tube strings |
| US3134612A (en) | 1962-02-12 | 1964-05-26 | Clarence O Glasgow | Gasket ring for pipe couplings |
| US3403931A (en) | 1964-08-11 | 1968-10-01 | Gray Tool Co | Clamp |
| US4189172A (en) | 1977-10-25 | 1980-02-19 | Perrin Duane O | Pipe coupling |
| US4350350A (en) | 1980-04-28 | 1982-09-21 | International Telephone And Telegraph Corporation | Self-compensation gasket for grooved end pipe couplings |
| US4480861A (en) | 1981-02-18 | 1984-11-06 | Columbus Standard, Inc. | Pipe joint and apparatus therefor |
| GB2121133B (en) | 1982-05-22 | 1985-10-16 | Hepworth Plastics Ltd | Pipe couplings |
| DE3567950D1 (en) | 1984-12-11 | 1989-03-02 | Agintec Ag | Tube coupling |
| CH667904A5 (de) | 1985-06-17 | 1988-11-15 | Immanuel Straub | Rohrkupplung. |
| DE3605020A1 (de) * | 1986-02-18 | 1987-08-27 | Rasmussen Gmbh | Steckkupplung |
| US5058931A (en) | 1988-11-28 | 1991-10-22 | Gustin-Bacon Division, A Division Of Tyler Pipe | Clamp with teeth for grooved pipes |
| DE8907124U1 (de) | 1989-05-12 | 1989-10-19 | Alligator Ventilfabrik GmbH, 7928 Giengen | Rohrverbindung zwischen zwei stumpf miteinander zu verbindenden Rohrenden |
| SU1702877A3 (ru) * | 1989-08-17 | 1991-12-30 | Г.А. Струнгис | Разъемное неподвижное уплотнительное устройство |
| US5476292A (en) | 1994-11-07 | 1995-12-19 | Victaulic Plc | Pipe couplings |
| US20030062718A1 (en) | 2001-09-28 | 2003-04-03 | Central Sprinkler Corporation | Ferrous pipe couplings and prelubricated coupling gaskets |
| EP1623150A4 (en) | 2003-04-25 | 2008-12-24 | Victaulic Co Of America | TUBE COUPLING SEAL AND PIPE COUPLING WITH THIS SEAL |
| US7712796B2 (en) | 2004-05-14 | 2010-05-11 | Victaulic Company | Deformable mechanical pipe coupling |
| US7086131B2 (en) * | 2004-05-14 | 2006-08-08 | Victaulic Company | Deformable mechanical pipe coupling |
| US7726703B2 (en) | 2006-06-07 | 2010-06-01 | Victaulic Company | Deformable pipe coupling having multiple radii of curvature |
| CN200972022Y (zh) * | 2006-07-25 | 2007-11-07 | 黄竹磬 | 超高压管卡 |
| US7789434B2 (en) * | 2006-12-01 | 2010-09-07 | Victaulic Company | Coupling with concave bearing surface |
| WO2008154167A1 (en) | 2007-06-06 | 2008-12-18 | Pridgeon & Clay, Inc. | Pipe compression joint |
| US8646814B2 (en) | 2007-10-03 | 2014-02-11 | Anvil International Llc | Coupling gaskets and associated methods |
| US8069547B2 (en) | 2008-03-05 | 2011-12-06 | Victaulic Company | Installation-ready pipe coupling method of manufacture |
| US8282136B2 (en) * | 2008-06-30 | 2012-10-09 | Mueller International, Llc | Slip on groove coupling with multiple sealing gasket |
| US8038176B2 (en) | 2009-08-11 | 2011-10-18 | Victaulic Company | Seal with rigid stop ring |
| KR101811708B1 (ko) | 2009-10-27 | 2017-12-22 | 타이코 파이어 프로덕츠 엘피 | 파이프 커플링 장치를 위한 시스템 및 방법 |
| CN201858455U (zh) * | 2010-11-03 | 2011-06-08 | 林建屋 | 免拆卸沟槽式管接头 |
| US8556302B2 (en) | 2011-04-05 | 2013-10-15 | Victaulic Company | Pivoting pipe coupling having a movable gripping body |
| US9039046B2 (en) | 2012-01-20 | 2015-05-26 | Mueller International, Llc | Coupling with tongue and groove |
| JP2013210043A (ja) * | 2012-03-30 | 2013-10-10 | Riken Corp | ハウジング形管継手 |
| US10578234B2 (en) | 2013-05-02 | 2020-03-03 | Victaulic Company | Coupling having arcuate stiffness ribs |
| CN104006237A (zh) * | 2014-06-05 | 2014-08-27 | 浙江康帕斯流体输送技术有限公司 | 一种用于压缩空气管道连接装置的密封元件 |
| WO2016040102A1 (en) * | 2014-09-11 | 2016-03-17 | Victaulic Company | Coupling and seal |
| US10641419B2 (en) | 2016-12-14 | 2020-05-05 | Anvil International, Llc | Pipe coupling with closed ring |
| US11378208B2 (en) | 2016-12-14 | 2022-07-05 | ASC Engineered Solutions, LLC | Pipe couplings |
-
2018
- 2018-05-31 CA CA3065508A patent/CA3065508C/en active Active
- 2018-05-31 WO PCT/US2018/035388 patent/WO2018222867A1/en not_active Ceased
- 2018-05-31 AU AU2018278815A patent/AU2018278815B2/en active Active
- 2018-05-31 KR KR1020257006343A patent/KR20250034189A/ko active Pending
- 2018-05-31 EP EP18808831.4A patent/EP3631273A4/en not_active Withdrawn
- 2018-05-31 EP EP23181359.3A patent/EP4235003A3/en active Pending
- 2018-05-31 CN CN201880036065.8A patent/CN110662917B/zh active Active
- 2018-05-31 PE PE2024002367A patent/PE20250143A1/es unknown
- 2018-05-31 BR BR112019022062-3A patent/BR112019022062B1/pt not_active IP Right Cessation
- 2018-05-31 PE PE2019002474A patent/PE20200051A1/es unknown
- 2018-05-31 MX MX2019014389A patent/MX2019014389A/es unknown
- 2018-05-31 CA CA3176632A patent/CA3176632A1/en active Pending
- 2018-05-31 KR KR1020217025957A patent/KR20210104176A/ko not_active Ceased
- 2018-05-31 KR KR1020197038129A patent/KR20200010495A/ko not_active Ceased
- 2018-05-31 RU RU2019137428A patent/RU2733892C1/ru active
- 2018-05-31 KR KR1020237018905A patent/KR20230087614A/ko not_active Ceased
- 2018-05-31 JP JP2019566334A patent/JP6951475B2/ja active Active
- 2018-05-31 MY MYPI2019006161A patent/MY206293A/en unknown
- 2018-05-31 NZ NZ770487A patent/NZ770487A/en unknown
- 2018-05-31 US US15/994,299 patent/US11168816B2/en active Active
- 2018-06-01 TW TW107118995A patent/TWI723267B/zh active
-
2019
- 2019-10-22 ZA ZA2019/06942A patent/ZA201906942B/en unknown
- 2019-11-07 PH PH12019502507A patent/PH12019502507A1/en unknown
- 2019-11-12 SA SA519410541A patent/SA519410541B1/ar unknown
- 2019-11-25 CO CONC2019/0013093A patent/CO2019013093A2/es unknown
- 2019-11-28 CL CL2019003493A patent/CL2019003493A1/es unknown
- 2019-11-29 MX MX2023009972A patent/MX2023009972A/es unknown
- 2019-11-29 MX MX2023014690A patent/MX2023014690A/es unknown
-
2020
- 2020-07-15 CL CL2020001878A patent/CL2020001878A1/es unknown
- 2020-12-17 AU AU2020289814A patent/AU2020289814B2/en active Active
-
2021
- 2021-07-07 JP JP2021112833A patent/JP2021181831A/ja not_active Withdrawn
- 2021-08-04 CL CL2021002061A patent/CL2021002061A1/es unknown
- 2021-10-11 US US17/498,309 patent/US11739867B2/en active Active
-
2023
- 2023-01-12 US US18/096,135 patent/US11835159B2/en active Active
-
2024
- 2024-01-22 ZA ZA2024/00737A patent/ZA202400737B/en unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CL2019003493A1 (es) | Acoplamiento teniendo un sello con pata central de retracción. | |
| PE20181936A1 (es) | Acoplamiento que tiene retenedor con pestanas | |
| MX2020003659A (es) | Sistemas y metodos para sellar un pozo. | |
| CL2018001743A1 (es) | Acople adaptador. | |
| CL2019002091A1 (es) | Acoplamiento mecanico para tuberia mecanica y estructural. | |
| MX2018003314A (es) | Valvula y acoplamiento. | |
| MX2017003048A (es) | Acoplamiento y sello. | |
| PE20180914A1 (es) | Acoplamiento de la valvula que tiene proyecciones de soporte de centrado | |
| CO2018005809A2 (es) | Sello con proyecciones de borde | |
| PE20160963A1 (es) | Junta de espiga y casquillo de tuberia, metodo de instalacion y desmontaje de la misma, dispositivo de instalacion y herramienta de desmontaje | |
| CO2021008161A2 (es) | Ménsula reversible | |
| CO2018006705A2 (es) | Elemento de tubería que tiene ranura de acuñamiento | |
| CL2014003360A1 (es) | Sello para conectar entre una descarga de accesorio de plomeria y una salida de tuberia de drenaje porque comprende una manga, un elemento de sellado acoplado a un extremo de la manga, al menos un anillo dispuesto de manera circunferencial alrededor de la manga; un ensamble de sellado de sanitario; metodo para sellado. | |
| BR112018014116A2 (pt) | aparato de vedação e método para vedar um espaço anular | |
| MX340737B (es) | Aparato. | |
| MX2017013965A (es) | Luminaria de acento direccional. | |
| AR101948A1 (es) | Conexión multilateral con aislamiento de pozo utilizando componentes de aislamiento degradables | |
| MX387850B (es) | Un procedimiento y un dispositivo de sellado entre un par de bridas para tubo conectables | |
| MX2019012031A (es) | Conjunto de acoplamiento magnetico. | |
| CL2016001132A1 (es) | Método y sistema para la hermeticidad del horno | |
| MX2016009511A (es) | Junta roscada para tubo. | |
| BR112017001133A2 (pt) | conjuntos de cabeça de poço e método para formar uma vedação | |
| AR100948A1 (es) | Acople rápido para caños | |
| AR081102A1 (es) | Cierre hermetico a presion de medio giro | |
| AR114706A1 (es) | Conjuntos de tapón para un pozo subterráneo |