WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018185529) SEALING ASSEMBLY FOR AN INDUSTRIAL GATE VALVE AND VALVE COMPRISING SUCH SEALING ASSEMBLY
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/185529 International Application No.: PCT/IB2017/052016
Publication Date: 11.10.2018 International Filing Date: 07.04.2017
IPC:
F16K 3/02 (2006.01) ,F16J 15/34 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
K
VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
3
Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
02
with flat sealing faces; Packings therefor
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
16
between relatively-moving surfaces
34
with slip-ring pressed against a more or less radial face on one member
Applicants: GASKET INTERNATIONAL S.R.L.[IT/IT]; Via B. Colleoni, 5/C 24060 Cividino di Castelli Calepio, IT
Inventors: SCATTINI, Roberto; IT
Agent: DE BORTOLI, Tiziano; IT
GERVASI, Gemma; IT
PALLINI GERVASI, Diego; IT
APPOLONI, Romano; IT
CATTANEO, Elisabetta; IT
PALLADINO, Massimo; IT
VALENZA, Silvia; IT
ZACCARO, Elisabetta; IT
BRIGHENTI, Livio; IT
COPPO, Alessandro; IT
CELONA, Antonio; IT
SAVI, Massimiliano; IT
TORTI, Carlo Maria Emilio; IT
CINQUANTINI, Bruno; IT
Priority Data:
Title (EN) SEALING ASSEMBLY FOR AN INDUSTRIAL GATE VALVE AND VALVE COMPRISING SUCH SEALING ASSEMBLY
(FR) ENSEMBLE D'ÉTANCHÉITÉ POUR ROBINET-VANNE INDUSTRIEL ET VANNE COMPRENANT UN TEL ENSEMBLE D'ÉTANCHÉITÉ
Abstract:
(EN) The present invention relates to industrial gate type sealing valves for low and high pressure. In particular, the present invention relates to a sealing assembly and to a gate valve comprising such an improved sealing assembly. The sealing assembly ensures excellent sealing performance at low and high pressures by exclusively using thermoplastic material sealing elements, completely eliminating the drawbacks which afflict the sealing systems of known type, in particular in relation to the reliability of the sealing elements made of elastomeric material. The sealing assembly comprises one seat (30) insertable in said valve body and defining an axial cavity (6) for the passage of a pressurized fluid, said seat defines a main housing at a front surface (30A), a first sealing element (3), made of thermoplastic material, being accommodated with interference in a first portion of said main housing, a second sealing element (4), made of thermoplastic material, which is accommodated within a second portion of said main housing axially delimited by a closed bottom surface (52) and radially delimited between a outermost surface of said main housing and said first sealing element, wherein said second element is accommodated with radial clearance in said second housing portion to be floating, with respect to said seat, along a direction parallel to said central axis when said seat is installed in said valve body and when said seat is internally crossed by said pressurized fluid.
(FR) La présente invention concerne des vannes d'étanchéité de type robinet industriel pour basse et haute pression. En particulier, la présente invention concerne un ensemble d'étanchéité, et un robinet-vanne comportant un tel ensemble d'étanchéité amélioré. L'ensemble d'étanchéité assure une excellente performance d'étanchéité à basses et hautes pressions en utilisant exclusivement des éléments d'étanchéité en matériau thermoplastique, éliminant ainsi complètement les inconvénients qui affectent les systèmes d'étanchéité de types connus, en particulier quant à la fiabilité des éléments d'étanchéité en matériau élastomère. L'ensemble d'étanchéité comprend un siège (30) pouvant être inséré dans ledit corps de vanne et délimitant une cavité axiale (6) pour permettre le passage d'un fluide sous pression, ledit siège délimitant un logement principal au niveau d'une surface avant (30A), un premier élément d'étanchéité (3), en matériau thermoplastique, étant logé avec une interférence dans une première partie dudit boîtier principal, un second élément d'étanchéité (4), en matériau thermoplastique, qui est logé à l'intérieur d'une seconde partie dudit boîtier principal délimitée axialement par une surface inférieure fermée (52) et délimité radialement entre une surface la plus à l'extérieur dudit boîtier principal et ledit premier élément d'étanchéité, ledit second élément étant logé avec un jeu radial dans ladite seconde partie de boîtier de manière à flotter, par rapport audit siège, le long d'une direction parallèle audit axe central lorsque ledit siège est installé dans ledit corps de vanne et lorsque ledit siège est traversé intérieurement par ledit fluide sous pression.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Italian (IT)