Title:
腐食性液体を入れる金属管のねじ接続部
Document Type and Number:
Japanese Patent JP3866514
Kind Code:
B2
Abstract:
An integral or threaded and coupled connection between two metal pipes which are provided with an internal coating to contain a corrosive fluid. The male part of the connection includes a threaded portion and a non-threaded portion with the non-threaded portion having a metal sealing surface, an annular transverse bearing surface and a nose surface. The nose surface joins the internal peripheral surface of the pipe by way of an annular radial surface termed the internal end. The female part contains corresponding elements. A sealing ring is interposed between the annular internal end surfaces to prevent the liquid phase from penetrating into the connection. Male metal sealing surfaces are provided between the treaded portion and the bearing surface. A clearance is provided between the external peripheral surface of the nose and the facing internal reinforcing peripheral surface on the female part.
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Inventors:
Duchill and Pierre
Noel, cherry
Noel, cherry
Application Number:
JP2000538117A
Publication Date:
January 10, 2007
Filing Date:
March 19, 1999
Export Citation:
Assignee:
Ballorec Manesmann Oil and Gas France
SUMITOMO METAL INDUSTRIES,LTD.
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
E21B17/08; E21B17/00; E21B17/042; F16L15/04; F16L58/18
Domestic Patent References:
| JP9053768A | ||||
| JP3003833B2 | ||||
| JP62098088A | ||||
| JP58142475U |
Foreign References:
| FR1486508B1 |
Attorney, Agent or Firm:
Yuzo Yamazaki
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Kiko Okada
Naomi Mae
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Kiko Okada
Naomi Mae