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Patent Searching and Data


Title:
AN ASSEMBLY OF AN END-FITTING AND AN UNBONDED FLEXIBLE PIPE
Document Type and Number:
WIPO Patent Application WO/2019/137591
Kind Code:
A1
Abstract:
The present invention relates to an assembly of an end-fitting and an unbonded flexible pipe, where the unbonded flexible pipe comprises from the inside and out an internal pressure sheath, at least one armor layer and an outer sheath, the end-fitting further comprises sealing means. The sealing means comprises a seal casing (30) concentrically arranged around the internal pressure sheath (11), the seal casing (30) comprises a recess (31) in which a first sealing element (41) is concentrically arranged around the internal pressure sheath (11) such that the surface of the first sealing element (41) at least forms a line contact with the internal pressure sheath (11), and a second sealing element (42) is concentrically arranged around the internal pressure sheath (11) in said recess (31) such that the surface of the second sealing element (42) at least form a line contact with the surface of the seal casing (30) and form a line contact with the surface of the first sealing element (41) and wherein the Shore D hardness of the first sealing element (41) is in the range of 40 to 70 when measured according to ASTM 2240; and the Shore A hardness of the second sealing element (42) is in the range of 80 IRHD to 100 IRHD when measured according to ISO 48N.

Inventors:
RIES, Jesper (2605 Brøndby, 2605, DK)
HALSTEEN, Martin (2605 Brøndby, 2605, DK)
ROBOCK, Lars (2605 Brøndby, 2605, DK)
BØGELUND, Bo (Fabriksvej 17, 3000 Helsingør, DK)
Application Number:
DK2019/050009
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
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Assignee:
NATIONAL OILWELL VARCO DENMARK I/S (Priorparken 480, Brøndby, DK-2605, DK)
International Classes:
F16L33/01; F16L33/00
Domestic Patent References:
WO1999019656A11999-04-22
WO2017140321A12017-08-24
Foreign References:
US20040036280A12004-02-26
FR2210269A51974-07-05
Attorney, Agent or Firm:
HEGNER & PARTNERS A/S (Symbion Science Park, Fruebjergvej 3, 2100 Copenhagen Ø, 2100, DK)
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