BLOCK DEVICE AND METHOD FOR REMOVING PIPE CONNECTION MEMBER WITH BLOCK DEVICE

Japanese Patent JP2017101703

A

PROBLEM TO BE SOLVED: To provide a block device and a method for removing a pipe connection member using the block device in which hydraulic pressures acting on the block device can be uniformly supported even when the block device blocking a branch port under a tight-sealed state is inserted against the branch port while being inclined and further inspection and cleaning of a flange part can be carried out under a state in which a working case is removed from the flange part of an existing fluid pipe.SOLUTION: This invention relates to a block device 10 in which a pipe connecting member connected to a flange part arranged around a branch port of an existing fluid pipe is enclosed by a working case under a tight-sealed state and the branch port from which the pipe connecting member is removed under non-interrupted flow state within the working case. There are provided a block body 11 for blocking the branch port; a tight-seal member 13 for tight sealing the block body 11 and the branch port; and a connector body 12 arranged at the block body 11. The connector body 12 is connected with an existing fluid pipe outside the branch port.SELECTED DRAWING: Figure 1

SAWADA MINORU

JP2015233235A

June 08, 2017

November 30, 2015

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COSMO KOKI CO LTD

F16L55/10; F16L55/00

JP2014029194A	2014-02-13
JP2015132270A	2015-07-23
JPH0632894U	1994-04-28
JP2015143562A	2015-08-06
JP2014109325A	2014-06-12
JP2013007232A	2013-01-10
JPH1026237A	1998-01-27

Kazuo Shigenobu
Ryoichi Mizobuchi
Yoshifumi Ishikawa
Hideki Akiba
Taeko Katata
Michihiro Hayashi
Yasushi Amasaka

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