JOINT INCLUDING CONNECTION SURFACE, PIPE INCLUDING PIPE JOINT, AND PIPING STRUCTURE INCLUDING SAME

Title:

JOINT INCLUDING CONNECTION SURFACE, PIPE INCLUDING PIPE JOINT, AND PIPING STRUCTURE INCLUDING SAME

Document Type and Number:

WIPO Patent Application WO/2013/111748

Kind Code:

A1

Abstract:

An object of the present invention is to not store contamination in a pipe including a pipe joint constituting piping and a joint including a connection surface. The joint is inserted into an end portion of the pipe constituting the piping. A connection hole of the joint and an inner surface of the end portion of the pipe are welded with each other. The pipe includes the joint that has a structure in which an outer circumference of the pipe and the joint are welded with each other. The joint includes the connection surface that is a main body which includes the connection surface to which the joint of the pipe can be connected. Using the pipe and the joint, the piping is formed by a bolt connection of the joint of the pipe with the connection surface of the joint. The piping is configured to have no gap or recess so that an inner surface thereof is smoothened.

Inventors:

UENISHI YUKIO (JP)
KONDO YUJI (JP)

Application Number:

PCT/JP2013/051194

Publication Date:

August 01, 2013

Filing Date:

January 22, 2013

Export Citation:

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Assignee:

U TEC CO LTD (JP)

International Classes:

F16L23/024; F16L23/026; F16L23/028; F16L43/00

Domestic Patent References:

WO2010137138A1

2010-12-02

Foreign References:

JPS61206187U	1986-12-26
JPS62179486U	1987-11-14
JPS5836688U	1983-03-10
JPS6330686A	1988-02-09
JPH07103374A	1995-04-18

Other References: