Title:
BURIED PIPING STRUCTURE OF SYNTHETIC RESIN PIPE AND ITS PIPE JOINT
Document Type and Number:
Japanese Patent JPH1194130
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To heighten earthquake resistance and supply a large capacity of flow by providing two saddle type branch pipe joints at a specified distance on the outer peripheral surface of a main pipe, and communicating the branch takeoff ports of the respective branch pipe joints through a different diameter T-shape pipe joint in piping structure of a synthetic resin pipe piped underground. SOLUTION: Two saddle type branch pipe joints 20 are disposed at a specified distance on the outer peripheral surface of a main pipe 10 made of polyethylene and piped in an underground excavated hole 11, and these branch pipe joints 20 are connected to the main pipe 10 by electric fusion by applying a current to each connector 20a through a cable. Each branch pipe joint has a boring cutter built in a through hole of a joint body 21 so as to be able to bore the main pipe 10 after electric fusion connection. After boring, a cap 23 is thread-fastened to the joint body 21 through an O-ring to keep airtightness. Branch takeoff ports 22 of the right and left branch pipe joints 20 are connected and communicated by an electric-fusion-welded type T-shape pipe joint 24.
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Inventors:
INAGAKI MITSUSACHI
MIZUTANI SHIGERU
MIZUTANI SHIGERU
Application Number:
JP26005397A
Publication Date:
April 09, 1999
Filing Date:
September 25, 1997
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
F16L1/024; F16L39/00; F16L41/04; (IPC1-7): F16L1/024; F16L39/00; F16L41/04
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