Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AUTOMATIC VALVE DEVICE
Document Type and Number:
Japanese Patent JP2009011693
Kind Code:
A
Abstract:

To provide an automatic valve device capable of reducing a construction cost by disposing peripheral devices and instrument piping whose width-directional maximum dimensions become the outermost diameter of the automatic valve and shallowing the cutting depth of a tunnel wall face for securing a device storage space.

An initial water-discharge pressure control valve 200, a pressure-regulating valve 400, a pilot valve 18, an operation handle 26, a drainage unit 500, a first pipe 50, a second pipe 52 and a third pipe 53 are disposed within a range of the outer diameter of a gate valve mounting flange 27 in the direction orthogonally crossing with an approaching/separating direction of a trunk part axis relative to a main valve.


Inventors:
Nakagawa, Haruyasu
Application Number:
JP2007000179300
Publication Date:
January 22, 2009
Filing Date:
July 09, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NOHMI BOSAI LTD
International Classes:
A62C35/68; A62C3/00; A62C37/36