Title:
DIAPHRAGM VALVE STRUCTURE AND MULTI-PROTECTION VALVE WITH THE VALVE STRUCTURE
Document Type and Number:
Japanese Patent JP2008101717
Kind Code:
A
Abstract:
To prevent a bypass passage from being narrowed and secure function effectiveness of the bypass passage.
In this diaphragm valve structure 2, a plate member 71 comprising a harder material at least compared to a diaphragm 35 is arranged between the diaphragm 35 and a valve element 11. The plate member 71 can be provided with a projection part 73 for preventing positional shift between the diaphragm 35 and a spring receiving member 29 and other parts.
Inventors:
TAGAWA TOMOSHI
Application Number:
JP2006285482A
Publication Date:
May 01, 2008
Filing Date:
October 19, 2006
Export Citation:
Assignee:
NABTESCO CORP
International Classes:
F16K15/14
Domestic Patent References:
JP2006168393A | 2006-06-29 | |||
JP2005090524A | 2005-04-07 |
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