Title:
SEAL STRUCTURE OF RESINOUS VALVE
Document Type and Number:
Japanese Patent JP3527303
Kind Code:
B2
Abstract:
PURPOSE: To provide the seal structure of a resinous valve which can retain excellent seal effect even when the valve is used for a long period of time under such environment that a temperature is high and a temperature change is extensive.
CONSTITUTION: A bolt insert hole 15 in which a bolt head part arranging seat surface 15a is separated from the outer end thereof and positioned in the vicinity of a joint surface 19, is formed in either one of a valve chamber side valve body 13 or an operation side valve body 14, and a nut arranging seat surface 17a or a tap is formed in the vicinity of the joint surface 19 while being separated from the outer end of the bolt insert hole 15 in the other valve body. Afterwards, a bolt 16 inserted in the bolt insert hole 15 is threadedly engaged with the nut 18 of the nut arranging seat surface 17a or the tap.
Inventors:
Izumo, Hideji
Matsuzawa, Hironobu
Matsuzawa, Hironobu
Application Number:
JP32367994A
Publication Date:
May 17, 2004
Filing Date:
November 30, 1994
Export Citation:
Assignee:
ADVANCE DENKI KOGYO KK
International Classes:
F16K7/12; (IPC1-7): F16K7/12
Attorney, Agent or Firm:
後藤 憲秋 （外１名）