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Title:
HEAT RESPONDING STEAM TRAP
Document Type and Number:
Japanese Patent JP2013024272
Kind Code:
A
Abstract:

To extend the service life of a diaphragm of a heat responding steam trap.

A first diaphragm 14 is formed in a wavy shape having a plurality of annular protrusions 21 in a concentric circle shape. A second diaphragm 18 is also formed in a wavy shape having a plurality of annular protrusions 22 in a concentric circle shape along the annular protrusions 21 of the first diaphragm 14. An upper surface of a lower wall member 19, to which a lower surface of the second diaphragm 18 abuts when an expansion medium 15 is expanded, is also formed in a shape having a wavy shape part 23 in a concentric circle shape which is the same with or approximates a lower surface of the second diaphragm 18 so as to follow the wavy shape of the lower surface of the second diaphragm 18. The lower surface of an upper wall member 11, to which the upper surface of the first diaphragm 14 abuts when the expansion medium 15 is contracted, is also formed in a shape having a wavy shape part 24 in a concentric circle shape which is the same with or approximates the upper surface of the first diaphragm 14 so as to follow the wavy shape of the upper surface of the first diaphragm 14.


Inventors:
NISHIMURA SUKETAKA
Application Number:
JP2011157344A
Publication Date:
February 04, 2013
Filing Date:
July 19, 2011
Export Citation:
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Assignee:
TLV CO LTD
International Classes:
F16T1/10; F16T1/14
Domestic Patent References:
JPH0828786A1996-02-02
JPH06300187A1994-10-28
JP2010266012A2010-11-25
JP2000193347A2000-07-14



 
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