Thermally-actuated steam trap
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United States of America Patent
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-
Apr 11, 1995
Grant Date -
N/A
app pub date -
Apr 29, 1994
filing date -
May 14, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A thermally-actuated steam trap, which performs the opening and closing operations of a valve according to a change in the volume of an expansible medium, comprises at least two diaphragms and a valve member fitted to the lower diaphragm. The lower diaphragm is shaped so that it comes to be more sensitive to a change in pressure than the upper diaphragm, to provide a steam trap which permits a discharge passage to be opened also when the fluid pressure at the inlet side is relatively week, and which is stable in operation from the initial stage as the opening and closing operations of the valve are performed intermittently.
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