| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermal steam trap in which a first diaphragm and a second diaphragm can open a first lead-out passage and a second lead-out passage, respectively. <P>SOLUTION: There are formed a valve chamber 3 which communicates with inlets 4, 4 at valve casings 1, 2, and an outlet 5 which communicates with the valve chamber 3 via a first lead-out passage 8 small in opening area and a second lead-out passage 10 large in opening area, an expansion medium 16 is sealed into an internal space between the first diaphragm 14 and the second diaphragm 15, a temperature control machine element 12 in which a stopper member 21 for regulating displacement not smaller than a prescribed value to valve opening directions of the first diaphragm 14 opened with the first lead-out passage 8 and the second diaphragm 15 opened with the second lead-out passage 10 is arranged in the internal space between the first diaphragm 14 and the second diaphragm 15 is arranged between the first lead-out passage 8 and the second lead-out passage 10, and the first lead-out passage 8 and the second lead-out passage 10 are opened and closed by the displacement of the first diaphragm 14 and the second diaphragm 15 caused by the expansion and contraction of the expansion medium 16. <P>COPYRIGHT: (C)2012,JPO&INPIT |
