DIAPHRAGM VALVE

To provide a diaphragm valve that can detect an abnormality at an early stage while using, as a diaphragm, a conventional diaphragm as it is.SOLUTION: A weir 3 as a valve seat is provided between a fluid inflow passage 2a and a fluid outflow passage 2b. A seal line 4a that contacts the weir 3 is pro...

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Bibliographische Detailangaben
Hauptverfasser:	YAKUSHIJIN TADAYUKI, HACHIMAN SOTA, ISHIBASHI KEISUKE, OBARA TOSHIHARU, KOBAYASHI KEIGO, HORIKAWA YUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	To provide a diaphragm valve that can detect an abnormality at an early stage while using, as a diaphragm, a conventional diaphragm as it is.SOLUTION: A weir 3 as a valve seat is provided between a fluid inflow passage 2a and a fluid outflow passage 2b. A seal line 4a that contacts the weir 3 is provided at the center part of a diaphragm 4. On an upper surface 3a of the weir 3 that a seal line 4a of the diaphragm 4 contacts, a strip-shaped surface pressure sensor 12 having a width wider than the width of the seal line 4a is provided over the entire length of the seal line 4a.SELECTED DRAWING: Figure 2 【課題】ダイヤフラムとしては、従来のものをそのまま使用し、なおかつ、異常を早期に検知することができるダイヤフラム弁を提供する。【解決手段】弁座とされるせき３が流体流入通路２ａと流体流出通路２ｂとの間に設けられている。ダイヤフラム４の中央部に、せき３に当接するシールライン４ａが設けられている。ダイヤフラム４のシールライン４ａが当接するせき３の上面３ａに、シールライン４ａの幅よりも広い幅を有する帯状の面圧センサ１２がシールライン４ａの全長に亘って設けられている。【選択図】図２