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Q671F pneumatic valve on the folder
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Q671F pneumatic valve on the folder
Description:

氣動對夾球閥 Q671F

Q671球閥是引進意大利技術進行國產化設計而發展出的新一代超短法蘭距球閥,球芯通道形狀有矩形、V形及O形。該系列產品具有結構緊湊、體積小、重量輕、安裝方便等特點,可廣泛應用在石油、化工、冶金、電站、輕工等領域,對油、水、氣及紙漿或纖維狀流體進行自動調節或切斷控制。

   Q671氣動球閥由氣動雙活塞齒輪齒條執行器和超短法蘭距球閥組合而成,閥體部分同“1”電動球閥閥體一樣。
氣動活塞執行機構分有彈簧式和無彈簧式兩種。故障下要求閥全開或關閉時配有彈簧式(靠彈簧的恢復張力復位),故障下要求保位時,配無彈簧式。它主要由缸體、彈簧、活塞、活塞桿、前后缸蓋、齒條、輸出軸等零部件組成。對兩位開關閥,需配電磁閥以及行程開關等;對比例式調節閥,需配定位器。

 閥(fa)(fa)體采用(yong)整體式(shi)結(jie)構。通過精(jing)密的(de)加工和裝(zhuang)配(pei),球芯由一(yi)端裝(zhuang)入后,旋緊壓環(huan)(huan),使(shi)兩軟密封(feng)閥(fa)(fa)座與(yu)球芯保持良(liang)好的(de)接(jie)觸和密封(feng)。同時,壓環(huan)(huan)內墊也實現良(liang)好的(de)密封(feng),使(shi)閥(fa)(fa)門(men)工作的(de)泄漏為零(ling)。由于采用(yong)整體式(shi)結(jie)構的(de)閥(fa)(fa)體,所以該閥(fa)(fa)實現了(le)超短法蘭距,整機重(zhong)量大大降低,僅為同類普通球閥(fa)(fa)的(de)50%左右。

 

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