球閥(fa)的(de)執(zhi)(zhi)行(xing)器(qi)(qi)(qi)分(fen)為氣動執(zhi)(zhi)行(xing)器(qi)(qi)(qi)和電動執(zhi)(zhi)行(xing)器(qi)(qi)(qi)2大類(lei),氣動執(zhi)(zhi)行(xing)器(qi)(qi)(qi)是以(yi)壓縮氣源為驅(qu)動力,配合閥(fa)門(men)定位器(qi)(qi)(qi)的(de)控(kong)制(zhi),實現對閥(fa)門(men)全行(xing)程的(de)調節效(xiao)果,若(ruo)配以(yi)電磁閥(fa)和限位開關(guan)則(ze)實現對閥(fa)門(men)的(de)快速開閉效(xiao)果。 電動執(zhi)(zhi)行(xing)器(qi)(qi)(qi)是以(yi)伺服電機為驅(qu)動源,受(shou)控(kong)于4-20mA或ON-OFF信號,實現去閥(fa)門(men)全行(xing)程的(de)控(kong)制(zhi)。常(chang)用的(de)有AT型氣缸,AW型氣缸,CHV電動執(zhi)(zhi)行(xing)器(qi)(qi)(qi),CHQ防爆電動執(zhi)(zhi)行(xing)器(qi)(qi)(qi)等。
附件有閥門定位(wei)器(qi),電磁(ci)閥,氣源三聯件,行(xing)程限位(wei)開(kai)關,保位(wei)閥等,以實現對球閥的控(kong)制和信號的反(fan)饋。