球閥(fa)的(de)(de)(de)執(zhi)行(xing)器(qi)(qi)分(fen)為氣動(dong)(dong)執(zhi)行(xing)器(qi)(qi)和電(dian)動(dong)(dong)執(zhi)行(xing)器(qi)(qi)2大類，氣動(dong)(dong)執(zhi)行(xing)器(qi)(qi)是以(yi)壓縮氣源為驅動(dong)(dong)力，配(pei)合(he)閥(fa)門定(ding)位器(qi)(qi)的(de)(de)(de)控制(zhi)，實(shi)現(xian)對閥(fa)門全行(xing)程(cheng)的(de)(de)(de)調節效果，若配(pei)以(yi)電(dian)磁閥(fa)和限位開關則實(shi)現(xian)對閥(fa)門的(de)(de)(de)快速(su)開閉效果。 電(dian)動(dong)(dong)執(zhi)行(xing)器(qi)(qi)是以(yi)伺服電(dian)機(ji)為驅動(dong)(dong)源，受控于(yu)4-20mA或ON-OFF信號，實(shi)現(xian)去閥(fa)門全行(xing)程(cheng)的(de)(de)(de)控制(zhi)。常用(yong)的(de)(de)(de)有AT型(xing)氣缸(gang),AW型(xing)氣缸(gang),CHV電(dian)動(dong)(dong)執(zhi)行(xing)器(qi)(qi),CHQ防(fang)爆電(dian)動(dong)(dong)執(zhi)行(xing)器(qi)(qi)等。
附件(jian)有閥(fa)門定位器,電(dian)磁閥(fa),氣源三聯件(jian),行(xing)程限位開關,保位閥(fa)等(deng)，以實現對球(qiu)閥(fa)的(de)控(kong)制和信號的(de)反(fan)饋。
