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電(dian)(dian)動調節(jie)閥(fa)的(de)電(dian)(dian)動執行(xing)(xing)器(qi)有方、圓兩種形式(shi)。方形電(dian)(dian)動執行(xing)(xing)器(qi)，可以(yi)手(shou)動脫開電(dian)(dian)機齒輪，進行(xing)(xing)手(shou)動調節(jie)；而圓形電(dian)(dian)動執行(xing)(xing)器(qi)不可以(yi)。圓形電(dian)(dian)動執行(xing)(xing)器(qi)運轉較平穩(wen)可輸出反饋電(dian)(dian)信號與自(zi)動控制(zhi)系統聯(lian)鎖。