门阀杆连接部该系列是一款90°部分回转手动驱动装置。适用于球阀、蝶阀、旋塞阀等阀门。箱体采用精密铸造，样式新颖，外形美观。采用蜗轮蜗杆传动，蜗轮副自锁，使用圆锥滚子承轴，传动更加灵活，效率高。蜗轮与阀分由实体和内置螺母两款供客户选择，法兰全部采用ISO5211标准，与阀门配套更加方便。防护等级为IP65.特殊环境还可做到IP68.
            It is quarter turn gear actuator, suit to be used on ball valves,butterfly valves,plug valves etc.The housing made by precise casting, ａnd the gear boxes have fresh pattern ａnd nice appearance.It transmitted by worm gear ａnd worm, ａnd the worm gear with self-locking,also by using tapered roller bearing, the gear box can be operated more flexibly ａnd have higher efficience.Stem nut can be uni-body or separated just according to customers＇ requirement.The mounting flange adapts to I.S.O.5211.The Protection grade can be IP65, for some special environment, it also can be IP68
        
        e.型号大小：MY-4S~MY-9S共6个尺寸供选择，扭矩范围8000NM~10000Nm.