AW气动执行器分为双作用式和单作用式（弹簧复位），两个分体气缸，输出扭矩大，动作灵活平衡；活塞杆镀硬铬，有很好的搞磨性；所有滑动部件之间均有无油润滑轴承和导向环以降低摩擦系数，延长使用寿命，AW气动执行器的U型曲线特性输出扭矩更适用于大口径球阀、蝶阀。
AW pneumatic actuator has two types,double acting and single acting(spring reset),two divided cylinder,with large output touque,flexible and balance.The piston rod is plated with hard chromium with good abrasion resistance. All sliding members are equipped with nonoil lubricant bearing and guiding ring si as to reduce the friction coefficient and proling service life. The U curve ouput torque of AW pneumatic actuator shows that it is more suitable for ball valve and butterfly valve with large caliber.