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QAW series part-turn valve actuator has five types, respectively for QA1, QA2, QA3, QA4 and QA5.The product has the characteristics of compact structure,reliable performance and convenient adjustment.The series valve actuator attachments are used as the valve for partial turn motion in valve flap, such as butterfly valve, ball valve, damper etc.They are the important elements in the control of industry pipeline system. They are widely applied to power station,petroleum,chemical and metallurgical industries.