E-MAIL: sales@nssteel.co.th, info@nssteel.co.th
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หัวขับวาล์วไฟฟ้า EXC Series

Electric motor operated quarter turn actuator for 1/4 turn valves.        
High durability planetary gear with self locking function.          
High resolution control (1/200 electric range ability)          
Liniality +/- 1.0% F.S. (without load condition).            
Hysteresis Min +/- 0.5% F.S. (Adjustable).            
Precise potentiometer with non back lash gear. (1K Ohm)          
Action on process signal failure (selectable).            
Fully Open / Hold current position / Fully Close.            
Manual override with interlocking switch for safety opeartion.          
No voltage position feed back switches.            
Terminal box.                
ISO 5211 bottom mount.