Electric Quarter Turn Rotary Actuator for Butterfly Valve
The shell is made of horniness auminium alloy, pass through anodic oxidation treatment and polyester powder coating, so it has strong corrosion resistance. Protection grade is IP67,NEMA4 AND 6, and optional IP68 type.
2. Electric Machinery
Fully enclosed Squirrel-cage electric Machinery, small volume, large torque, and small inertia force, F-class insulation rating, Inside hot protection switch, avoid damaging the electric machinery.
3. Manual Structure
The design of handle ensure safe, reliable, labor-saving, small volume. When it don’t have electricity, it can be manually operated by handle. When you don't operate by manus, you can put the wrench in the wrench folder, then you can use it.
Indicator installes in the center axis, so it can observes the valve position. It adopts convex mirror design, no cumulate water, more convenient to observe.
It is used for control temperature, avoiding internal moisture of electric actuator condensed because of the changing of temperature and weather,keep inner electric device dry.
Good sealing performance, and the protection class of standard product is IP67, and optional IP68 protection grade.
7. Limit switch
Mechanical, electronic double limit. Mechanical limit screw is adjustable, safe and reliable; electron limit switch is controlled by the cam mechanism, easy adjustment institutions can set the position accurately and conveniently, and it doesn’t affect overly by handwheel.