Descripción del producto

QT quarter turn electric actuators are outdoor type with protection grade of IP *7. Basic type of the series QT quarter –turn electric actuators are outdoor type with protection grade of IP *7(for higher protection grade, please specify in ordering).The product can also be made into explosion-proof type, but user should specify in ordering. Base technical parameters and structure size of flange are in the same as that shown in this catalogue. For type , specification , structure model, explosion-proof grade and performance and so on please see our catalogue of the explosion-proof type product. Base Features 1. The case is processed by means of aluminum die-casting technology and precision machining technique 2. Light weight and small size, outer surface is treated through flame plating technique to give an excellent appearance 3. Easy to adjust the end position of stroke control and set torque switch and reliable on control 4. High accuracy of driving medium, ball bearings are fitted at all rotating positions, high efficiency of whole machine and negligible noise 5. Driving of the output shaft is carried out through worm gear and can be self –locked at any position 6. There is a mechanical adjustable stop for valve end position control 7. The manual/electric declutch is of semi –automation and electric-priority to ensure safe and reliable operation 8. Possessing ideal outdoor performance 9. Various flange connection models, there is a valve stem adapter in the inner of output shaft, easy to mount and dismount Selected Function 1.4~*0Ma DC valve position feedback signal 2. Increasing electric block with automatic adjusting function 3 .Increasing limit switch to give passive control contacts 4. Performing integral control, possessing local/remote-control shifting function and opening, closing and stop at local control functions 5 .Fitted with space heater in the inner of electri