QT Sereis valve actuators is the latest development of the new generation products. Suitable for control butterfly valves, ball valves, plug valves, and so do the 90° rotaly valve. The product box with die-cast aluminum, beautiful appearance, small size, light weight, high efficiency, high reliability, high protection performance, low noise characteristics. Field operations as well as remotely controlled.It can be widely used in petroleum, chemical, power plants,water treatment, paper and other industries.There are explosion-proof products, the overall pattern, the overall adjustment type and other types. This product has protection class IP67,explosion proof grade products for the dII BT4