For the control valve, ball valves, plug valves, and so do 90 ° rotation of the valve. The product substitution products with the specifications of the QB, small size, light weight,high efficiency, high reliability, high protection performance, low noise and so on.

Field operations can also be remote control. Can be widely used in petroleum, chemical, power plants, water treatment, paper and other industries. Degree of protection of the product IP67, explosion-proof products （models with EX） of the explosive grade dIIBT4. This manual applies to ordinary products, if other specialfeatures, will provide you with the appropriate "additional instructions. "