The ZDHW series electric regulating butterfly valves are the actuating units within the DDZ series electric unit combination instrument system.

The electric regulating butterfly valve converts standard signals from the control instrument or manual control signals from a D-type operator into angular displacement of the valve disc. This enables continuous regulation of process parameters for fluids in the production pipeline, or opening and closing of the valve to control fluid flow.

The electric regulating butterfly valve features fast response, simple structure, convenient maintenance, large port size, light weight, small leakage (referring to the low-leakage ZAJWa type), rapid signal transmission, and long transmission distance. It is widely used in automatic process regulation or remote control systems in industrial sectors such as metallurgy, petroleum, chemical, and power plants.