The newly designed pressure regulating valve group is composed of automatic regulating butterfly valve and common pipe. In use, one ZAJW-21type automatic regulating butterfly DDZ type electric unit combination instrument is generally used for automatic control, while the other two (or three) zajw- 21 automatic regulating butterfly valves are rough adjusted by the electric actuator equipped with the valve through the manual operator control on the dashboard in order to adjust the flow and pressure of the system.
The DYFZ-21 pressure regulating valve group is suitable for smelting blast furnace system and other systems that need to maintain stable production through flow and pressure regulation.
There is no direction requirement when the valve group is installed on the horizontal pipe, but the normal pipe should be placed in the discharge of condensate water from the valve group. The working position of the electric actuator should be considered when installing on the vertical line.