Product overview

Manual (electric) butterfly type cold air release valve is composed of valve body, butterfly plate, connecting rod, muffler, exhaust duct and other components. Use a manual lever mechanism or an electric device to turn the butterfly plate to open and close the valve, so as to reduce or completely stop the air supply to the blast furnace without stopping the blower, and discharge the excess gas into the atmosphere. The special place in its structure is the electric drive that can be operated remotely. The size of the flap of the vent valve can be moved to easily change the size of the air volume, and the output signal can be reversed through the automatic position on the vent valve. Use the DFP-09 electric operator to display the size of the valve opening. As long as the electric operator is controlled, the required air volume can be achieved. It is suitable for ventilation ducts in building materials, metallurgy, chemical industry, power stations and other industries, as a device for automatic adjustment or remote control of the air volume required by equipment. Under the condition of given air pressure, the required air volume is automatically controlled by the servo amplifier, electric operator, valve position feedback and other devices. The structure is simple and the operation is convenient. In order to improve the linearity of the valve opening, the double-valve structure is adopted.

Main outline and connection size