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Electric Flange Butterfly Valve

Keywords: metering pump accessories


Electric butterfly valve

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    Working principle of electric flange butterfly valve:


    The electric flange butterfly valve uses an electric actuator to input a standard signal of 0-10 mA, and the motor unit drives the gear turbine worm and the angular torque drives the disc to rotate. When the valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated by the valve is very small, so it has good flow control characteristics. Electric flange butterfly valve has two sealing types: elastic seal and metal seal. For elastic sealing valves, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate. Valves with metal seals generally have a longer service life than valves with elastic seals, but it is difficult to achieve complete sealing. Metal seals can adapt to higher operating temperatures, while elastic seals have the disadvantage of being limited by temperature. If the electric flange butterfly valve is required to be used as flow control, the main thing is to correctly select the size and type of the valve.


    Electric flange butterfly valve parameter description:

    Nominal diameter


    Nominal pressure


    Connection Type

    Flange connection

    Valve body material

    Cast iron, cast steel, stainless steel, chromium molybdenum steel, alloy steel

    Sealing material

    Rubber, PTFE, PPL, stainless steel, polylactin, anti-wear materials

    Action range


    Leakage amount

    According to GB/T4213-92, the Kv value is 10-4, soft seal (zero leakage)

    Applicable media

    Water, steam, oil, acid corrosive media, etc.

    temperature range

    Soft seal: -29℃~180℃; Hard seal: -40℃~550℃


    After-sales service commitment

     For your company to order valve products from our company, our company makes the following commitments in terms of after-sales service:

    1. Our company implements three guarantees for product quality, namely: quality guarantee, replacement guarantee, and warranty;

    2. After the contract is signed, the quality, quantity and on-time delivery are guaranteed;

    3. The company ensures that the valve products provided meet the contract specifications

    4. Provide answers to buyers’ technical inquiries at any time;

    After receiving letters or phone calls from users reporting quality problems, we guarantee a reply within 24 hours to resolve the problem as quickly as possible.