Working principle of electric butterfly valve:
The working power supply usually includes: AC220V, AC380V, etc. Input signal: 4~20mA 0~10v and other weak current signals. After the adjustment type electric actuator and the valve stem are connected and debugged, the electric energy is used as the driving force to drive the hard-sealed butterfly valve plate for a 0-90° partial rotation. Receive the 4-20mA signal of the industrial automation control system to accurately control the valve opening, so as to achieve the adjustment and control of different process parameters such as flow, temperature, and pressure.
Electric butterfly valves are widely used in industrial process automatic control systems in food, environmental protection, light industry, petroleum, chemical, water treatment, municipal engineering, papermaking, electric power, water treatment and other industries.
Electric butterfly valves are suitable for heating, ventilation and refrigeration industries, as well as for industrial fields, general service fields and water treatment.
Features of electric butterfly valve:
(1) Adopting double eccentric structure, with tighter and tighter sealing function, and reliable sealing performance.
(2) The sealing material is made of stainless steel and nitrile oil-resistant rubber, which has a long service life.
(3) The rubber sealing ring can be located on the valve body or on the butterfly plate. It can be applied to different characteristics of media for users to choose.
(4) The butterfly plate adopts a frame structure with high strength, large flow area and small flow resistance.
(5) The overall baking varnish can effectively prevent corrosion and can be used in different media as long as the sealing material of the sealing valve seat is replaced.
(6) This valve has a two-way sealing function, and it is not controlled by the flow direction of the medium during installation, and is not affected by the spatial position. Can be installed in any direction.
(7) It has the advantages of small size, light weight, reliable performance, simple matching, and large flow capacity, which is especially suitable for clean liquids and gases.
Electric butterfly valve classification:
Commonly used electric butterfly valves include wafer type electric butterfly valves and flange type electric butterfly valves. Wafer type electric butterfly valve uses double-head bolts to connect the valve between two pipeline flanges. Flange type electric butterfly valve is equipped with flanges on the valve, and the two ends of the valve are flanged to the pipeline flange with bolts.
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