Features
(1) Adopting double eccentric structure, with tighter and tighter sealing function, and reliable sealing performance.
(2) The seal pair 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, which 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.
Overview of electric butterfly valve:
Electric butterfly valve is called the perfect combination of electric actuator and butterfly valve. The same required torque configuration is in line with the internationally accepted SIO5211 connection standard platform and mutual ±5° fine-tuning, which can reach the precision Concord actuator, the electric actuator 90 °120°180°270°rotation angle stroke torque control is divided into switch passive contact feedback type/intelligent adjustment type, special environment explosion-proof and explosion-proof type. Hard aluminum alloy shell, executive power supply DC24v, AC220v, AC380v, etc. optional. Built-in overheating protection, central control feedback signal, indicator see-through window, with power-off emergency manual device. Protection class IP67. The bottom installation size meets the ISO5211/DIN3337 international standard. Adapts to an ambient temperature of 8°C, epoxy resin coating. Detailed data shall be provided separately by the supplier.
classification
Commonly used electric butterfly valves include wafer type electric butterfly valves and flange type electric butterfly valves. Wafer type electric butterfly valve is connected between two pipe flanges with stud bolts. Flange type electric butterfly valve is equipped with flanges on the valve, and the two ends of the valve are flanged to the pipe flanges with bolts.
working principle
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 4-20mA signal of industrial automation control system to accurately control valve opening, so as to achieve the adjustment and control of different process parameters such as flow, temperature, and pressure.
Application field
It is 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.
