Tianjin electric butterfly valve is composed of an electric actuator and a butterfly valve. Therefore, it has the advantages of easy operation and simple structure of butterfly valves, and is also widely used in the chemical, pharmaceutical and other industries. The commonly used electric butterfly valves in Tianjin include wafer type electric butterfly valves and flanged type electric butterfly valves. With the assistance of electric actuators, the development of butterfly valves has reached a new level.
The principle of the electric butterfly valve in Tianjin is actually very simple. Just like the daily used razor, its energy source is electricity.
Electricity drives the operation of the valve plate, thereby achieving the purpose of opening and closing the valve and allowing or cutting off the flow of fluid. The switch quantity can be directly adjusted by inputting a 220V power supply. It can also be equipped with a built-in servo module, and the operation can be controlled by inputting control signals (4 ~ 20mADC or 1 ~ 5VDC) and single-phase power supply.
Second, the electric actuator of the electric butterfly valve in Tianjin can be divided into on-off type and regulating type. The on-off type electric butterfly valve plays a role
The function of the switch; The regulating electric butterfly valve is used to regulate the flow rate and can precisely adjust the flow rate to a thousand degrees. It is also a relatively expensive type of valve. Electric butterfly valves are not only widely used in general industries such as petroleum, gas, chemical engineering and water treatment, but also in the cooling water systems of thermal power stations.
Thirdly, as a device installed in pipelines, it seems that the on-off status of valves is not very accurate if they are inspected on-site
In line with reality, feedback signals thus exist. When placing the electric butterfly valve, it is necessary to ensure that the electric device is not squeezed and the terminal blocks are not damaged, and to prevent contact with corrosive substances. Handle with care during transportation to avoid damaging electrical components and mechanical parts.
Fourth, the regulating type itself is equipped with feedback signals, while the switching type can choose whether to install feedback signals according to the specific needs of the customer. The electric plastic butterfly valve, also known as the PVC electric butterfly valve, is composed of an integrated electric actuator and a plastic butterfly valve. The regulating type is powered by an AC220V power supply and receives the preset parameter value of 4~20mA(weak current control such as 0~5) signals from the industrial automation control system to complete the regulating action.
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