Electric butterfly valve is a kind of electric valve and electric regulating valve. The main connection methods of electric butterfly valve are: flange type, wafer type and lug type. According to the transmission mode, it can be divided into manual, gear transmission, pneumatic, hydraulic and electric. It is an important execution unit in the field of industrial automation control. Electric butterfly valve belongs to a variety of electric valve and electric regulating valve. The main connection methods of electric butterfly valve are: flange type and wafer type; the main sealing forms of electric butterfly valve are: rubber seal and metal seal. The electric butterfly valve controls the opening and closing of the butterfly valve through the power signal. This product can be used as a shut-off valve, control valve and check valve for piping systems. With a manual control device, in the event of a power failure, manual operation can be temporarily used without affecting the use.
The structure and working principle of electric butterfly valve
It is usually composed of an angular stroke electric actuator (0~90° partial rotation) and the butterfly valve as a whole through mechanical connection, after installation and debugging.
According to the action mode, there are: switch type and adjustment type.
The switch type is to directly connect the power supply (AC220V or other power level power supply) to complete the switching action by switching the forward and reverse directions.
The adjustment type is powered by AC220V power supply, and receives the preset parameter value 4~20mA (0~5 and other weak current control) signals of the industrial automation control system to complete the adjustment action.
The main purpose of electric butterfly valve
Pipeline flow, pressure and temperature control for various industrial automation production. For example: electric power, metallurgy, petrochemical, environmental protection, energy management, fire protection system, etc.
Product features of electric butterfly valve
1. The opening and closing is convenient and quick, labor-saving, and the fluid resistance is small, which can be operated frequently.
2. Simple structure, small size and light weight.
3. The mud can be transported, and the liquid accumulation at the pipe mouth is the least.
4. Under low pressure, good sealing can be achieved.
5. The electric butterfly valve has good adjustment performance.