The electric explosion-proof butterfly valve imported from Doldr, Germany is a kind of diversion merging or flow direction switching device, which has explosion-proof function. It is operated by electric actuator, which can control the flow and pressure of the medium, and is widely used in cutting, turning on and adjusting the medium in the pipeline, with good fluid control characteristics and closing sealing performance. Imported electric explosion-proof butterfly valves usually have the characteristics of simple structure, small size, light weight, low material consumption, small installation size, fast switching, 90° reciprocating rotation, and small driving torque. The connection methods mainly include flange type and clamp type, which is an important execution unit in the field of industrial automation control.
In terms of structure, the butterfly plate of the imported electric explosion-proof butterfly valve is installed in the diameter direction of the pipeline, and in the cylindrical channel of the valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0 ° and 90 °, and when the rotation reaches 90 °, the valve is in a fully open state. The electric actuator realizes the control of the valve through electromagnetic signals, and can accurately adjust the opening of the butterfly plate, so as to achieve the purpose of regulating a series of parameters such as flow, temperature and pressure of the medium in the installed production pipeline.
Imported electric explosion-proof butterfly valves are widely used in petrochemical, chemical, metallurgy, electric power and other fields, especially in some corrosive or high cleanliness requirements, such as sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, strong alkali, aqua regia and other highly corrosive media. However, it is not suitable for use in process media with particles and high temperatures.
The parameters of imported electric explosion-proof butterfly valves mainly include the following points:
Applicable medium: combustible gas, flammable liquid and other dangerous media.
Mode of operation: electric (electric actuator).
Explosion-proof grade: EXD CT4.
Degree of protection: IP65.
Power supply: AC 220V, AC 380V (other customized AC 24, etc.) 50 60Hz.
Ambient temperature: -30 +70.
When purchasing and using imported electric explosion-proof butterfly valves, the following points need to be noted:
When purchasing, you should choose the model and specification that meet the use needs and standards, and pay attention to whether the power supply voltage and current of the electric actuator meet the requirements.
During installation, it should be ensured that the valve is in the correct position and orientation to avoid leakage and damage.
In the process of use, the sealing performance of the valve and the operating status of the actuator should be checked regularly, and the problem should be found and solved in time.
In the process of operation, it should be carried out in accordance with the operating procedures to avoid misoperation and accidents.
In general, the imported electric explosion-proof butterfly valve is an industrial valve with an important role, which has a wide range of applications in many fields. In the process of use, it is necessary to pay attention to maintenance and upkeep to ensure its normal operation and service life.