ZFA Valve specializes in producing all types of butterfly valves. If customers have needs, we can purchase electric actuator of international brands or well-known Chinese brands on our behalf, and provide them to customers after successful debugging.
An electric butterfly valve is a valve driven by an electric motor and is used to control the flow of liquid or gas. It usually consists of butterfly valve, motor, transmission device and control system.
The working principle of the electric butterfly valve is to drive the transmission device through the motor to rotate the valve plate, thereby changing the channel area of the fluid in the valve body and adjusting the flow rate. The electric butterfly valve has the characteristics of rapid opening and closing, simple structure, small size, light weight, and energy saving.
1. The concept of waterproof and explosion-proof motor grades
The waterproof motor grade refers to the water pressure and water depth levels that the motor can withstand under different waterproof conditions. The classification of waterproof motor grades is to meet different usage environments and needs to ensure the normal operation and service life of the motor. The explosion-proof motor rating refers to the motor's ability to avoid causing an explosion when working in a hazardous environment.
2. Classification of waterproof motor grades
1. IPX0: No protection level and no waterproof function.
2. IPX1: The protection level is dripping type. When the motor drips water in the vertical direction, it will not cause damage to the motor.
3. IPX2: The protection level is inclined dripping type. When the motor drips water at an angle of 15 degrees, it will not cause damage to the motor.
4. IPX3: The protection level is rainwater type. When the motor is splashed by rainwater in any direction, it will not cause damage to the motor.
5. IPX4: The protection level is water spray type. When the motor is sprayed with water from any direction, it will not cause damage to the motor.
6. IPX5: The protection level is strong water spray type. The motor will not be damaged when it is subjected to strong water spray in any direction.
7. IPX6: The protection level is strong water flow type. The motor will not be damaged when it is subjected to strong water flow in any direction.
8. IPX7: The protection level is short-term immersion type. The motor will not be damaged when it is immersed in water for a short period of time.
9. IPX8: The protection level is long-term immersion type. The motor will not be damaged when it is immersed in water for a long time.
3. Classification of explosion-proof motor grades
1.Exd explosion-proof level: Exd-level motors run in a sealed explosion-proof shell to prevent explosions caused by sparks or arcs inside the motor. This motor is suitable for use in flammable gas or steam environments.
2. Exe explosion-proof grade: Exe grade motors enclose the motor terminals and cable connections in an explosion-proof enclosure to prevent sparks or arcs from escaping. This motor is suitable for use in environments with flammable vapors.
3.Ex n explosion-proof level: Exn level motors have explosion-proof electrical components installed inside the casing to reduce the generation of sparks and arcs. This motor is suitable for use in flammable gas or steam environments.
4.Exp explosion-proof level: Exp-level motors have explosion-proof electrical components installed inside the casing to protect the electrical components inside the motor from flammable gases or steam. This type of motor is suitable for operation in environments with flammable gases or vapors.
4. Characteristics of waterproof and explosion-proof motor grades
1. The higher the level of waterproof and explosion-proof motor, the better the waterproof and explosion-proof performance of the motor, the greater the water pressure and water depth it can withstand and the greater its anti-hazard performance.
2. The improvement of the waterproof and explosion-proof motor level will increase the cost of the motor, but it can improve the service life and reliability of the motor.
3. The selection of waterproof and explosion-proof motor grade should be based on the actual use environment and needs to ensure the normal operation and service life of the motor.
In short, the waterproof and explosion-proof level of the motor is an important factor in ensuring safety. Different levels are suitable for different hazardous environments, and relevant safety standards and regulations need to be strictly followed.
In short, the waterproof and explosion-proof level of the motor is an important factor in ensuring safety. Different levels are suitable for different hazardous environments, and relevant safety standards and regulations need to be strictly followed.