Introduction to YDF-WF-212-4 Three-Phase Asynchronous Motor

The YDF-WF-212-4 is a specialized three-phase asynchronous motor developed by Yangzhou Huatong Electric Valve Manufacturing Co., Ltd. specifically for electric actuators. Optimized and upgraded based on the YDF-WF-211-4, it features stronger power output, a higher protection rating, and superior operational stability. It is precisely adapted for operating conditions with frequent valve start-stops and significant load fluctuations, making it a core power component for automated valve control in industries such as electric power, chemicals, metallurgy, and water treatment.

This motor adopts a 4-pole design with a synchronous speed of 1500r/min. The rated power is increased compared to the 211 model, providing stronger torque output to easily drive large-diameter, high-load valves. It meets the requirements for rapid opening/closing and precise regulation of various valves, including gate valves, globe valves, ball valves, and butterfly valves. The stator and rotor are formed by laminating high-grade non-oriented silicon steel sheets, combined with advanced winding embedding and impregnation processes. This effectively reduces electromagnetic and mechanical losses, achieving an operating efficiency of over 90%. It saves 6%-10% more energy than ordinary asynchronous motors, significantly reducing corporate electricity costs over long-term operation and aligning with industrial energy-saving trends.

Protection performance is the core competitiveness of the YDF-WF-212-4. The "WF" in the model number represents a specialized design for outdoor corrosion and moisture resistance. The overall protection rating reaches IP56, which is superior to the base models in the same series. It can comprehensively defend against dust, rain, and oil intrusion, even withstand short-term water jet impacts, making it suitable for harsh conditions such as outdoor open-air environments, damp and dusty areas, coastal salt spray, and mild acid/alkali corrosion. The motor housing is made of high-strength cast iron with a multi-layer anti-corrosion coating and passivation treatment on the surface. It is resistant to acid and alkali, aging, and salt spray, ensuring long-term stable operation in scenarios like chemical parks, coastal wharves, and sewage treatment plants, thereby reducing failures caused by environmental erosion.

In terms of operational stability, the motor is equipped with high-precision deep groove ball bearings and has undergone strict dynamic balance correction. The vibration value during operation is ≤0.05mm, and noise is controlled to **≤62dB**, far below industry standards, avoiding the impact of vibration transmission on valve sealing performance and actuator accuracy. The insulation class reaches Class F, offering excellent heat resistance, allowing continuous operation in ambient temperatures ranging from -25℃ to 65℃, adapting to temperature differences across regions and seasonal changes. Additionally, it is built with a bimetallic thermal protector. When the motor temperature exceeds limits due to overload, stalling, or poor heat dissipation, it quickly cuts off power automatically, effectively protecting the winding from burning out and enhancing equipment operational safety.

Regarding installation adaptability, the YDF-WF-212-4 adopts international standard flange and shaft extension dimensions. It can directly interface with mainstream electric actuators such as the Huatong 341 series, 381 series, ZYS series, and DZW series without requiring modification. Installation is convenient, and versatility is high. The motor junction box features a sealed waterproof design with secure and reliable terminals, supporting 380V three-phase industrial power input. It is compatible with mainstream domestic grid standards, making on-site wiring and debugging simple, thereby reducing installation and maintenance difficulty.

During long-term use, this motor serves as a reliable guarantee for electric valve systems due to its low maintenance and long life characteristics. Its compact structure and moderate volume fit the installation space of various valve actuators without requiring additional reserved space for modification. Addressing the operating characteristics of electric valves involving frequent start-stops and frequent forward/reverse switching, the motor's internal commutation windings and insulation structure are reinforced. The mean time between failures (MTBF) exceeds 25,000 hours, significantly reducing equipment maintenance frequency and replacement costs, thereby lowering corporate operation and maintenance pressure.

In summary, the YDF-WF-212-4 specialized three-phase asynchronous motor features core advantages of strong power, high energy efficiency, robust protection, stable operation, and easy adaptability. It precisely matches the complex operational requirements of electric actuators and is an upgraded power choice in the field of industrial automated valve control. It helps enterprises achieve safe, efficient, and stable operation of valve systems, enhancing the level of industrial automation control.