YBDF-WF-223-4 Explosion-proof Motor

YBDF-WF-223-4 Explosion-proof Motor Product Introduction

The YBDF-WF-223-4 is an outdoor corrosion-proof flameproof three-phase asynchronous motor dedicated for valves. It is designed for industrial environments that are flammable, explosive, humid, dusty, and mildly corrosive. It is suitable for driving small and medium-sized valve electric devices, integrating advantages such as explosion-proof safety, outdoor weather resistance, high efficiency, energy saving, stability, and durability. It is widely used in key fields such as petrochemical, gas energy, and electric power water treatment, serving as a core power component for fluid control equipment in hazardous environments.

Model Interpretation

The letters and numbers in the model precisely correspond to the product's core attributes: Y stands for three-phase asynchronous motor; B represents flameproof explosion-proof structure; D specifically indicates dedicated for valves, with torque characteristics matching valve opening and closing needs; F stands for protection type; WF identifies outdoor corrosion-proof function, suitable for humid, salt spray, and mild acid-base environments; 223 is the frame number and core length, determining power output specifications; 4 represents the 4-pole design with a rated speed of approximately 1440r/min, balancing power and stability.

Core Technical Parameters

The motor parameters strictly follow the GB3836 series of explosion-proof standards and JB/T industry specifications, adapting to general industrial site requirements. Key parameters are as follows:

• Rated Power: 0.75kW, precisely matching the opening and closing torque of small and medium-sized valves, providing stable and efficient power output.

• Rated Voltage: 380V (three-phase), a general industrial specification that can be directly adapted to most power supply systems, supporting customization of special voltages such as 660V and 440V.

• Rated Current: 2.8A, with smooth operating current and excellent energy consumption control, suitable for long-term continuous or short-time intermittent working scenarios.

• Rated Speed: 1440r/min (4-pole), offering moderate opening and closing speed for precise control of valve switch amplitude, protecting sealing surfaces. The rotor features a slender design with small inertial load for stall-free operation.

• Explosion-proof Grade: Exd Ⅱ BT4, suitable for environments with flammable and explosive gas mixtures of Class II, Groups A and B in factories, Temperature Groups T1-T4, capable of safe operation in Zone 1 and Zone 2 hazardous locations.

• Protection Grade: IP55 (standard), offering excellent dust and waterproof performance. Outdoors, it can resist rain and dust erosion; for special scenarios, it can be upgraded to IP65/IP68.

• Insulation Grade: Class F, heat resistance temperature of 155℃, resistant to high-temperature aging, extending motor service life.

• Duty Type: S2-10min short-time intermittent periodic duty, fitting the operating condition requirements of frequent valve opening and closing.

• Environmental Conditions: Suitable for environments from -20℃ to +40℃ and altitude ≤1000m, capable of withstanding salt spray and mild acid-base corrosion.

Structural Design and Core Advantages

1. Flameproof Safety Structure

Adopting a high-strength cast iron flameproof enclosure with high mechanical strength, impact resistance, and good heat dissipation, it effectively blocks internal sparks and high temperatures from propagating to the external flammable and explosive environment. The flameproof joint surfaces are precision-processed, and the meshing threads and lengths strictly comply with standards, ensuring reliable explosion-proof performance. The junction box is designed as an independent flameproof chamber with excellent sealing performance to prevent external flammable and explosive gases from entering, ensuring electrical connection safety.

2. Outdoor Corrosion Resistance and Weatherability

The machine body adopts a corrosion-resistant coating process combined with WF outdoor corrosion-proof design, capable of withstanding humidity, salt spray, rain, and mild acid-base corrosion. It is suitable for long-term use in outdoor open-air, coastal, and chemical corrosive environments. With protection grade IP55, it is dust and waterproof, preventing the intrusion of solid objects and erosion by low-pressure water jets, adapting to harsh working conditions with dust and rain.

3. High Efficiency and Stable Performance

The stator uses high-quality red copper windings and a vacuum impregnation process, offering excellent insulation performance, high-temperature resistance, and aging resistance, reducing winding losses and improving operating efficiency. The rotor adopts a high-precision die-casting process with dynamic balance correction, ensuring small vibration, low noise, and strong stability during operation. Equipped with high-quality bearings, it has a small friction coefficient, good heat dissipation, and long service life, reducing maintenance costs. It features excellent torque characteristics, large starting torque, and strong overload capacity, adapting to load fluctuations during valve opening and closing, ensuring precise and reliable actions.

4. Strong Adaptability and Easy Installation

Adopting the B5 flange installation method, it has a high degree of matching with valve electric devices, offering convenient installation and firm positioning, suitable for various small and medium-sized multi-turn valve equipment. The structure is compact, the volume is small, and the weight is moderate, facilitating handling and on-site installation and debugging. The standardized interface design offers strong compatibility, allowing direct replacement of imported or domestic motors of the same specification, reducing equipment modification costs.

Application Scenarios

With the core advantages of explosion-proof, corrosion-proof, and stable torque, the YBDF-WF-223-4 explosion-proof motor adapts to various small and medium-sized valve electric control scenarios and is widely used in:

• Petrochemical: Refineries, chemical plants, oil and gas transmission pipelines, storage tank areas, and other flammable and explosive places, driving small and medium-sized valves to ensure the safety and stability of fluid transmission and reaction processes.

• Gas Energy: City gas stations, LNG stations, pressure regulation stations, gas pipelines, etc., driving gas valves for precise opening and closing, preventing leaks, and ensuring gas transmission safety.

• Electric Power Industry: Power plant water treatment systems, circulating water systems, chemical dosing systems, etc., adapting to humid, dusty, and mildly corrosive environments to ensure stable valve operation.

• Water Treatment and Environmental Protection: Sewage treatment plants, waterworks, industrial wastewater treatment stations, etc., driving sewage and clean water valves, adapting to humid and corrosive media environments.

• Other Fields: Industries such as metallurgy, pharmaceuticals, and grain and oil processing that have flammable, explosive, or corrosive environments, adapting to small and medium-sized valve driving needs.

Quality Assurance

The product strictly follows GB3836.1-2010, GB3836.2-2010 explosion-proof standards, and ISO9001 quality system certification. Quality is strictly controlled throughout the entire process from raw material procurement, parts processing, and complete machine assembly to factory testing. Before leaving the factory, each motor undergoes multiple rigorous tests such as explosion-proof performance, insulation resistance, no-load current, and load temperature rise to ensure the product is safe, reliable, and stable in performance. It can operate continuously in harsh environments for a long time with low maintenance costs and a long service life.

With safety explosion-proof, outdoor weather resistance, high efficiency, energy saving, stability, and durability as its core competitiveness, the YBDF-WF-223-4 explosion-proof motor perfectly adapts to the driving needs of small and medium-sized valves in hazardous environments. It is the preferred power component for fluid control equipment in industries such as petrochemical and gas energy, providing reliable assurance for the safe and stable operation of industrial production.