Manual gas butterfly valveIt is a driving device for valves to achieve opening, closing, or regulating control, suitable for valves such as butterfly valves, ball valves, plug valves, and dampers that rotate 90 degrees. This series of electric devices can be remotely controlled or operated on site, and are widely used in industries such as power, metallurgy, petroleum, chemical, food, textile, papermaking, pharmaceuticals, water plants, and sewage treatment.

The manual gas butterfly valve is composed of a motor, a reduction mechanism, a stroke control mechanism, a torque control mechanism, an opening indicator mechanism, a handwheel, a mechanical limit, and an electrical part. The valve body adopts * technology and adopts a high-performance eccentric structure design. The valve seat and butterfly plate have almost no wear and tear, and have a sealing function that becomes tighter and tighter as viewed, and comply with the national GB/T13927-92 valve pressure test standard. Manual gas butterfly valves are widely used in industrial process automatic control systems in industries such as power, environmental protection, chemical, steel mills, petroleum, coal mines, etc., especially suitable for high concentration gas and other flammable and explosive pneumatic applications.

The manual gas butterfly valve has a small and smooth shell, small size, light weight, simple wiring, and is beautiful, easy to move and maintain. It has stable performance and is available in ordinary, potentiometer equipped, passive, intelligent, fast and slow closing, indicator display, etc. The valve body adopts technology (gas butterfly valve wear-resistant, anti-corrosion, anti-static).Manual gas butterfly valveThe power loss rate is low, which can save a lot of costs. The technology is advanced, and the electronic part adopts imported components with stable performance. The mechanical part is finely processed, precise and wear-resistant, with multiple protection devices to prevent damage caused by improper operation or overload. The hand electric device can be manually controlled at any time, and the compact structural optimization design eliminates the shortcomings of high working noise.

The intelligent integrated device for manual gas butterfly valve has signal 4-20mA input and output, proportional adjustment control and positioning, no need for manual control, position self-locking, simple connection, stable and reliable performance, high control accuracy, fast response speed, etc. It is easy to install on the valve and can be directly installed on the manual valve without mechanical processing.Manual gas butterfly valveDirect torque control directly analyzes the mathematical model of an AC motor, controls the magnetic flux and torque of the motor in the stator coordinate system. The direct torque control magnetic field orientation uses the stator magnetic flux, and as long as the stator resistance is known, it can be observed, which can greatly reduce the influence of parameter changes on control performance in vector control technology. Direct torque control uses the concept of space vector to analyze the mathematical model of a three-phase AC motor and control its various physical quantities, making the problem simple and clear.