Electric Actuator With Valve
Structural Features And Uses
Metal seal butterfly valve series products are long-life, energy-saving butterfly valves. The products comply with the national standards JB/T8527-97 (metal seal butterfly valve), GB/T13927-92 (universal valve pressure test) standards and other related standards for valves. This product consists of valve body, butterfly plate, sealing ring, transmission mechanism and other main components. Its structure is designed using the three-dimensional eccentric principle, and a new processing technology compatible with elastic sealing and hard and soft multi-layer sealing enables the butterfly valve to reduce its torque force during operation, achieving labor-saving and energy-saving functions. This ensures the overall reliability of the butterfly valve in terms of corrosion resistance, high temperature resistance and wear resistance. This butterfly valve is suitable for use in food, medicine, petrochemical industry, power plants, steel plants, industrial environmental protection water treatment and high-rise buildings, as the best device to regulate flow and cut off fluids in water supply and drainage pipelines.
Features
1. The butterfly plate sealing ring is a soft and hard laminated metal sheet, which has the dual advantages of metal hard sealing and elastic sealing. It has excellent sealing performance regardless of low or high temperature conditions.
2. Adopting a triple eccentric structure, the valve seat and the butterfly plate have almost no friction, and have a tighter sealing function as they are closed.
3. The sealing surface of the valve body is made of surfacing stainless steel and cobalt-based carbide. The sealing surface is wear-resistant and has a long service life.
4. Unique structure, flexible operation, labor-saving, convenient, not affected by high or low medium pressure, reliable sealing performance and long service life.
Performance Specifications
Parts Introduction
Working Principle
The butterfly valve is a valve that opens and closes by rotating the valve stem while driving the disc to rotate. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, mainly rotating the disc 90° for flow control. , when the disc reaches 90°, the valve is in a fully open state. At the same time, the angle of the disc can be changed to adjust the medium flow. It is generally installed in the diameter direction of the pipe. The butterfly valve and the valve stem themselves have no locking ability. In order to effectively adjust the flow rate, a worm gear reducer is required. A butterfly valve equipped with a worm gear reducer not only makes the butterfly valve self-locking, but also changes the operating performance of the butterfly valve and regulates the medium flow rate more accurately. .
Features Of Butterfly Valve
(1) Simple structure and small external dimensions. Due to its compact structure, short structural length, small size and light weight, it is suitable for large diameters. (1) Simple structure and small external dimensions. Due to its compact structure, short structural length, small size and light weight, it is suitable for large diameters. (3) It is easy to open and close quickly, has good adjustment performance, and the butterfly plate rotates 90 degrees. Both opening and closing can be completed. By changing the rotation angle of the butterfly plate, the flow rate can be controlled in stages. (4) The opening and closing torque is small. Since the butterfly plates on both sides of the rotating shaft are basically equally affected by the medium, and the torque is generated in opposite directions, opening and closing is less labor-intensive. (5) The low-pressure sealing performance is good. The sealing surface materials are generally made of rubber and plastic, so the sealing performance is good. Limited by the material of the sealing ring, the operating pressure and operating temperature range of the butterfly valve is small. However, the operating pressure and operating temperature range of hard-sealed butterfly valves have been greatly improved.
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