Sanitary Butterfly Valve Working Principle

The main advantages of the anti-leak butterfly valve are simple structure, small size, light weight, and low cost. The anti-leak butterfly valve is particularly remarkable. It is installed in the high-altitude dark passage. It is easy to operate through the two-position five-way solenoid valve, and the flow medium can also be adjusted. The fluid resistance is small. The medium and large diameter anti-leak butterfly valve has a large flow area when fully opened. The opening and closing are quick and labor-saving. The opening and closing can be completed by rotating the disc wrench 90 degrees. Since the disc wrench medium forces on both sides of the shaft are almost equal, the torque generated is in the opposite direction, so the opening and closing torque is small, and good sealing can be achieved under low pressure. The butterfly valve sealing materials are nitrile rubber, fluororubber, edible rubber, and lined with polytetrafluoroethylene, so the sealing performance is good. Among them, the hard seal butterfly valve is a soft and hard laminated metal sheet with the advantages of metal hard seal and elastic seal. It has excellent sealing performance regardless of low temperature.

Analysis of the applicable environment of the structure and working principle of the anti-leak butterfly valve

The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the anti-leakage butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open.
The butterfly valve has a simple structure, small size, light weight, and is composed of only a few parts. Moreover, it can be quickly opened and closed by rotating 90°, which is simple to operate. At the same time, the electric valve has good fluid control characteristics. When the anti-leakage butterfly valve is in the fully open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body. Therefore, the pressure drop generated by the valve is very small, so it has good flow control characteristics. Anti-leakage butterfly valves have two sealing types: elastic sealing and metal sealing. For elastic sealing valves, the sealing ring can be embedded in the valve body or attached to the periphery of the butterfly plate.