Manual Butterfly Valve
Manual butterfly valve is design for easy maintenance. It includes lever operated and gear operated, its operation needs to be carried out manually. It has a disc installed in the diameter direction of the pipe. In the cylindrical channel of the valve body, the disc rotates around the axis, and the rotation angle is between 0° and 90°, and when it reaches 90°, the valve is fully open. The butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. And it can be opened and closed quickly by rotating only 90°, which is easy to operate.
The most common types of butterfly valves that are driven by manual, pneumatic, hydraulic and electric. Manual butterfly valves can be subdivided into lever operated and gear operated. There is no big influence on the installation of manual butterfly valves, but the difference lies more on the operation and use.
According to different working condition and media, it can make in cast iron, carbon steel, stainless Steel, duplex, Hastelloy, 904 L, titanium etc.
