The installation of the one-way sealing butterfly valve has installation requirements.
Worm gear butterfly valves can be made with larger diameters, so worm gear butterfly valves are more expensive than handle butterfly valves.
It is difficult to distinguish from the appearance, it depends on the internal structure of the ball valve.
The handle is perpendicular to the pipe, which means it is closed. If the handle is parallel to the pipe, the butterfly valve is now open.
The structure of the wafer butterfly valve is shorter, smaller in size, and lighter in weight.
The ball valve has no direction distinction. This is only theoretical. In the actual installation process, we have to consider some factors.
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