The butterfly plate of the LUG butterfly valve is installed in the diameter direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0 degrees and 90 degrees. When it rotates to 90 degrees, the valve is fully open.

LUG butterfly valve has simple structure, small volume and light weight, and only consists of a few parts. And it only needs to rotate 90 degrees to open and close quickly, the operation is simple, and the valve has good fluid control characteristics. When in the fully open position, the thickness of the disc is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has better flow control characteristics. LUG butterfly valve has two types of seals: elastic seal and metal seal. Elastic sealing valve, the sealing ring can be inlaid on the valve body or attached to the periphery of the disc.
LUG butterfly valve is suitable for system management of petroleum, chemical industry, food, medicine, paper making, hydro power, water supply and drainage, smelting, energy, etc. It is used as a regulating and shut-off device on the container. It is especially widely used in high-rise building fire protection systems and other pipeline systems that need to display valve switch status.