Main features and uses
1. Reasonable structural design, good rigidity and good sealing performance.
2. There is almost no friction between the valve disc and the valve seat seal during the opening and closing process, so it is wear-resistant.

 3. The flow rate can be achieved with a small opening height.

 4. It can be installed at any position of the pipeline.
5. The packing is made of flexible graphite, which is flexible to open and close and has reliable sealing.
6. Large-caliber manual valves are equipped with impact handwheels.
7. It is widely used in water, steam, and oil pipelines such as alumina, petroleum, chemical industry, and thermal power generation to connect and cut off the medium. Changing the shape of the valve disc can be used to throttle the system medium.