1. Opening and closing is convenient, fast, labor-saving, fluid resistance is small, and can be operated frequently.
2. It is simple in structure, small in size, short in length, small in volume and light in weight. It is suitable for large caliber valves.
3. The slurry can be transported and the least liquid can be stored at the outlet of the pipeline.
4. Good sealing can be achieved under low pressure.
5. Good regulation performance.
6. When fully open, the effective flow area of seat passage is larger and the fluid resistance is smaller.
7. The opening and closing moment is small. Because the butterfly plates on both sides of the rotating shaft are basically equal to each other under the action of medium, the direction of the generating torque is opposite, so the opening and closing is more labor-saving.
8. Sealing surface materials generally use rubber, plastic, so low-pressure sealing performance is good.
9. Easy installation.
10. Flexible and labor-saving operation. Manual, electric, pneumatic and hydraulic modes can be selected.