1. The inner surface of valve body and cover, the outer surface of valve disc and stem, etc. All the parts directly in contact with the medium are lined with fluoroplastics.

2. The work stroke is small, the opening and closing time is short.

3. Good sealing performance, small friction between sealing surfaces and long service life.

4. The disc and stem are designed as a whole structure to prevent the possibility of the internal parts rushing out of the valve body caused by the pressure fluctuation of the pipeline. The structure is compact and safe to use.

5. The electric pneumatic device can be configured according to customer needs to meet the requirements of the operation.