1. The explosion-proof central shaft is marked at the top of the central shaft. The valve is open when it is parallel to the mark and closed when it is 90 °.

2. Two piece two-way full flow valve body structure with high efficiency flow coefficient.

3. The valve seat is made of modified PTFE, which has excellent creep recovery after compression, compact structure, not easy to stain, and extremely resistant to low temperature and humidity

Gas permeability.

4. The soft sealing surface has good internal and external leakage prevention effect.

5. The valve seat is designed to hold the floating ball, and the valve seat is easy to replace.