Technical features

1. The product has reasonable structure, reliable sealing, excellent performance and beautiful appearance.

2. The sealing surface is welded with Co-based hard alloy, which has good wear resistance, corrosion resistance, abrasion resistance and long service life.

3. The valve stem has good corrosion resistance and abrasion resistance after quenching and tempering and surface nitriding.

4. The nominal pressure ≥25.0MPa (Class 1500) adopts a self-tightening sealing structure in the middle cavity, and the sealing performance increases with the increase of pressure, ensuring the sealing performance.

5. The valve is equipped with an inverted sealing structure with reliable sealing.

6. The material of the parts and the size of the flange and butt welding end can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.