1, material selection is exquisite, in line with the relevant standards at home and abroad, the overall quality of materials. 

2, meet the requirements of advanced standards at home and abroad, sealing reliable, excellent performance, beautiful shape. 

3. The sealing pair is advanced and reasonable. The sealing surface of the gate and valve seat is made of different hardness Stellite cobalt-based hard alloy by surfacing welding, the seal is reliable, high hardness, wear resistance, high temperature resistance, corrosion resistance, good abrasion resistance and long service life.

 4. The valve stem after conditioning and surface nitriding treatment, has good corrosion resistance, abrasion resistance and wear resistance. 

5. Adopt wedge-type elastic gate structure, set thrust bearing with medium and large diameter, low friction, and equipped with impact manual, easy to open and close.