The gate valve connected with high and medium pressure flange is suitable for the pipelines of various systems of petroleum, chemical, hydraulic, and thermal power plants with a nominal pressure of PN1.6～16.0MPa and a working temperature of -29℃～550℃. . Applicable media are: water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc.

Features:
1. Exquisite selection of materials, in line with relevant domestic and foreign standards, and high overall quality of materials.
2. It meets the requirements of advanced standards at home and abroad, with reliable sealing, excellent performance and beautiful appearance.
3. The sealing pair is advanced and reasonable. The sealing surfaces of the gate and the valve seat are made of Stellite cobalt-based hard alloys with different hardness. The sealing is reliable, high hardness, wear resistance, high temperature resistance, and corrosion resistance. , Good scratch resistance and long life.
4. After quenching and tempering and surface nitriding treatment, the valve stem has good corrosion resistance, scratch resistance and wear resistance
5. It adopts wedge-type elastic gate structure, with large and medium-diameter thrust bearings, with low friction, and equipped with impact manual operation, which makes it easy to open and close.
6. Various piping flange standards and flange sealing surface forms can be used to meet various engineering needs and user requirements.

Applications:
water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc.