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Stainless steel large caliber gate valve


High and medium pressure flanged gate valves are suitable for pipelines of various systems in petroleum, chemical, hydraulic and thermal power stations with a nominal pressure of PN1.6 ~ 16.0MPa and operating temperature ≤-29 ℃ ~ 550 ℃. . Applicable medium: water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc.
Structural features
1. Exquisite selection of materials, in accordance with relevant standards at home and abroad, high overall quality of materials.
2. Meet the requirements of domestic and foreign advanced standards, reliable sealing, excellent performance and beautiful appearance.
3. The sealing pairing is advanced and reasonable. The sealing surfaces of the gate and valve seat are made of Stellite cobalt-based hard alloy with different hardness. 2. Good anti-scratch performance and long life.
4. The valve stem undergoes quenching and tempering and surface nitriding treatment, and has good corrosion resistance, abrasion resistance and wear resistance.
5. It adopts wedge-type elastic brake plate structure. Thrust bearings are set in the middle and large calibers, and the friction force is small. It is also equipped with an impact hand wheel, which can be opened and closed easily.
6. Various piping flange standards and flange sealing surfaces can be used to meet various engineering needs and user requirements.
Material of main parts



Main connection size


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Copyright 2013 Yongjia Bogong Valve Co., Ltd. LUOTUO All Right Reserved. Address: Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province Record Number: Zhejiang ICP No. 18016936-1 Technical Support: Huayi Network
Yongjia Bogong Valve Co., Ltd. (operafour.com) Main Products: American standard gate valve, large caliber gate valve, electric flange gate valve, power station stop valve, Z941H electric high pressure gate valve, high pressure chromium molybdenum steel gate valve, American standard ball valve