Q367N Forged Steel Fully Welded Ball Valves

Q367N Forged Steel Fully Welded Ball Valves

Aug 26, 2022


The forged fully welded ball valve is a special valve used under maintenance-free conditions. It is an important device for long-distance safe transportation of oil and natural gas. It has the characteristics of high strength, zero leakage, safety, reliability, and long service life. It can meet various complex requirements of long-distance safe transportation of oil and natural gas and is undoubtedly one of the valves with high technique.
 
Given that oil and natural gas are flammable and explosive products, and no leakage is allowed. Welding is adopted for the forged fully welded ball valve instead of bolts to avoid the risk of leakage caused by bolting. Forged steel welding is adopted for the shell. The welding process is innovative. The submerged arc welding and multi-layer welding technology are used. The subsequent weld pass has a good tempering effect on the previous weld pass, which improves the toughness of the welding seam, avoids the post-weld heat treatment process, and effectively improves the sealing of the forged fully welded ball valve.
 
The features of the forged fully welded ball valve
  • A narrow gap automatic submerged arc welding process is adopted for all-welded trunnion ball valves with medium and large diameters. This process innovatively designs submerged arc welding and multi-layer welding technology that adopts U-shape, small angles, narrow gaps and low line energy. The post-weld heat treatment process can effectively improve the sealing of the forged fully welded ball valve.
  • A new type of sealing surface structure of the large-diameter ball valve seat with primary and secondary sealing rings is designed. While reducing the opening and closing torque, the sealing is significantly improved, and it has a good self-cleaning function, which increases the service life of the sealing surface.
  • A double sealing structure for the valve stem is designed, which can greatly improve the sealing of the valve. The friction between the valve stem and the O-ring seal is very small, which greatly reduces the opening and closing torque of the valve.
Topper valve is a manufacturer specializing in the development, production and sales of various forged valves in various materials such as stainless steel, alloy steel and carbon steel. Our main products are forged ball valves, forged gate valves, forged globe valves, forged check valves and other forged valves. We are committed to the production, sales, technical support and service of forged valves.
 
Our forged valves are exported to the United States, Canada, Australia, Italy, the Middle East, Japan, South Korea, Southeast Asia, Egypt and other countries and regions, and are praised by the majority of users. Since our establishment, we have been committed to the professional research, development, production and sales of forged valves. We continue to launch new products, continuously improve and innovate products. We are willing to meet the different needs of customers with more products, better quality and better service.

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Launched in 1988, Topper Forged Valve Company is engaged in manufacturing forged steel valves. Our products cover Forged Steel Ball Valve, Gate Valve, Check Valve, Globe Valve, According to API, BS, DIN, JIS GB Standards.
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NO. 879, Xiahe Road, Xiamen, Fujian, China

086 592 5819200