Analysis on the Market Development Prospect of Flange Gate Valves
In recent years, with the continuous development and change of gate valve market economy, the domestic gate valve market also fluctuates. The economic market has not been particularly stable, and so has the domestic and foreign market. The relative export of flange gate valve industry has weakened. But in the next 5-10 years, with the strengthening of China's overall strength and the upcoming G20 Summit (International Economic Cooperation Forum), the overall economic level will show an upward trend. At the same time, the mechanical gate valve industry will gradually pick up.
In the next few years, authoritative personages have analyzed that the development of gate valve industry will be biased towards flange gate valve. Flange gate valve is a valve that uses a sphere with a circular passage as the opening and closing part, and the sphere rotates with the stem to realize the opening and closing action. The opening and closing part of the gate valve is a sphere with holes, which rotates around the axis perpendicular to the channel to achieve the purpose of opening and closing the channel. Gate valves are mainly used for opening and closing pipelines and equipment media.
The types of flange gate valves are relatively diversified, and they can be divided into floating gate valves, fixed gate valves, elastic gate valves and oil seal gate valves according to their structural forms, direct energy gate valves, angle gate valves and three-way gate valves according to their channels, and three-way gate valves can be divided into T-shaped and L-shaped ones. According to the connection square work, it can be divided into threaded connection, flange connection and welding connection. According to the driving mode, stainless steel pneumatic gate valve, stainless steel electric gate valve and manual gate valve can be used.
The main advantages of flanged gate valves are as follows:
1. It has simple structure, small relative volume, light weight and easy maintenance.
2. Good sealing performance;
3. Suitable for regular operation, quick and portable opening and closing.
4. Low fluid resistance;
5. Without restriction of installation direction, the flow direction of medium can be arbitrary.
6. No vibration and low noise.
The working principle of flange gate valve is that it can make the valve smooth or blocked by rotating spool. The flange gate valve has the advantages of light switch, small volume, large caliber, reliable sealing, simple structure, convenient maintenance, and the sealing surface and spherical surface are often in closed state, so it is not easy to be eroded by medium. Therefore, it has been widely used in various industries.
It is also because of the great advantages of flanged gate valves and the diversity of their types that it is predicted that flanged gate valves will be the most important product in the development of gate valve industry in the next few years. In addition, with the continuous improvement of people's living standards, stainless steel valves also play a huge role in the civil field, and the market is expanding.