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What are the connection methods of flange ball valves?

Zhejiang Lizhi Metal Products Technology Co., Ltd. 2025.06.23
Zhejiang Lizhi Metal Products Technology Co., Ltd. Industry News

1. Flange butt welding connection

Flange butt welding is a commonly used flange ball valve connection method. It connects the ball valve and the pipeline by welding. The connection is tight and not easy to leak. It has high connection strength and sealing. However, the butt welding connection method has high requirements for the pipeline system. The straightness and end surface flatness of the pipeline must meet certain standards. It is suitable for high-pressure, high-temperature, and large-scale pipeline systems.

2. Flange to flange connection

The flange to flange connection method is to connect the ball valve and the pipeline with flanges. The pipeline and the ball valve are connected using sealing gaskets and bolts between the flanges. It has the characteristics of easy disassembly and assembly. This connection method is suitable for some factories with poor pipeline straightness and more pipeline system equipment, and occasions where frequent disassembly and maintenance are required between the ball valve and the pipeline system.

3. Flange to pipe thread connection

The flange to pipe thread connection method connects the ball valve and the pipeline thread, and the sealing gasket is embedded between the flange and the flange thread. This connection method is suitable for some relatively small pipeline systems, which are convenient to operate and can meet some occasions with relatively simple working conditions.

There are many other flange connection methods, mainly depending on the specific construction environment. Choose the appropriate connection method according to actual needs to achieve better construction results. The connection effect of the flange directly affects the use effect, so the connection method must be considered when connecting the flange, so that we can have a better use effect to reduce the occurrence of safety accidents.

They are valve and flange connection ends. Many valves and flanges are connected according to the effect and purpose. The good thing is that the connection effect is good when connected; otherwise, it is easy to leak and easily cause wear and tear on the connection between the valve and the flange. You can also debug the installation of these devices to ensure that there is no problem with the debugging, and verify their use.