Scope and use of butt welding flange


Release Time:

May 12,2023

Butt welding flange is a kind of pipe fitting. Welding flange, also known as split flange, refers to a flange with a neck tube and a round tube transition and a butt connection with the pipe. Flanges are components that connect pipes to each other and to the ends of the pipes. There are holes in the flange, and the bolts make the two flanges tightly connected.

Scope and use of butt welding flange

Butt welding flange is a kind of pipe fitting. Welding flange, also known as split flange, refers to a flange with a neck tube and a round tube transition and a butt connection with the pipe. Flanges are components that connect pipes to each other and to the ends of the pipes. There are holes in the flange, and the bolts make the two flanges tightly connected. Butt welding flanges and their gaskets and fasteners are collectively referred to as flange joints. Flange joints are an essential part in equipment and equipment components as well as in piping design, pipe fittings and valves.

Scope of application of butt welding flange:

It has corresponding rigidity and elasticity requirements, is not easy to deform, has good sealing performance, and is widely used. Reasonable butt weld thinning transition. The distance between the joint and the joint is relatively large, and the joint has no temperature deformation after welding. It adopts a complex bell-shaped structure, which is suitable for pipelines with large pressure or temperature fluctuations or high-temperature, high-pressure, low-temperature pipelines. It is generally used for the connection of pipelines and valves with a PN greater than 2.5MPa. Welding flanges can also be used to transport expensive flammable and explosive items in medium pipelines.

Use of butt welding flanges:

Flanges are mainly used for pipeline connections. Various flanges are installed on the pipelines to be connected. Threaded flanges can be used in low-pressure pipelines, and welded flanges can be used for pressures above 4kg. Add spacers between the two flanges and bolt them tight. The different bolts used mainly depend on the thickness of the butt welding flange under different pressures. When the pump and valve are connected to the pipeline, the parts of these devices are also made into corresponding flange shapes. Also known as flange connection. All connecting parts that are bolted and closed on the outside of two planes are generally called "flanges". Butt welding flanges should be marked according to the nominal diameter, nominal pressure, sealing surface form code, specified steel pipe series code and standard number.

Butt welding flanges have different production specifications in use and production. According to the corresponding specifications, the actual application value and effect of the butt flange can be guaranteed. Large-scale application of high-pressure butt welding flanges: boilers, pressure vessels, petroleum, chemical, metallurgy, machinery, food and other industries.

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