Flange Connection Types | Silver Valley

Steel flanges are important components used to connect equipment such as pipelines and containers, and are sealed by bolts, welding, etc.

According to the connection method, they can be divided into flat welding flanges, butt welding flanges, threaded flanges, flange covers, loose flanges and blind flanges. According to the material, they can be divided into carbon steel flanges, stainless steel flanges and alloy steel flanges. According to the standard, they can be divided into national standard (GB), American standard (ANSI), German standard (DIN), etc.

Different types of steel flanges are suitable for different pressures, temperatures and media environments, and are widely used in petrochemical, electric power, construction and other industries.

Flange Connection Types For Sale Wholesale

Manufacturing process of steel flange

The manufacturing process of steel flange mainly includes three methods: forging, stamping and welding. Forged flange is formed by heating steel billet and forging. It has high strength and good toughness and is suitable for high pressure and high temperature environment.

Stamped flange uses a punch press to stamp steel plate. The process is simple and efficient, but the strength is relatively low.

Welded flange is welded with flange plate and short pipe, which is suitable for large diameter flange. Different processes are suitable for different working conditions to meet diverse industrial needs.

What are the flange connection methods?

Bolt connection: two flanges are tightly connected by bolts and nuts. It is suitable for most pipeline and equipment connections, easy to install and has good sealing.
Welding connection: the flange is fixed to the pipeline or equipment by welding, which is divided into flat welding flange and butt welding flange. Flat welding flange is welded on the outside of the pipeline, and butt welding flange needs to be welded after processing the groove, which has higher strength.
Threaded connection: the flange and the pipeline are connected by screwing, which is suitable for medium and low pressure pipelines and quick to install, but not suitable for high temperature and high pressure environments.

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