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Advantages and disadvantages of flat welding flange

Advantages and disadvantages of flat welding flange

Flat welded flanges are mainly used for gas valves and natural gas pipelines. Because the short neck can improve the rigidity and carrying capacity of the flange. Flat welded flanges are used for general media. Flat welding flange with neck is suitable for flammable, explosive, corrosive and toxic places. The sealing surface of flat welding flange can be convex surface, concave convex surface and tongue and groove surface. They are different in structure, sealing effect and strength. Flat welding flange is generally called flat plate, also known as lap welding flange. The connection between the flat welding flange and the pipe is to insert the pipe into the flange inner hole to the appropriate position before the lap welding. The characteristics of flat welding flange: flat welding flange not only saves space, reduces weight, but also ensures no leakage at the joint and good sealing performance. The reason for the reduced size of the compact flange is the reduced diameter of the seal, which will reduce the cross section of the sealing surface. The advantages of flat welding flanges are as follows:

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Applicable scope and purpose of welding flange

Applicable scope and purpose of welding flange

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

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Characteristics of butt welding flanges

Characteristics of butt welding flanges

Butt welding flanges can be connected to the pipe to maintain the sealing performance of the pipe. The butt-welding flange is easy to replace the pipe section, easy to remove and check the pipe condition, and easy to seal the pipe section made of carbon steel. The flange is the connection of two large diameter pipes. The device is also called a carbon steel flange and usually consists of two flange parts and several fastening bolts.

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Characteristics and sealing principle of flat welding flange

Characteristics and sealing principle of flat welding flange

A flat-welded flange is a flange that is connected to a vessel or pipe by fillet welding. It can be any flange. According to the integrity of the flange ring and straight barrel section at the time of design, check the integral flange or loose flange respectively. The ring of flat welding flange has two kinds of neck and non neck. Compared with the neck welding flange, the flat welding flange has a simple structure and less material, but its rigidity and sealing performance are not as good as the neck welding flange. Flat welded flanges are widely used in the connection of medium and low pressure vessels and pipelines.

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