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Function and processing method of butt welding flange

The main functions of butt welding flanges are divided into the following categories: 1. In case of pipeline failure, it is easy to disassemble and test. 2. Connect the pipeline and keep the pipeline in good sealing performance; 3. If ...

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Precautions for flat welding flange in use

Users should pay attention to the following matters in the use of flat welding flange products: 1. In order to prevent the eye corrosion caused by the heating of the flat welding flange cover, the welding current should not be ...

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Optimal design of long weld neck flange for pressure vessel

Optimal design of long weld neck flange for pressure vessel

The long weld neck flange of pressure vessel is optimized through two specific examples, and the effects of cone neck height and flange thickness on the three main stresses of flange axial stress, radial stress and tangential stress are analyzed. The calculation results show ...

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Selection of heat exchanger type and scaling treatment method

Selection of heat exchanger type and scaling treatment method

Selection of heat exchanger type and scaling treatment method 1. When the temperature difference is large, floating head heat exchanger, U-shaped tube heat exchanger, stuffing box heat exchanger and sliding tube sheet heat exchanger can be selected. When the shell ...

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How to install weld neck flange and flat welding flange

How to install weld neck flange and flat welding flange

Flange is a common part in piping system. They are mainly used to connect shafts and shafts or to connect two devices. In general, flanges are used with gaskets and bolts. The purpose is to fix two pipes, pipe fittings or equipment on the flange, ...

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Influence of forging on metal structure and properties of forged flanges and its defects

Effect of forging on microstructure and properties of metal In forging production, in addition to ensuring the required shape and size of forged flanges, it must also meet the performance requirements of parts in the process of use, which mainly include: strength ...

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Sealing principle and characteristics of flat welding flange

flat welding flange

What is a flat welding flange? A flat welded flange is a type of flange that is joined to a vessel or pipe by a fillet weld. It is an arbitrary type of flange. According to the degree of integrity of the connection between ...

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Processing Method and Manufacturing Process of Flat Welded Flange

Flat welded flange

Flat welded flange is a kind of flange connected with fillet weld of container or pipeline. It belongs to arbitrary flange. According to the integrality degree of the connection between the flange ring and the straight cylinder section, the integral flange ...

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Selection criteria for materials used in non-standard flanges

The non-standard flange for materials used for non-standard flanges refers to non-metallic materials with a refractoriness of not less than 1587 °C. It should be adopted according to the product design requirements and should comply with the current relevant national ...

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What is the difference between the diameter DN and De?

DN DN refers to the nominal diameter of the pipe. Note: This is neither the outer diameter nor the inner diameter; it should be related to the imperial unit in the initial development of the pipeline engineering; it is usually ...

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