Dongsheng Flange
东升法兰

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Matters needing attention when processing large diameter flanges

When processing large-diameter flanges, we must first understand that such a component itself may have certain defects in the welding process. If the welding defects of stainless steel flanges are serious, they are basically Manual grinding is used for grinding. This grinding method is used to make up for it. Relatively speaking, a series of grinding marks may be produced, which may cause uneven surface more or less, which directly affects the entire equipment. Beautiful!
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Difference analysis between butt welding flange and special-shaped flange

The sealing surface of butt welding flange can be made into three types: smooth type, concave-convex type and tongue-and-groove type. The application of smooth butt welding flange is large. Generally, it is mostly used when the medium conditions are relatively moderate, such as low-pressure unpurified compressed air and low-pressure circulating water. Its advantage is that the price is relatively cheap. Butt welding flanges are suitable for pipelines with large fluctuations in pressure or temperature or pipelines with high temperature, high pressure and low temperature, and are also used for pipelines that transport expensive, flammable and explosive media. The welding method used when connecting the flange and the pipeline of the butt welding flange is butt welding. The welding seam is similar to the welding of pipelines and pipelines. Generally, argon arc welding is used for the bottom of the small pipe diameter, and the cover surface is manually welded. Only use double-sided welding.

Structural classification of stainless steel flanges

Structural classification of stainless steel flanges 1. Smooth type: used for stainless steel valves with low pressure. It is more convenient to process; 2. Concave-convex type: high working pressure, medium-hard washers can be used; 3. Tongue and groove type: gaskets with larger plastic deformation can be used, which are widely used in corrosive media and have better sealing effect;