What are the properties of flat welding flanges?
Date:
2024-08-27
When welding flat welding flanges, only one-sided welding is required, and the inner mouth of the pipe and flange is not required. The welding device for welding flanges requires flange double-sided welding.
When welding flat welding flanges, only one-sided welding is required, and the inner mouth of the welding pipe and flange is not required. The welding device of the welding flange requires double-sided welding of the flange. Therefore, flat welding flanges are generally used for low and medium pressure pipelines, and butt welding flanges are used for the connection of medium and high pressure pipelines.
Butt welding flange is generally at least PN2.5MPa, the use of butt welding is to reduce stress concentration. Therefore, the installation cost, labor cost and auxiliary material cost of welding flange are higher due to one more process. The characteristics of flat welding flange: flat welding flange not only saves space, reduce the weight.
It is important that the joint does not leak and has an excellent sealing function. The size reduction is due to the reduction of the diameter of the seal, which will reduce the cross-section of the sealing surface. Secondly, the flange gasket has been replaced by a sealing ring to seal the matching of the facing sealing surface.
The leading product "forging flange" belongs to the key basic material in the industrial "six-base" field. The company's existing main equipment includes: 2 2.5T forging hammers, 1 1200 ring rolling machine, 1 750 air hammer, 8 400 blanking machines, 42 lathes, 8 drilling machines, 4 3.5-ton forklifts, 4 typewriters, 5 transportation equipment, etc. The company produces 5000 tons of flanges and 1000 tons of forgings annually. It mainly produces series flanges of German standard DIN, American standard ANSI B16.5, British standard BS4504, Japanese standard JIS, Italian standard UNI, Australian standard AS and Chinese standards GB, HG, Jb and other national standards. The varieties include high neck (WN), sliding sleeve (SO), socket (SW), lap joint (LJ), blind plate (BL), thread (TH), flat plate (PL) and so on, specifications from 1/2 "(DN15), to 48" (DN1200), and can undertake the user needs of non-standard flange and a variety of gears, bearings, modules and other forgings.
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2024-08-27
86-13935008913(Fan Hongwei)
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