Flat welding flange is a kind of disc parts, the most common in the pipeline engineering, flanges are used in pairs. In pipeline engineering, the flange is mainly used for pipe connection. In need of connecting pipes and all kinds of installation of a flange, the low pressure pipe flange can use silk, the use of more than 4 kg pressure welding flanges. By sealing point between two slices of butt weld flange, bolt. And then have different thickness and different stress of flange use different plug.
Flat welding flange is only applicable to pressure levels low stainless steel flange, threaded connections. The fatigue life of flat welding flange is only about a third of the butt welding flange, subjected to internal pressure and the performance of flat welding flange, stainless steel flat welding flange though the price is cheaper than stainless steel threaded flange. Easy to damage the flange surface and cause the deformation of the flange surface, cannot be used in under the action of alternating stress, stainless steel threaded flange is used in the occasion of galvanized steel pipe and cast iron flanges can't welding.
