Flat welding flange connecting device: Flat welding flange is two large diameter pipe with American standard flange connecting device, usually two flanges plus a number of fastening bolts.Low carbon steel has good plasticity and low strength, and it will become hard after adding the right amount of carbon. It is generally used in pipes to reduce the strength of plasticity. In that case, loosen the bolts and rotate the pipes on both sides, and then tighten them to facilitate the disassembly and assembly of pipes.

Flat welding flange connection is generally used in the pipeline, in that case, loosen the bolt can rotate the pipeline on both sides, and then tighten it can be more convenient to disassemble the pipeline.The material is carbon steel flange called carbon steel flange;Flat welding flange connection method is also the simplest connection method between cast iron pipe and steel pipe.The French blind plate can be used to inspect the opening of the mouth.Flanged connection is suitable for pipe fittings with diameter from Φ50 to 315mm.Matching flange its performance characteristics: non - rigid connection, dismountable, tensile resistance.Flanged joints are usually used as removable fittings in low pressure transmission lines.

In recent years, China ranks first in the production of flat welded flanges in Asia. Flat welded flanges have threaded connection (wire connection) flanges and welded flanges.Low pressure small diameter wired flange, high pressure and low pressure large diameter are welded flange, flange thickness and connecting bolt diameter and number of different pressures are different.