The main role of flat welding flange

a, connecting the pipeline and maintaining a good sealing performance of the pipeline;

b. If there is a problem with a certain section of pipeline, it is convenient to replace a certain pipeline;

c. The pipeline is faulty, which is easy to open and detect.

Flat welding flange: suitable for steel pipe connection with nominal pressure not exceeding 2.5MPa. The sealing surface of flat welding flange can be made into three types: smooth, concave and convex and grooved.

Features of flat welding flange: Flat welding flange not only saves space, reduces weight, but more importantly ensures that joints will not leak and has good sealing performance. The reduced size of the compact flange is due to the reduced diameter of the seal which will reduce the cross-section of the seal face. Secondly, the flange gasket has been replaced by a sealing ring to ensure that the seal faces the sealing surface.

Flat welded flanges are threaded (wired) flanges and welded flanges. Low-pressure small-diameter wire-bonded flanges, high-pressure and low-pressure large diameters are all welded flanges. The thickness of the flanges of different pressures and the diameter and number of connecting bolts are different. Depending on the level of pressure, the flange pads are also available in different materials, from low pressure asbestos pads, high pressure asbestos pads to metal pads. The flange connection is easy to use and can withstand large pressures.

Flat welded steel flange: suitable for carbon steel pipe connection with nominal pressure not exceeding 2.5MPa. The sealing surface of flat welded flange can be made into three types: smooth type, concave and convex and grooved type. Smooth type flat welded flange The application amount is large. It is mostly used in the case where the medium condition is moderate, such as low pressure non-purified compressed air and low pressure circulating water, and its advantage is that the price is relatively cheap.