Non standard flange refers to the parts used when connecting pipes, pipes and valves. There are holes and bolts on it to tightly connect the two flanges. Non standard flange is widely used in many industries because of its excellent performance. It is one of the mechanical parts widely used in industrial equipment and production.

A. Flange types are divided according to national standards: integral flange, threaded flange, butt welding flange, flat welding flange with neck, socket welding flange with neck, butt welding ring with neck loose flange, plate flat welding flange, flat welding ring plate loose flange, flat welding ring plate loose flange, flanging ring plate loose flange and

Flange gasket is a kind of ring made of materials that can produce plastic deformation and have certain strength. It is resistant to high temperature, high pressure and corrosion, and has good compression rate and rebound rate. Most gaskets are cut from non-metallic plates, or asbestos rubber plates, asbestos plates, PTFE plates and polyethylene plates

The existence of dual phase steel flange restricts the growth of grains between dual phases. Dual phase stainless steel maintains fine grains, and the total area of grain boundary of dual phase stainless steel is larger than that of single-phase steel. Therefore, dual phase stainless steel has high strength, especially yield strength, ensuring certain plasticity

With the rapid development of social economy, industrial leakage has been perplexing many industrial managers. Industrial leakage is due to problems in the pipeline system, and the vast majority of pipeline system problems are due to problems in an important part of the pipeline system – flange. Flange is a part connected between shafts. It

Welding technology: 1. Tack welding Tack welding must be carried out by welders with corresponding qualification certificates. The surface and both sides of the base metal near the weld shall be uniform and smooth without burr, crack, oxide scale, rust, grease, water and other impurities. The thickness of the positioned welding seam shall not be

Neck flange, also known as long neck flange and neck flange, is a disc-shaped part, which is mainly used to realize the connection between pipelines. It has been widely used in petrochemical, urban water supply and power system. In recent years, with the planning and construction of UHV transmission line project of State Grid, the

Generally, large flanges have relatively large load bearing capacity and are not easily deformed in engineering. The key problem is thickness. The inside and outside diameters of large flanges are not a problem, but the thickness of flanges is the most difficult to process. Large flanges are easy to deform if they are too thin.

1. When the upstream surface is corrosive medium, the gap can be sealed with sealing materials. See the atlas of waterproof casing for the method; Installation drawing of flexible waterproof casing (type A). 2. flexible waterproof casing material: Bituminous hemp, polystyrene board, PVC foam board. 3. Sealing paste: polysulfide sealing paste, polyurethane sealing paste. 4.