The welding of large flanges is a part that connects the pipe to the pipe. It is connected to the pipe end and sealed with a gasket. The welding of large flanges is also called welding flange. The welding flange has holes and bolts make the two flanges tightly connected. It is a disc-shaped part ...

Hebei Haihao Group has finished an order of ASTM A182 Gr F347 weld neck flange(WN flange) order from Russia. Thus let’s learn more about this material. Grade 347 is an austenitic steel alloy with the addition of a stabilizing element i.e. Niobium. Niobium, when added to stainless steel all ...

Socket welded flange (SW Flange) is a popular type of pipe flange originally developed for small-size high pressure piping.Socket welded flanges are made similar to slip on flanges.However, the socket welded flange of the inner pocket allows for a smooth hole and better fluid flow.During interna ...

The finish on the flange face requires a specific roughness to ensure that this surface be compatible with the gasket and provide a high quality seal, which is measured as an Arithmetical Average Roughness Height (AARH) and determined by the standard used.For example,in ANSI B16.5 and EN1092-1 s ...

The sealing structure of the high-pressure flange lens pad is as follows: the sealing surfaces on both sides of the lens pad are spherical surfaces, the beveled surface of the tube end contacts the tapered sealing surface, and the angle between the tube end and the lens pad is about 20 degrees. ...

Chamfering,as the name implies,is to pour out the angle,generally 90 degrees into 45 degrees. Chamfering is a term used in mechanical engineering. For example, when drilling on a board, the hole wall and the board surface are 90 degrees right angle after completion. Chamfering is to make a small ...

Both blind flanges and spectacle blind flanges are used to isolate a section of pipe or equipment when they need to be inspected or removed from a piping system.But they are different.Let’s see what’s the difference between them? Blind flange and spectacle blind flange have different ...

Sometimes we call lap joint flange as loose flange which used in conjunction with a “Lap Joint Stub End”.Their dimension is same as other flanges. They are widely used in oil field, offshore, water system,shipbuilding,natural gas,electric power,and pipe projects. Lap joint flange or ...

Hebei Haihao Group has finished an order of ASTM A182 F321 weld neck flange order from Russia. Grade 321 is an austenitic stainless steel alloy that is similar in its chemistry to grade 304 stainless steel. However, what separates the SS 321 and grade 304 is the addition of titanium and the cont ...

People are wondering 300lb socket welding flange with Schedule? As we know that Pipe Fittings have different description of pressure ratings. The pressure ratings of Socket Weld Fittings are 3000, 6000, 9000 that defined as LB or Class. And for butt weld fittings which are Sch40, Sch80 and so on ...

The application of flanges plays an important role in many aspects, including petrochemical industry, energy industry, scientific research and military industry and other sectors of the national economy. However, in the reactor of the oil refinery, the production environment where the flange is ...

Do you know what to do after the flange rusts? Large stainless steel flanges will rust in general environment, mainly on any surface, free iron will rust and cause corrosion of stainless steel. Therefore, it must be cleared. Floating powder can generally be removed with the dust. Some have stron ...