A long neck flange (LWN) and a welding neck flange have similar features, however, a long neck flange has a slightly longer neck. Long neck flanges on columns and barrels are used as nozzles in many industrial businesses. Equal LWN barrels and heavy barrel ...

A stainless steel elliptical head is a product used to plug stainless steel pipes. It is a product used as a container after the pipe has reached its end or two elliptical heads are welded to the two ends of a round pipe. According to the different geometr ...

The insulation gasket kit is a specially designed gasket package that use to prevent galvanic corrosion of flange face in a piping system when the material of connecting flanges is different. Here, in the image, you can see the complete kit of insulation g ...

Olet fittings are a family of forged products used to make 45 or 90 degrees integrally reinforced branch connections (deviations) from a run pipe (also called header pipe) to a branch pipe (outlet pipe). The common types of branch fittings are Weldolet, Th ...

The nipple is a kind of fitting commonly used in industrial pipeline connection.There are common screw nipples, which are divided into double head outer thread, single head outer thread and flat head outer thread. In addition, there are also nipples connec ...

In piping, a gasket is a sealing material placed between the connecting flanges to form a static seal that maintains a leak proof seal under all operating conditions.Different types of gaskets are used to realize leak proof sealing between pipeline flanges ...

The prevention of cold cracks is mainly caused by reducing the diffusion hydrogen content, improving the structure, and reducing the welding stress. Specific measures are: Preheating before welding and slow cooling after welding. This not only improves the ...

Pipe bend has the same function as pipe elbow. But their bending radius are different. The radius of bend is larger than 1.5D, and could be 2D bends, 2.5D bends, 3D bends, 4D bends, 5D bends, and 10D bends. Carbon Steel Pipe Bend are available in ASTM A234 ...

Steel pipe coupling is a kind of pipe fitting used for pipe connecting in industry,and coupling is a kind of short pipe between two pipes,which also named outer connector.And it is widely used in construction,industry and agriculture industries. And what i ...

Corten steel is high strength, low alloy weldable structural steel with exceptional weathering resistance. Corten steel is becoming more popular by roll formed product end-users. Its unique look and naturally oxidizing finish make it especially desirable f ...

Basic principle of bimetal composite steel pipe: the outer base pipe is responsible for pressure bearing and rigid support of the pipe, and the inner liner pipe is responsible for corrosion resistance, wear resistance and other functions. According to the ...

Last article we know what are bimetal composite pipes,we know bimetal composite pipes are an economical and reliable new type of pipe.There are the advantages of bimetal composite pipe: Corrosion resistance: it can effectively prevent secondary pollution a ...

Bimetal composite pipes take carbon steel or low alloy steel pipe as base pipe and CRA pipe as layer or lining pipe by patented technology and special equipment.It is a special metallurgical or mechanical process to ensure a tight bond between the base pip ...

The production of spiral welded steel pipes can show the advantages of high quality and efficiency. The production capacity of a spiral welding pipe unit is equivalent to 5-8 straight seam welded pipe equipment.How to make multiple production lines of pipe ...

Spiral welded pipes are widely used in natural gas, petroleum, chemical, electric power, heating, water supply and drainage, steam heating, pressure steel pipes for hydropower stations, thermal power generation, water sources and other long-distance pipeli ...

Stainless steel has excellent characteristics such as unique strength, high abrasion resistance, superior anticorrosive performance, and resistance to rust. Therefore, it is widely used in chemical industry, food machinery, mechanical and electrical indust ...

When customers call and ask about products, they often say, “i want good fittings, not defective products.” Finished pipe fittings are difficult to distinguish from good or bad quality from the appearance, and they are only known during use. Th ...

ERW pipe is made by rolling low carbon structural steel or low alloy structural steel strip into tube blank according to certain helix angle, and then welding the tube seam. It can produce large diameter steel pipe with narrow steel strip. The specificatio ...

Hebei Haihao Group is one of biggest manufacturers specialized in the production of pipes, pipe fittings and flanges. In 2014 we exported 2,000pcs boiler tubes to Portugal. Boiler tubes material is ASTM A179, seamless. At that time we delivered the high qu ...

Liquid applied epoxy lining is one important lining type.It has excellent water and chemical resistance properties. They can be applied at various thicknesses and are factory applied to provide a dielectric lining. Bonded dielectric lining systems can be a ...