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What is a metal spiral wound gasket

What is a metal spiral wound gasket? metal spiral wound gasket is a kind of gasket which is widely used at present. It is the gasket with the best resilience in the semi-metal gasket. It is made of V-shaped or W-shaped thin steel strip and various fillers. High temperature, high pressure and adapt to the conditions of ultra-low temperature or vacuum. By changing the material combination of the gasket, the chemical corrosion of the gasket can be solved by various media. The structural density can be made according to the different locking force requirements. The main body and the accurate […]

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What are pipe fittings

What are pipe fittings? Pipe fittings are general terms for components in the piping systems that function as connection, control, direction change, split, seal, and support. According to different processing methods, it is divided into four categories, namely butt welding pipe fittings (both weld and no weld), socket welding and threaded pipe fittings, flanged pipe fittings.  Common classification of There are many types of pipe fittings, which are classified according to the use, connection, materials, and processing methods. By purpose By connection Socket weld pipe fittings Buttweld pipe fittings Threaded pipe fittings Outlet pipe fittings By material Standards of pipe […]

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What are Stamping Elbows

What are stamping elbows? The stamping elbow is formed by punching a half-shaped elbow with a stamping die of the same material as the pipe, and then welding the two half-ring elbows in pairs. Due to the different welding standards of various types of pipes, it is usually fixed by semi-finished products by group-to-spot welding. The on-site construction is welded according to the grade of pipe welds. Therefore, it is also called two-half welding elbows. Because the stamping elbow has good comprehensive performance, it is widely used in chemical engineering, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, […]

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What is a ERW pipe

What is a ERW pipe? ERW pipe (also called ERW steel pipe) is the abbreviation Electric Resistance Welded Pipes. Electric resistance welding refers to a group of welding process (including spot and seam welding) that produce coalescence of faying surfaces where heat to form the weld is generated by the electrical resistance of material combined with the time and the force used to hold the materials together during welding. ERW steel pipes and tube are available in various qualities, wall thicknesses, and diameters of the finished pipes. 1 Specification 3 Production Process 5 Issues and defects 2 Applications 4 Technical Requirements 6 Difference Specification of ERW […]

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What is thin-walled steel pipe

What is thin-walled steel pipe? A steel pipe having a ratio of the outer diameter of the steel pipe to the wall thickness of more than 20 is referred to as a thin-walled steel pipe. Thin-walled steel pipe thin-walled steel pipes are all cold drawn. Among them, carbon steel , low alloy steel, alloy steel thin wall pipe is suitable for general structure and mechanical structural parts; thin wall fluid steel pipe is used for conveying general fluid; stainless steel thin wall pipe is used for chemical, petroleum, light industry, food , mechanical instrument, etc. Industrial heat-resistant containers, conveying pipes and mechanical structural parts. Steel pipe specification method: outer diameter * wall thickness (mm) […]

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What is thick-walled steel pipe

What is thick-walled steel pipe? Thick wall steel pipe, the steel pipe The diameter and wall thickness of the steel tube ratio is smaller than 20 is called the thick wall steel pipe. Mainly used for drilling, pipe for petrochemical industry Cracking tube , Boiler tube And bearings and car, tractor, aircraft with high precision tube structure. Brief introduction Standard parameters Welding technology Technological process Maintenance How to identification thick-walled steel pipe Brief introduction The general use of thick wall steel pipe hot rolling technology, if it is a unit of measure to distinguish words, then, generally, the wall thickness / diameter equal to 0.05 is a […]

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What is a seamless steel pipe

What is a seamless steel pipe? A seamless steel pipe is a circular pipe having a hollow section and no seams around it. The seamless steel pipe is made of carbon steel, alloy steel, stainless steel ingot or solid tube blank, and then is made by hot rolling, cold rolling or cold drawing. Seamless pipes are considered superior to welded pipes as they are built using monolithic steel billets, with intrinsic mechanical strength, without seam welds. 1 Characteristics 2 Classification 3 Manufacturing process 4 Material 5 Standard 6 Dimension 7 Applications 8 Quality testing Characteristics of seamless steel pipe Seamless steel pipe for the use of engineering […]

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Lap Joint Flange VS Slip On Flanges

What is a lap joint flange? A Lap Joint Flange (LJ flange/Loose flange) is a two piece device that is much like a weld-neck flange but also like a loose slip on flange. One piece is a sleeve called a ‘Stub-end” and is shaped like a short piece of pipe with a weld bevel on one end and a narrow shoulder on the other end called the hub. The hub is the same outside diameter as the raised face (gasket contact surface) of a weld neck flange. The thickness of the hub is normally about ¼” to 3/8″. The back face of the […]

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What is a gasket?

What is a gasket? The gasket is a material made of stainless steel, rubber or metal that is placed between the two planes to reinforce the seal, and a sealing member that is disposed between the static seal faces to prevent fluid leakage. It is usually used to prevent pressure, corrosion, and natural thermal expansion and contraction between two objects. Since the machined surface is not perfect, the gasket can be used to fill the irregularities. The gasket is usually made of sheet material such as mat paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass or plastic […]

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Fasteners exports ushered in transformation: high-end products cost hundreds o……

Fasteners are the most widely used and the most used mechanical basic parts, and are known as the “industrial rice”. At present, China has become a major fastener manufacturing country, and fastener production has ranked first in the world for many years. However, the product structure of China’s fastener industry is still unreasonable, the product grade is low and the added value is low, which makes it difficult to increase the price. Comparing the export data of fasteners between China and Japan, the export volume of the two countries is very close, which is 9.375 billion US dollars and 9.69 […]

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