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Currently, the US is found to be in the leading position in the pipe fittings industry. Following by US, the second and third are Japan and Germany. China ranked fourth. Followed by China are United Kingdom, France, Korea, Italy, China Taiwan and Canada.


As the pipe fittings are easy to make, demand and competition in the market are fierce. A high degree of concentration of the valve industry is formed in some places, such as Wenzhou in China. But it does not represent a monopoly.


Pipes (pipe, piping or pipeline), are divided into welded pipes and seamless pipes (seamless pipeline). Diameter and thickness are separated into different levels. For example: 4 "SCH80, 4 inch pipes, 80 thickness levels, an outer diameter of 114.3mm, a wall thickness of 8.56mm.


Flanges (Flange), are separated into commonly used high-neck flange (weld neck flange), plug welding flange (Socket weld flange). Based on distinct bearing capacity, flange is divided into flat flange (FF-Flat Face), convex flange (RF-Raised Face) and RTJ-Ring Type Joint.


Elbow (Elbow), have long-necked ones and short-necked ones. Long-neck ones are identified as "L", short neck identified as "S". Elbows and pipeline are of the same nominal diameter and nominal thickness of grade classification. Common elbows are referred 90 degree elbows and 45 degree elbows.


Different tees have its own advantages and disadvantages, and the different tees have different characteristics, generally customers who need tees are from the oil industry, chemical industry, shipbuilding, electric power, construction, etc.


Customers who are interested in tees are from the oil industry, chemical industry, shipbuilding, electric power, construction and the like. Different tees have its own advantages and disadvantages, and different tees have different characteristics. Figuring out different tees, understand their respective characteristics and shortcomings, then we can make the best use of the tees.


Tee in pipes are divided into mechanical tee, reducing tee, mechanical tee, and common tees. Two types of reducing tee are grooved and threaded tee. The mechanical tee is of two kinds: grooved and threaded tees. Two types of the common tees: grooved and threaded tees.


Reducer, are separated into concentric reducer (Concentric Reducer) and eccentric reducer (Eccentric Reducer). Its size and the nominal thickness have to be in conformity with pipes.


There are other pipe fittings terms, such as long radius elbow, short radius elbow, coupling, full coupling, half coupling, and reducing coupling.


There is considerable room for expansion in the pipe fittings industry at the present. The main factors of the expansion include the growing energy demand, sustained increase in global population and urbanization in developing countries, the process of industrialization after the financial crisis. This trend has been growing steadily for years. Nowadays, the world's major economies have already entered the economic recovery cycle. The pipe fittings industry was showing a steady upward growth therewith.

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