Specializing in the R&D, manufacturing, and sales of pressure piping components since 1975.
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中文High-Pressure Pipe Fitting Analysis: High-Pressure Elbow Manufacturing Process
The manufacturing process for bent pipes begins by welding a multi-faceted ring shell with a polygonal cross-section—or a closed, multi-faceted sector shell at both ends. Once the inside of the bend is filled with a pressurized medium, internal pressure is applied. Under this pressure, the polygonal cross-section gradually transforms into a circular shape, ultimately forming a fully round ring shell. This technique is ideal for producing large-sized, high-pressure bends where the ratio of the centerline diameter to the inner diameter of stamped bends exceeds 1.5—and it’s the perfect method for crafting sizable, standard-compliant bends. High-pressure bends are widely used in piping systems across industries such as petroleum, natural gas, chemical processing, hydroelectric power, construction, and boiler applications. Importantly, this process eliminates the need for pipe billets as raw material, significantly reducing costs associated with pipe-making equipment and molds, while also enabling the production of bends with virtually any desired length.
2019-12-03
The manufacturing process of elbows begins by welding a multi-faceted ring shell with a polygonal cross-section—or a closed, multi-faceted sector shell at both ends. After the inside of the elbow is completely filled with a pressurized medium, internal pressure is applied. Under this pressure, the polygonal cross-section gradually transforms into a circular shape, ultimately forming a seamless circular ring shell. This technique is particularly well-suited for producing large-sized high-pressure elbows where the centerline diameter exceeds 1.5 times the inner diameter of stamped elbows, making it the ideal method for crafting sizable, code-compliant bends. High-pressure elbows are widely used in piping systems across industries such as petroleum, natural gas, chemical processing, hydroelectric power, construction, and boiler manufacturing. Importantly, this method eliminates the need for tube stock as a raw material, significantly reducing costs associated with pipe-making equipment and molds. Additionally, it enables the production of large-diameter elbows with relatively thin walls while maintaining flexibility in design. Moreover, this process not only shortens the manufacturing cycle but also dramatically cuts down on production expenses. Notably, no specialized equipment is required, making it especially convenient for on-site fabrication of large, code-compliant elbows. Since the starting material can be either a flat plate or a developable curved surface, material cutting becomes straightforward, ensuring high precision during fabrication. Assembly and welding are also simplified, further enhancing efficiency. In essence, high-pressure elbows—known for their exceptional durability under high pressure—are ideally suited for critical applications in industries like petroleum, natural gas, aerospace, shipbuilding, chemical engineering, hydroelectric power, fire protection, construction, and boiler systems, among others.
Specializing in the R&D, manufacturing, and sales of pressure piping components since 1975.
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