EN10253-4 is a European standard that describes the specifications for pipe fittings, including bends, used in pipes for the transport of liquids and gases under pressure.
Specifications of EN10253-4 bends
EN10253-4 bends are available in a variety of sizes, wall thicknesses and materials to meet the requirements of different applications. The standard bend radius for EN10253-4 bends is 1.5 times the diameter of the pipe, but other bend radii such as 1D, 2D, 3D and 5D are also available depending on the specific application.
EN10253-4 bends are produced to a number of standards including EN 10217-1, EN 10216-1, EN 10216-2, EN 10216-3, EN 10216-4, EN 10217-2, EN 10217-3, EN 10217- 4, EN 10210-1, EN 10210-2 and EN 10220. The specifications for the production of bends include dimensions, tolerances, materials, mechanical properties, chemical composition and non-destructive testing.
Available materials
EN10253-4 bends are available in different material types, such as carbon steel, stainless steel, alloy steel, duplex stainless steel, super duplex stainless steel, nickel and copper alloys. The choice of material depends on the specific application, such as the chemical composition of the liquid or gas being transported, the pressure and temperature requirements and the environmental conditions.
Applications of EN10253-4 bends
EN10253-4 bends are used in a wide variety of industries including the oil and gas, chemical, food, pharmaceutical, power generation and construction industries. Bends are used to change the direction of flow in piping systems and to route piping systems around obstacles.
EN10253-4 bends are suitable for use in high pressure and high temperature applications where accurate and reliable performance is critical. These bends can be used in systems with liquids or gases, such as water, steam, oil, gas, chemicals and other media.
Manufacturing processes for EN10253-4 bends
EN10253-4 bends are manufactured using a variety of manufacturing processes including:
Seamless Manufacturing: Seamless bends are manufactured by cold drawing tubing to the desired bend radius and angle. This method ensures uniform wall thickness and excellent surface finish.
Welded Production: Welded bends are manufactured by bending a pipe with a weld seam. The tube is usually formed from sheet material welded into a tube. This process results in a slightly thicker wall thickness and a less uniform finish than with seamless bends.
Forged Production: Forged bends are produced by forging the pipe material to the desired bend radius and angle. This method ensures uniform wall thickness and surface finish, and the resulting bend has high strength and durability.
Surface treatments
EN10253-4 bends can be supplied with various surface treatments, such as sand blasting, pickling, polishing, zinc plating and nickel plating, to improve corrosion resistance and aesthetic appearance.
Conclusion
EN10253-4 bends are an essential part of piping systems for the transport of liquids and gases under pressure. These bends are available in different sizes, wall thicknesses and materials to meet the requirements of different applications. They can be produced by various manufacturing processes including seamless, welded and forged production methods. When selecting EN10253-4 bends it is important to consider the specifications and application requirements to ensure that the piping system functions safely and efficiently.
