Pipe Bend Manufacturer & Supplier in Europe

What Exactly is Pipe Bend?

A pipe bend is a tool for changing the direction of fluid flow and producing an offset in the flow.. The significance of pipe bends lies in their ability to facilitate the movement of fluid in various directions, a necessity in modern pipelines. The types of pipeline bends are fashioned through hot and cold rolling procedures, including compression bending, rotary draw bending, roll bending, and mandrel bending. As a manufacturer and supplier of pipe bends, we offer a range of sizes to meet project requirements. It is imperative to identify the appropriate use of the Bend Dn150 for a successful operating system.

Why Pipe Bend Used In Pipeline?

The Steel Pipe Bend is a specialized component that is primarily intended to modify the flow characteristics within a pipeline. Unlike other pipe fittings, these bends do not necessitate welding and exhibit lower friction, resulting in a smoother flow. In complex piping systems, a 50mm Pipe Bend can effectively reduce routing pressure changes. Furthermore, these bends are straightforward to install and connect. The Schedule 40 Pipe Bends are highly flexible and exhibit exceptional thermal expansion properties, making them an excellent choice for various applications.

Why Use Bent Pipes?

The process of pipe bending enables complex piping systems to route materials while minimizing pressure changes. Due to the fact that most bent pipes do not modify the ends of the piping, they can be easily integrated into processing systems using conventional welding processes, flanges, or other connection methods.

Furthermore, the extensive range of pipe bend sizes and materials renders them appropriate for routing a diverse array of substances, including hot or caustic liquids, as well as maintaining pressure and movement in high viscosity liquids or those containing suspended solids. This is exemplified in the case of Oil Sands slurry lines, which contain a high concentration of silica sand.

What is The Pipe Bending Process?

The SS Pipe Bend machine uses a rotary draw to bend pipes. The pipes can be heated or not depending on their thickness and diameter. Mandrels are put inside the pipes and then they are bent to make the Stainless Pipe Bend. The machine must make sure that the pipe stays the same thickness and diameter throughout the bend. The mandrels stay inside the pipe to keep the diameter from getting smaller. But, the outside of the pipe may have some differences in thickness.

Buttweld Pipe Bends Price List

Production Process of Stainless Steel Pipe Bend

• The stainless steel pipe bend can be classified into three types, namely, the bending pipe, the punching pipe, and the welded pipe. These can be further divided into two types of bending, namely, cold bending and hot bending. When the stainless steel tube is subjected to pressure along the longitudinal direction for bending, the pipe wall thickness is reduced, while the lateral pipe is subjected to tensile, elongation, wall thinning, and tube deformation. The center of the pipe, however, remains unaffected. The cross-section of the stainless steel tube changes from round to oval. During the production of the bend, it is important to note that the minimum bending radius of the bend must meet certain standards when designing the piping system.
• In the process of cold bending the stainless steel pipe bend, the heating process should be slow and uniform to ensure the thermal conductivity of the pipe. Overheating and carburizing should be avoided. Bending technology is widely used in the field of boilers and pressure vessels, as well as in industries such as aerospace and shipbuilding. The quality of the pipe bend has a direct impact on the structural rationality, safety, and reliability of the product. Therefore, the quality of the pipe bend is critical, and the technical conditions of the pipe must be mastered.
• To obtain high-quality pipe fittings, a suitable mandrel is inserted into the bending process to avoid flattening and wrinkling of the stainless steel pipe bend. Due to the elasticity of the tube, the pipe bend will rebound when the bending force is removed. When determining the bending angle, it is important to consider increasing the angle.

What Makes Us The Premier Manufacturer And Supplier Of Pipe Bend In Europe?

We adhere to rigorous quality control protocols and standards to ensure superior surface and dimensional tolerances in the production of Pipe Bend. Our company holds ASME Quality and ISO 9001:2015 Certifications, positioning us as a prominent provider of Pipe Bend solutions made from carbon steel, alloy steel, and stainless steel on a worldwide basis. In addition to manufacturing top-tier stainless steel Pipe Bend, we are authorized distributors of ISMT and Jindal, enabling us to supply carbon steel and alloy steel Pipe Bend of exceptional quality.

Mechanical Properties of ASTM A234 Alloy Steel Wp5 Pipe Bend

Standard Pipe Bend Radius Chart

Common Pipe Bending Methods

• Cold Bending Methods
• Rotary Draw Bending:

  It is a process whereby a pipe or tube is bent through the use of a combination of dies and other components that operate in a rotary fashion. This rotary action draws the pipe or tube forward, resulting in the desired bend. Additionally, mandrels may be employed in the process of Rotary Draw Bending.

• Mandrel bending:

  It involves the insertion of a mandrel into a tube or pipe during the bending process, particularly when working with materials possessing thinner walls. This technique serves to prevent the occurrence of defects in the bend, such as rippling, flattening, or collapse.

• Compression Bending:

  The process of bending a pipe or tube involves the utilization of a stationary die, while a counter die is employed to bend the material around the stationary die.

• Roll Bending:

  This technique is employed in situations where there is a need for bends or curves with a substantial radius. It involves the passage of a pipe or tube through a set of three rollers arranged in a pyramid configuration, thereby achieving the desired curvature.

• Hot Bending or Induction Bending

Although there exist slight variations in different hot pipe bending techniques, the majority of them are categorized as induction bending. This process involves the precise heating of the pipe through an induction heating coil prior to the application of pressure to achieve the desired bend. Unlike cold bending methods, induction bending requires significantly less physical force and can produce bends of comparable or superior quality without the use of filler materials, mandrils, or other additions to prevent distortion. While it reduces diameter reduction at the bend site, induction bending results in some changes in pipe thickness. Typically, the intrados, or inner section of the bend, will become thicker, while the extrados, or outer section of the bend, will become thinner. This technique is primarily utilized in large diameter piping and tubing and long radius bends, but it also has applications in smaller piping diameters and short radius bends.

What is the Method for Determining the Radius of a 90-degree Bend in Stainless Steel?

The bends' angles commonly measure 90° and may possess either a short or long radius. The Stainless Steel Long Radius Bends are seldom encountered. The internal radius is determined by the formula [(Dw/2/2) + Dp2]/Dp x 2, where Dp represents the depth of penetration, and Dw denotes half the width of the die. The Stainless Steel Short Radius Bends are the most widespread and utilize formulas to estimate the radius. Nevertheless, the actual radii may differ in practical applications.

A Guide to Producing Long Radius Bends in Alloy Steel

The Low Alloy Steel Welded Pipe Bend is manufactured by either casting or bending a section of pipe within a die or roller setup. In instances where smaller diameter pipes are involved, the forming process may necessitate cold drawing. Conversely, High Alloy Steel Short Radius Bends can be cold formed. For longer radius bends, the process typically involves the use of a mandrel, preheating, and rolling over the rotary draws.