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ASTM A234 WPB return bend

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How is an ASTM A234 WPB Return Bend utilized in mining and mineral processing operations?

This unique pipe fitting reaps numerous advantages for the mining and mineral processing sectors. An ASTM A234 WPB return bend features a piping section stemming from the top of the piping. After running horizontally, it returns – hence the name. These fittings help prevent scaling and harmful mineral deposits in the system. These sectors are also prone to sediment accumulation – a problem this bend can tackle.

Customers can order these bends in many sizes: from 1/2 inch to over 3 inches; customized sizing should be readily available.

A234 WPB carbon steel 180 degree return bend manufacturer in India

ASTM A234 WPB return bend

How do test certificates ensure the quality and compliance of an A234 WPB carbon steel 180 degree return bend?

We highly recommend siding with a high-quality and tested A234 WPB carbon steel 180 degree return bend even at a slight premium. Manufacturers share a Mill Test Certificate (MTC) with customers, stating the fitting is appropriate the application. The MTC validates that the product conforms to the desired chemical and mechanical properties (per your order).

Your supplier will provide the results of non-destructive tests in the MTC. These include hydrostatic testing, magnetic particle inspection, and ultrasonic examination. Further tests, like pulsating pressure and dye penetration, may also get performed for specific purposes.

Clients should also examine the raw materials certificate and radiography report. More quality assurance certificates can get sourced in consultation with accredited third-party agencies.

ASME SA 234 Grade WPB 180 degree u bend for pipelines

Can the cold bending method be used to manufacture an ASME SA 234 Grade WPB 180 degree U bend?

Cold bending is a popular production method for an ASME SA 234 Grade WPB 180 degree U bend. It relies only on a bending force to create the curved radius. It does not employ heat. Instead, it exerts the required force on the metal and gets completed after reaching the desired dimensions.

Generally, U bends of small to medium diameters use cold bending. Those with larger diameters may employ heating. These components regularly get used in heat exchangers, condensers, and petrochemical plants.

ASTM A234 WPB Return Bend specification

Bend Type Wall thickness Manufacturing process
Return bend SCH 5 to SCH XXS
  • Cold Rolling
  • Hot pushing
Material Bending methods Sizes
ASTM A234 WPB
  • Cold bending
  • Hot bending
  • 1/2"-24" (seamless)
  • 2"-36" (welded)
Bends Radii Types Delivery Time
75 / 100 / 250 / 300 / 500 / 800 / 1,000 / 1,500 mm
  • Semaless
  • Welded

7-14 days
Schedule Surface treatment Value Added Services by Mesta Inc
Sch 5 to Sch XXS
  • Sand blasting
  • Roll blasting
  • Pickled or polished
  • Hot Dipped Galvanizing
  • Electro Polish
  • Epoxy & FBE Coating

Types of ASTM A234 WPB return bend

ASTM A234 WPB return bend

ASTM A234 WPB return bend

A234 WPB carbon steel 180 degree return bend

A234 WPB carbon steel 180 degree return bend

ASME SA 234 Grade WPB 180 degree elbow

ASME SA 234 Grade WPB 180 degree elbow

ASTM A234 Gr WPB 180 degree elbow available in FBE coating

Grade WPB buttweld return bend

Grade WPB buttweld return bend

Grade WPB buttweld return bend are available in various schedule and sizes

Grade WPB buttweld return bend dimensions

Grade WPB buttweld return bend dimensions

NPS Dia. Nominal O.D. at Bevel Center-to-Center (O) Back-to-Face (K)
LR SR LR SR
1/2 15 21.3 76 　 48 　
1 25 33.4 76 51 56 41
1-1/4 32 42.2 95 64 70 52
1-1/2 40 48.3 114 76 83 62
2 50 60.3 152 102 106 81
2-1/2 65 73.0 190 127 132 100
3 80 88.9 229 152 159 121
3-1/2 90 101.6 267 178 184 140
4 100 114.3 305 203 210 159
5 125 141.3 381 254 262 197
6 150 168.3 457 305 313 237
8 200 219.1 610 406 414 313
10 250 273.0 762 508 518 391
12 300 323.8 914 610 619 467
14 350 355.6 1067 711 711 533
16 400 406.4 1219 813 813 610
18 450 457 1372 914 914 686
20 500 508 1524 1016 1016 762
22 550 559 1676 1118 1118 838
24 600 610 1829 1219 1219 914
Carbon steel ASTM A234 WPB return bends for smooth flow

How is the integrity and quality of a fabricated ASTM A234 Gr WPB 180 degree bend ensured?

Fabrication in an ASTM A234 Gr WPB 180 degree bend may involve bending, folding, flanging, etc., with a CNC machine. This material is weldable and formable. Fabricating can help meet the needs of different applications that need a U bend to control sediment deposits.

Using an accurate machine and following tight tolerance standards helps maintain integrity.

How is the dimensional accuracy of an ASTM A234 Grade WPB buttweld return bend ensured during manufacturing?

Return bends generally get produced via cold bending. A salient advantage of this technique is no material loss (a concern that may exist with hot induction). The thickness of the pipe does not change since heating is not involved. It helps maintain the dimensional accuracy of the component.

Strict quality control measures and subsequent inspection also help to guarantee compliance in an ASTM A234 Grade WPB buttweld return bend.

What are the benefits of Carbon steel ASTM A234 WPB return bends?

The purpose of these bends is to minimize sediment accumulation in pipelines. Carbon steel ASTM A234 WPB return bends don’t let material deposits collect over time and obstruct the flow. They are essentially U-bends because they introduce a 180-degree directional change.

  • A direct and helpful approach to minimize pipeline blockage
  • Useful in several sectors, including mining and chemical processing
  • Easy to install and suitable for different piping systems
  • Available in different dimensions