reducing elbow
Variable diameter elbow, also known as reducing elbow, is an industrial pipe fitting that connects pipes of different diameters and achieves directional turning. It belongs to the material forming engineering technology in the field of metal pressure processing. Its materials cover categories such as carbon steel, alloy steel, stainless steel, and low-temperature steel, and comply with standards such as GB/T12459 and ASTM/ASME. It is widely used in pipeline systems in the fields of petroleum, chemical, and nuclear power.
This product is manufactured through cold deformation processing technology, using elbow blanks cut into V-shaped mouths and then pressed into shape. It is divided into production methods such as pushing, forging, and casting. Its curvature radius is divided into long radius (R=1.5D) and short radius (R=1.0D), which can support standard angles such as 45 °, 90 °, 180 ° and customized specifications. It has technical advantages such as low mold cost, short manufacturing cycle, and convenient welding and assembly, and is suitable for engineering needs with different pressures and fluid parameters
The production process of reducing elbows mainly manifests in the following aspects:
1. We need elbow blanks as raw materials, which can save mold costs and also provide elbows of any diameter.
2. The billet is an elbow billet, so the workmanship is simple, the accuracy is easy to ensure, and the assembly and welding are convenient.
3. Due to the above two reasons, the manufacturing cycle can be shortened and production costs can be greatly reduced.
Material of reducing elbow
Carbon steel: ASTM/ASME A234 WPB, WPC
Alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911,15Mo3 15CrMoV, 35CrMoV
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel: ASTM/ASME A402 WPL3-WPL 6
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70
