Any radius | Any angle | Tangents to your length
Standard elbows come in fixed angles and have no straight ends. A custom pipe bend is made from one length of pipe to your drawing: the radius, the bend angle and the straight tangent at each end are all chosen for your routing. That removes field cuts and extra girth welds, and keeps welds away from the bent section. Send us your isometric or a sketch with the dimensions and we will confirm what can be made in one piece.
| Radius | 3D – 10D, or any radius to drawing |
| Angle | Any, e.g. 7.5°, 22.5°, 37°, 90°, 180° |
| Tangents | Equal or unequal, to order |
| Size | 2" – 48" NPS |
| Forms | Single, multiple and 3D (compound) bends |
| Ends | Bevelled, plain, or matched to your pipe |
| Documents | EN 10204 3.1 std, 3.2 on request |
| Dimension | What to tell us |
|---|---|
| Size and wall | NPS or OD, and the minimum wall needed after bending |
| Radius | e.g. 5D (say if D is nominal size or OD), or radius in mm |
| Angle | Bend angle in degrees |
| Tangent A and B | Straight length at each end, measured from the tangent point |
| Plane / rotation | For two or more bends: angle between bend planes and the straight length between bends |
| Tolerances | Your project tolerances on angle, tangent length and ovality, if different from the code |
| Code | ASME B16.49, ISO 15590-1 / EN 14870-1, EN 13480, or your project specification |
Each girth weld you remove saves welding, NDT, coating repair and inspection time on site. A bend with long tangents often replaces an elbow plus two pup pieces, which is three fewer welds per change of direction. On pipelines with many direction changes the saving is significant.
A tangent is the straight length of pipe at each end of a bend, between the end of the bent section and the pipe end. Tangents make fit-up and welding easier and keep the girth weld away from the bent zone. They can be equal or different lengths.
Yes. Induction bends can be made at any angle up to 180°, for example 11.25°, 22.5° or 37°. Standard elbows only come in 45°, 90° and 180°, so custom angles avoid mitre cuts on site.
It depends on the size, wall and bending machine set-up, and the bending code may set a minimum. Send us the size and the tangent you need and we will confirm whether it can be made in one piece.
Yes, where the pipe length and geometry allow. We need the radius and angle of each bend, the straight length between bends and the rotation between bend planes.
A drawing or isometric extract is the quickest way, but a list of size, wall, grade, radius, angle and tangent lengths is enough for a first quotation.
Reply from our Mumbai sales office, usually within one working day. You can attach drawings by email to marketing@arshyafittings.com.
