Valtron Forge & Fittings is a leading manufacturer, supplier, stockist, and exporter of premium quality Buttweld 180° Return Bend in India. We offer a comprehensive range designed to meet international standards and the demanding requirements of industrial piping systems.
Our 180° return bends completely reverse the direction of flow and are manufactured in both long radius and short radius patterns for heating coils, heat exchangers and compact piping loops.
A 180° Return Bend (U-bend) changes the flow direction by a full 180 degrees. Long radius returns have a centre-to-centre dimension of 3 times the pipe diameter (3D), while short radius returns measure 2D, allowing designers to build tight serpentine coil arrangements.

Complete 180° reversal of flow direction
Available in Long Radius (3D) and Short Radius (2D) patterns
Widely used in heat exchangers, heating coils and boiler piping
Uniform wall thickness and consistent bore throughout the bend
Bevelled ends as per ASME B16.25 for full-penetration welding
Available in all grades of stainless, carbon, alloy and nickel alloys
Suitable for high-pressure and high-temperature applications
| Parameter | Specification |
|---|---|
| Product | Buttweld 180° Return Bend |
| Manufacturing Standards | ASME B16.9, ASME B16.28, MSS SP-43, DIN 2605/2615/2616, EN 10253, JIS B2311 |
| Material Standards | ASTM A234, ASTM A403, ASTM A420, ASTM A815, ASTM B366 |
| International Codes | ASME, ASTM International |
| Size Range | ½” NB to 48” NB |
| Wall Thickness | Sch 5S to Sch XXS |
| Type | Seamless (up to 24”) & Welded / Fabricated |
| End Connection | Butt-Weld with bevelled ends as per ASME B16.25 |
| Inspection & Testing | PMI Testing, Hardness Test, Impact Test, Hydrostatic Test, Dimensional Inspection, Visual Inspection |
| Certification | Mill Test Certificate (EN 10204 3.1 / 3.2), Third-Party Inspection (TPI) |