Valtron Forge & Fittings is a leading manufacturer, supplier, stockist, and exporter of premium quality Buttweld Pipe Cap in India. We offer a comprehensive range designed to meet international standards and the demanding requirements of industrial piping systems.
Our buttweld caps permanently seal the end of a pipeline while withstanding full line pressure, providing a smooth ellipsoidal closure with no crevices or dead legs.
A Buttweld Cap is an ellipsoidal (torispherical) end closure welded directly to the pipe end. Unlike threaded plugs, the welded cap provides a permanent, hermetic, full-pressure seal suitable for hydrotesting, future extensions and end-of-line terminations.

Permanent, leak-proof closure for pipe ends
Ellipsoidal profile withstands full line pressure
Smooth internal surface with no crevices or dead legs
Uniform wall thickness matching the connecting pipe schedule
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 Pipe Cap |
| 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) |