Butt-weld pipe caps designed to close the end of piping systems and provide a permanent end termination. Available in carbon steel, low-temperature carbon steel, alloy steel and stainless steel according to project requirements.
A pipe cap is a butt-weld fitting used to close the end of a pipe or piping section. Once welded in position, the cap provides a permanent end termination.
Butt-weld pipe caps are commonly used for terminating piping runs, closing unused branches or pipe sections, and preparing piping systems for future connections where permitted by the project design.
Rhevon can source pipe caps for process piping, oil & gas, petrochemical, chemical, power, utility and general industrial applications.
Supplied according to required nominal size, schedule, material and applicable specification.
Pipe caps are selected according to pipe size, wall thickness, material and the applicable dimensional and manufacturing requirements.
The cap provides a closed termination to the end of the piping system. It is welded around the pipe circumference to form a permanent connection.
The formed end profile provides a curved transition from the pipe wall to the closed end. The exact geometry and dimensions depend on the applicable fitting standard.
The cap is selected to match the nominal pipe size and required wall thickness or schedule of the piping system.
Material selection can be matched to operating temperature, pressure, process media and applicable project specifications.
| Material | Typical Specification | Typical Application |
|---|---|---|
| Carbon Steel | ASTM A234 WPB | General Process · Oil & Gas |
| Low-Temperature Carbon Steel | ASTM A420 WPL6 | Low-Temperature Service |
| Alloy Steel | ASTM A234 WP11 / WP22 | High-Temperature Service |
| Stainless Steel | ASTM A403 WP304 / WP316 | Corrosive / Process Service |
Standard-wall reference cap lengths with matching pipe outside diameters.
| NPS | D(mm) | Ecap(mm) |
|---|---|---|
| ½ | 21.34 | 25.40 |
| ¾ | 26.67 | 25.40 |
| 1 | 33.40 | 38.10 |
| 1 ¼ | 42.16 | 38.10 |
| 1 ½ | 48.26 | 38.10 |
| 2 | 60.33 | 38.10 |
| 2 ½ | 73.03 | 38.10 |
| 3 | 88.90 | 50.80 |
| 3 ½ | 101.60 | 63.50 |
| 4 | 114.30 | 63.50 |
| 5 | 141.30 | 76.20 |
| 6 | 168.28 | 88.90 |
| 8 | 219.08 | 101.60 |
E is the standard-wall reference length.
Heavy-wall caps can require a different length; confirm the selected wall and corresponding ASME B16.9 cap length before ordering.
Product requirements can be reviewed against the applicable material specification, dimensional standard and purchase order requirements before supply.
Common questions about pipe cap specifications, sizing, materials and applications.
A pipe cap is used to close the end of a pipe or piping section. Butt-weld caps provide a permanent welded termination and are commonly used in industrial piping systems.
Butt-weld pipe caps are generally supplied according to applicable ASME B16.9 dimensional requirements, with the material grade specified separately according to the applicable ASTM material specification.
Provide the nominal pipe size, schedule or wall thickness, material grade, quantity and applicable standard. Project specifications, drawings or inspection requirements can also be included where applicable.
Pipe caps can be sourced in carbon steel, low-temperature carbon steel, alloy steel and stainless steel. The appropriate grade depends on the piping specification and service conditions.
Yes. Pipe caps can be included along with elbows, tees, reducers, stub ends, flanges, gaskets, fasteners and other piping components in a single Bill of Materials requirement.
Share the size, schedule, material, quantity and applicable specification. Mixed piping component requirements are also welcome.
