Buttweld Cap
Dished and flat profile caps. Carbon, stainless, and alloy steel. Seamless and welded construction. Sizes from 1/2" to 48". Full pressure rating.
Available Products
| Material | Grade | Sizes | Schedule | Standard |
|---|---|---|---|---|
| Carbon Steel | ASTM A234 WPB | 1/2" - 48" | SCH 40, 80, 160, XXS | ASME B16.9 |
| Carbon Steel | ASTM A234 WPC | 1/2" - 24" | SCH 40, 80, 160, XXS | ASME B16.9 |
| Stainless Steel | ASTM A403 WP304/304L | 1/2" - 24" | SCH 10S, 40S, 80S | ASME B16.9 |
| Stainless Steel | ASTM A403 WP316/316L | 1/2" - 24" | SCH 10S, 40S, 80S | ASME B16.9 |
| Alloy Steel | ASTM A234 WP5/WP9/WP11/WP22/WP91 | 1/2" - 24" | SCH 40, 80, 160, XXS | ASME B16.9 |
Pressure & Temperature Ratings
All buttweld fittings are rated per ASME B16.9 pressure-temperature tables. Pressure ratings match the corresponding pipe schedule — e.g., a SCH 80 fitting matches the pressure rating of SCH 80 pipe of the same material and size. For specific pressure-temperature data, contact our team or refer to the product catalog.
Other Fitting Products
Buttweld Elbow (90° / 45°)
Buttweld elbows for changing pipe direction. Available in long radius and short radius configurations.
Buttweld Tee
Buttweld tees for creating branch connections. Available in equal and reducing configurations.
Buttweld Reducer
Buttweld reducers for transitioning between pipe sizes. Concentric and eccentric options available.