Prefabricated and fabricated pipe spools cut, welded and NDT-tested to project isometrics, delivered ready for site installation.
Piping spools are pre-fabricated pipe assemblies — cut, bevelled, fitted and welded off-site to exact isometric drawings — that reduce field welding time and improve quality control versus stick-built piping.
| Material Grade | ASTM A106 Gr. B, A312 TP304/316L, A335 P11/P22 |
|---|---|
| Size Range | 1/2" NB to 48" NB |
| Schedule | SCH 10S to SCH XXS |
| Design Code | ASME B31.3 / B31.1 |
| Weld Standard | ASME IX qualified WPS/PQR |
| Testing | RT / UT / DPT / MPT, Hydro-test to 1.5x design pressure |
| Item | Type | Size Range | Wall Thickness | Standard |
|---|---|---|---|---|
| Straight Spool | Seamless | 1/2" – 12" NB | SCH 10S – SCH 160 | ASME B36.10 / B36.19 |
| Straight Spool | Welded (ERW/EFW) | 14" – 48" NB | SCH 10 – SCH 40 | ASME B36.10 |
| Reducing Spool | Seamless / Welded | 1" – 36" NB | As per schedule | ASME B16.9 |
| Flanged Spool | Seamless / Welded | 1/2" – 48" NB | Class 150 – 2500 | ASME B16.5 / B16.47 |