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Product Code: PS-01

Piping Spools

Prefabricated and fabricated pipe spools cut, welded and NDT-tested to project isometrics, delivered ready for site installation.

Carbon SteelStainless SteelAlloy SteelASME B31.3100% NDT Available

Technical Information

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 GradeASTM A106 Gr. B, A312 TP304/316L, A335 P11/P22
Size Range1/2" NB to 48" NB
ScheduleSCH 10S to SCH XXS
Design CodeASME B31.3 / B31.1
Weld StandardASME IX qualified WPS/PQR
TestingRT / UT / DPT / MPT, Hydro-test to 1.5x design pressure

Applications

  • Refinery and petrochemical process units
  • Offshore and onshore oil & gas platforms
  • Thermal and combined-cycle power plants
  • Skid-mounted process modules
  • Marine and shipboard piping systems
  • Water and wastewater treatment plants
Prefabricated Spools
  • Straight-run spools with flanged or welded ends
  • Insulated and jacketed spool options
  • Cut to project isometric dimensions
Fabricated Assemblies
  • Multi-directional spools with elbows & tees
  • Instrument take-off and drain connections
  • Stress-relieved on request
Skid-Mounted Piping
  • Pre-assembled piping on structural skids
  • Reduces on-site erection time
  • Shipped test-ready with tags
ItemTypeSize RangeWall ThicknessStandard
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
Ferrous Materials
  • Carbon Steel — ASTM A106 Gr. B, A53 Gr. B
  • Stainless Steel — ASTM A312 TP304/304L/316/316L/321
  • Alloy Steel — ASTM A335 P5/P9/P11/P22/P91
  • Duplex / Super Duplex — ASTM A790 UNS S31803/S32750
Non-Ferrous Materials
  • Copper-Nickel — ASTM B466 (90/10, 70/30)
  • Titanium — ASTM B861 Gr. 2
  • Nickel Alloys — Inconel 625/825, Hastelloy C276
  • Aluminium — ASTM B241 (on request)
01
Isometric Review
02
Cutting & Bevelling
03
Fit-up & Welding
04
NDT Inspection
05
Hydro-Testing
06
Painting & Dispatch