Pipe Fabrication Misalignment Tolerances
All piping fit-ups shall be subjected to the following bore misalignment tolerance
A Variations in the indicated dimensions for Center to Face. Location of attachments etc, shall not exceed 3 mm. (Tolerance shall be cumulative)
B For Piping Bends having a radius equal to SIX times the diameter or larger variations in the finished pipe caused by bending including any folds and bulges shall not exceed ± 3% x Nominal Ø of the Pipe.
C Lateral translation of flanges in any direction from the indicated position shall not exceed 1.5 mm.
D Rotation of flanges from the indicated position as shown shall not exceed 1.5 mm.
E Aligment of flanges shall not deviate from the indicated position measured across any diameter more than 0.75 mm.
Other Pages
- Table of contents
- Scope, codes, standards and references
- General and specific requirements
- Abbreviations for piping specifications
- Valve tag numbering
- Standard installation detail - Utility Station
- Special fabricated larger diameter reducers
- Four weld 90° LR Miter elbow
- Two weld 45° LR Miter elbow
- Perforated temporary conical strainers
- T-Type strainers
- Drip ring
- Product sampler cooler
- Tolerances for pipe fabrication
- Line Blinds NPS 1/2 - NPS 60