High Quality painting of Structures, Equipment and Piping Systems to avoid corrosion is essential for long life of a constructed plant. Various types of markings are also required to be painted all over the part of the plant.
|
Clause |
Details |
|
PNT-FAB-001 |
Painting Specification is prepared by Material Engineer to assure high quality painting work on the project as per international standards. |
|
PNT-FAB-002 |
Painting includes surface preparation, selection of paints, application of paints on external surface of piping and equipments. |
|
PNT-FAB-003 |
Un-insulated carbon steel pipes, fittings, valves, special items etc. require painting. |
|
PNT-FAB-004 |
Carbon steel ducts, furnaces and stacks require painting. |
|
PNT-FAB-005 |
All un-insulated equipments like columns, vessels, drums, heat exchangers, pumps, compressors, electrical panels, motors etc. require painting. |
|
PNT-FAB-006 |
All structural componets like steel members, platforms, ladders,handrails etc. required painting. |
|
PNT-FAB-007 |
Identification marks, color bands are also required to be painted. |
|
PNT-FAB-008 |
Painting over insulation cladding is required. (Marking). |
|
PNT-FAB-009 |
In some cases, painting under insulation also required for carbon steel piping. |
|
PNT-FAB-010 |
Plastic or plastic coated components do not required to be painted. |
|
PNT-FAB-011 |
Non-ferrous materials like Aluminium are not required to be painted. |
|
PNT-FAB-012 |
Final painting shouldbe done only after all tests are performed on the piping system. |
|
PNT-FAB-013 |
Various international codes and standards should be followed for painting. |
|
PNT-FAB-014 |
Surface preparation is critical to ensure clean surface so that paint film adheres securely to the surface. |
|
PNT-FAB-015 |
Various methods of surface preparation are used like Hand Tool Cleaning, Power tool, Blast Cleaning etc. |
|
PNT-FAB-016 |
Environmental factors such as Rain, Wind, Temperature, Humidity must be considered while painting. |
|
PNT-FAB-017 |
Normally primare should be applied within 4 hours of surface preparation. |
|
PNT-FAB-018 |
Paint is applied using brush, air spray equipment etc. as per relevent standards. |
|
PNT-FAB-019 |
Proper documentation regarding painting process must be maintained by the contractor and submitted to the client. |
|
PNT-FAB-020 |
Field safety and hygiene must be maintained at all times during painting work. |