Piping engineering is a specialised branch of engineering dealing with design & layouts of piping network along with the Equipments in a process plant.
These layouts from a complete blue print of the plant & are used for plant construction at site. The most important factors to be considered’ are process requirements, safety, operability, maintenance, compliance with statutory requirements & economy.
This activity is carried out prior to start the detail engineering to ensure availability of all the required process data by all engineering groups. This includes the following:
1) Process data required converting P & ID’s to piping layouts like a proper identification of valves, strainers, In-line instruments,
2) Utility summery giving utility consumption for each equipment with duty conditions like pressure, temperature etc.,
3) Conceptual equipment layout drawings for process plant reflecting the process constraints.
4) Process data sheets for equipments.
5) Hazardous area classification etc..
Design planning:
Following information is required for planning the various design activities:
1) Contract instructions,
2) Project design basis & scope of work,
3) Basic engineering Documents.
4) Site design data including facilities around the plot,
5) Contour & survey drawing,
6) Applicable codes, standards & statutory regulations,
7) Project schedule & network,
With all this data plan the detail engineering activities.
Basic engineering documents:
These mainly cover the following documents:
- Plot plan;
- Equipment layouts
- Pipe rack study sketches;
- Study piping layouts;
- Piping specification;
- Utility distribution diagrams;
- Line list & critical line list;
Details engineering documents:
These mainly covers the following documents:
1) Piping layouts drawings;
2) Material take off (MTO / BOM) for piping items;
3) Nozzle orientation for fabricated equipments;
4) Stress analysis;
5) Piping isometric drawings;
6) Piping support drawings;
7) Fire fighting specification
8) Drawings for statuary approvals,
Other activities:
These mainly cover the following documents:
1) Review of drawings for machinery & other brought-outs;
2) Review of drawings for special piping items;
3) Specification for bellows, spring, hangers etc.;
4) Specification for insulation & painting of equipments & piping items;
5) Updation of P&ID’s based on detailed engineering,
6) Scheme for the erection of equipments in consultation with site engineer