Piping Design Engineering involves various activities such as preparation of Plot Plans, Equipment Layouts, Equipment 3D Modelling, Pipelines 3D Modeling, Isometrics Extraction, Checking. 3D Model Review, Piping Layouts etc. Typical manhours required for each of these activities are as follows.

Piping Specifications

Sr.	Activity / Unit	New	Update
1	Piping Layout Specification / PDB	40	10
2	Shop Fabrication Specification	40	10
3	Field Fabrication Specification	40	10
4	Tie Ins Specification	40	10
5	Geo-graphic Color Code Specification	40	10
6	Heat Tracing Specification	40	10

Direct 2D Cad Drawings

1	Plot Plan Drawing	100	80
2	Equipment Layouts	100	40
3	Piping Standards and Details Drawings / Per Drawing	40	10
4	Manual Piping Layout Drawings / Per Drawing	140	New
5	Manual Isometrics : New Lines / Tie Ins	8	New
6	Revise Existing Piping Plan Drawings	40	NA
7	As Built Piping Plans – Manual	20	NA
8	Piping Heat Tracing Drawings	5	5

3D Modelling Workflow

1	3D Modelling : Equipments / Per Equipment	6	6
2	3D Modelling : Piping and Supports	4	4
3	Isometrics Extraction / Per Drawing	1	1
4	Piping Layout Extraction and Update / Per Drawing	40	New

Other Work

1	Vendor Drawings Checking/Drawing	1	NA
2	Non CAD Demolition Drawings	15	New
3	Piping Drawings/Models etc. Index	20	New
4	Designer Field Trips / Per Day	8	NA
5	Tie-In List / Per Tie In	1	1
6	3D Admin / CAD Co-ordinator / Per Week	40	NA
7	Isometrics Drawing Index / Per Isometric	1	1

Supervising Work

1

10% of Total Manhours Above

10%

NA