Detailed Engineering

In the projects where investment decision has been already taken, detailed, integrated engineering deliverables are prepared in all disciplines (Process, Mechanics, Electricity, Instrument, Construction) that comply with international quality standards by creating harmony of field construction, purchasing and engineering phases.
It is aimed to create comprehensive engineering outputs for implementation, which is one of the most important factors for the project to be completed on a planned budget and on time.

All documents produced during the Front End Engineering and Design (FEED) phase are detailed and developed during Detailed Engineering Phase. Document delivery package is developed by including Site installation details in order to reach accurate constructability. Also Vendor details are integrated into the detailed engineering outcomes, integrated with the purchasing processes. Integrated with field application processes, it is aimed to create the ultimate as-built document library that the customer can use in operation and maintenance maintenance processes. The services provided within this scope are mainly but not limited to ;


  • Process Design Basis
  • Process Flow Diagram (PFD)
  • Operation Philosophy
  • Equipment List 
  • Process Datasheets
  • Heat and Material Balance
  • Fluid List 
  • Piping and Instrumentation Diagram (P&ID) 
  • Emergency Shutdown Diagram (ESD)
  • Cause &Effect Diagram
  • Operating Manual 

Civil, Structure and Architecture

  • Underground Services Layout 
  • Structural Steel Design, Calculations, Drawings and Shop Drawings
  • Buildings Architectural Drawings
  • Foundations Design, Calculations and Drawings 
  • Road And Paving Plan
  • Material Takeoff (MTO)


  • Plot Plan
  • Piping Design
  • 3D modeling (AVEVA, AUTOCAD PLANT 3D)
  • Pipe Stress & Flexibility Analysis
  • Pipe Support Design
  • Piping Detailed Drawings (Isometrics)
  • Material Takeoff (MTO) 


  • Mechanical Design Basis
  • Equipment Mechanical Datasheets
  • Tanks & Static Equipment Design and Erection Drawings
  • Mechanical Static & Rotating


  • Electrical Design Specification
  • Hazardous Area Classification
  • Single Line Diagram (SLD)
  • Electrical GA Drawing
  • Electrical Item Datasheets
  • Lighting Study
  • Earthing Study
  • Cable Sizing
  • Wiring List
  • Material Takeoff (MTO)

Instrumentation and Control

  • Instrumentation & Control Design Basis
  • Control & Safety Narrative
  • Instrument List
  • Instrument Datasheets
  • Instrument Loop Diagram
  • Hook-up Diagrams
  • Wiring Diagram
  • Control System Architecture
  • Material Takeoff (MTO)