Descon’s engineering know-how is vested in various business areas across the company.
All engineering facilities are equipped with the current software packages in IT-based
environments and specialize in niches relevant to the core activity of a Business Area.
At the forefront is JGC Descon Limited (JDL), the joint venture company which acts as our
main engineering wing with capabilities in basic and detailed engineering for plant design.
For JGC Corporation, it is a key offshore Satellite Engineering Center for engineering of
major hydrocarbon energy projects in the region.
To enable value-addition in the field of equipment supply, the Manufacturing Business Area
in Pakistan has its own design group for engineering process plant equipment and coded items
mainly in accordance with ASME codes.
Equipment-oriented engineering capability is also present at a greater scale in Olayan
Descon, the joint venture company in Saudi Arabia. This operation also has extensive capabilities
for electrical design to support its mechanical and electrical shops.
The EPC Business Area is also evolving into an autonomous entity which has its own engineering
expertise for undertaking projects on a turnkey basis. These range from ‘Brownfield’ solutions
for existing plants to ‘Greenfield’ facilities pertaining to process, utilities and offsite areas.
The Infrastructure projects Business Area has developed its own in-house design group for projects
related to water reservoirs and irrigation channels. Descon is the only Pakistani company which has
the complete ‘design and construct’ capability for large infrastructure projects.
Process Design
The process design group can execute a wide range of basic and detailed engineering activities.
Basic Engineering:
- Process Simulation
- Heat and Material Balances
- Process Flow Diagrams (PFDs)
- Piping and instrumentation Diagrams (P&lDs)
- Utility and Effluent Summary
- Hydraulic Calculations
- Heat Exchangers Thermal Design and Rating
- Equipment Sizing
- Process Data Sheets
- Cause and Effect Diagrams
Detailed Engineering:
- P&lDs (AFD to AFC)
- Utility Distribution Diagrams
- Fire Protection Systems
- Pressure Relieving. Flaring, and Depressurizing Calculations
- Operations Manuals (compilation)
- As-Built P&IDs
Piping Design
The piping design group specializes in the following:
- Plot Plans
- Conceptual Piping Studies and Layouts
- Piping Plans
- Isometrics
- Project Specifications / Procedures
- Bill of Materials / Bill of Quantities
- 3D Modeling with PDS
- Pipeline Design
Mechanical Design
The mechanical design group provides specifications, material selection, mechanical design, detailed engineering, and shop fabrication drawings for:
- Pressure Vessels
- Heat Exchangers
- Process Related Mechanical Equipment
- Storage Tanks and Silos
- LPG Road Tankers
Electrical and Instrumentation Design
wide range of electrical and instrumentation (E&I) design services are provided.
Electrical Design
- Area Classification Drawings
- Single Line Drawings
- Schematic and Wiring Diagrams
- Specifications and Data Sheets Cable Layouts and Routing Diagrams
- Communications Systems
- Fire Alarm Systems
- Heat Tracing Systems
Instrumentation Design
- Instrumentation Specifications and Data Sheets
- Logic / Loop Diagrams and Termination Drawings
- Hook-up and Installation Drawings
- Control Room layout and Arrangement Drawings
- Panel Specifications and Arrangement Drawings
- DCS and ESD Specifications
- Control Valve and Orifice Plate Sizing
Civil Design
The civil design group specializes in the following:
- Modeling using PDS
- Steel and Concrete Structures
- Industrial Facilities and Process Buildings
- Pipe Racks, Table Top Structures, and Elevated Structures
- Equipment Foundations
- Compressor and Turbines (including dynamic analysis)
- High Rise Buildings
- Elevated and Underground Tanks
- Underground Services for Plants
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