Process Diagrams (PIDs & PFDs)
At IGI, we create precise process diagrams (PIDs & PFDs) to help industrial clients document, optimize, and control their systems. These diagrams are vital for regulatory compliance, operator training, and long-term facility management.
Process & Instrumentation Diagrams (PIDs) show detailed relationships between piping, valves, instruments, and control devices, while Process Flow Diagrams (PFDs) provide a high-level overview of how materials and energy move through a system. Together, they form the backbone of process documentation, ensuring clarity and safety across every stage of operation.
Our drafting services ensure that both PIDs and PFDs are accurate, compliant with ISA and ASME standards, and formatted for usability by engineers, operators, and inspectors.
Understanding the Process
Developing process diagrams starts with gathering system data, equipment specifications, and process flow information. Our team translates this into scaled schematics that clearly illustrate flow paths, controls, and interactions.
We produce PIDs that detail components and safety systems, while PFDs simplify complex operations into clear, high-level diagrams. This dual approach ensures stakeholders have both the detail they need for operations and the overview they need for strategic planning.
Applications
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Food & beverage plants – Sanitary process line diagrams for inspections and compliance.
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Pharmaceutical and chemical facilities – Accurate documentation for FDA, GMP, and safety audits.
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Energy and utilities – Schematics for steam, gas, and power distribution.
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Training programs – Visual tools for onboarding operators and technicians.
Benefits of Updated & Complete Process Diagrams
Unclear or outdated diagrams can lead to costly mistakes, failed audits, or unsafe operations. With IGI, clients gain:
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Accurate, detailed documentation that prevents miscommunication.
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Compliance-ready drawings aligned with ISA and ASME standards.
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Safer operations through clear representation of control systems and safety features.
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Operational efficiency by simplifying troubleshooting, maintenance, and training.
Why IGI?
Clients rely on IGI because we combine drafting precision with a strong understanding of process industries. Our PIDs and PFDs are designed to be functional tools, not just technical documents — helping operators, engineers, and inspectors work with confidence. With us, your process diagrams become a foundation for compliance, training, and reliable operations.
Need accurate process diagrams for your facility? Contact IGI today to get PIDs and PFDs drafted with clarity and compliance in mind.