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Process Module Sizes

Industrial Plant Design

Plant constructionAre you building or scaling up an industrial plant? EPIC adds value to your industrial plant design project by combining plant and unit operation knowledge, with experience in a wide variety of industries and applications. Combining our experience in industrial plant design with your intimate knowledge of your process, our plant design engineers develop a solution that meets your budget and timeline.

Our engineering and fabrication expertise is coupled with a unique modular approach. From equipment selection to construction management, coordinating the entire scope of the project is a complex process in which we excel. From piping specifications on every P&ID to managing subcontractors, we ensure every detail meets or exceeds your needs.

EPIC’s modular design approach saves an average of 24% time compared to traditional construction schedules. Your plant will make product sooner, and overall costs will be reduced.

STEP 1: Front-end Engineering for Industrial Plant Design

industrial plant designOur plant design engineers will fully extract the project scope, discuss potential challenges, and create a comprehensive project schedule up-front. This is a critical first step in developing your plant.

Most companies provide a basic quotation that doesn’t ensure project success. EPIC believes engineering detail is most important in the beginning of the project. We spend essential time up-front to provide accurate preliminary pricing and a design you can be confident with.

We leave it to you to decide how precise you want your number to be. We offer three levels of front-end engineering, with each step requiring more engineering but also returning increasingly accurate numbers:

  1. Rough Order of Magnitude (ROM) Quotes which include:
    1. Basic project scope
    2. Boundary limits
    3. +/- 50% ROM quote
  2. Refined Quotation’s
    1. +/- 15-5% estimate
    2. Project timeline
    3. Basic P&ID’s
    4. Equipment, instrument, and valve list based on budgetary quotes
  3. Fixed Bid Quotes
    1. A firm price to deliver the project (fixed bid price)
    2. Project timeline
    3. Basic P&ID’s
    4. Equipment, instrumentation and valve list based on specific details
    5. Quotation peer review
    6. Technical review
    7. Additional customer specified documents


To begin the process for your industrial plant design, contact EPIC today.

STEP 2: Detailed Design

P&ID for industrial plant designThe first part of detailed design includes a tightening of the numbers and scope of your project. One fixed bid price has been reached, the following begins:

  • Re-evaluation for further time/cost savings
  • Set key project milestones and dates
  • Finalize modular industrial plant design including:
    • Process automation
    • Mechanical and structural design
      • PFD’s
      • P&ID’s
      • Footing details
      • Shipment constraint planning
    • 2D and 3D models
      • CAD system development
      • Any process modeling that must be completed (ex. ASPEN HYSYS)
    • Additional drawing development
      • Auxiliary views
      • Detailed elevation drawings
      • Detailed plan drawings
      • General equipment and arrangement drawings
      • Isometric drawings

STEP 3: Equipment Procurement for Industrial Plant Design

Once our plant design engineers complete detailed engineering, we order equipment for your project. Equipment with long lead times, or key to project milestones, is ordered first. Equipment is selected upon lowest total lifetime cost, as opposed to lowest upfront cost.

SIDE-STEP: Process Safety & HAZOP Studies

If your process requires any safety study, (HAZOP for instance) they will be completed during design. The timing depends on your availability and the information needed to complete the design.

Let us design your next industrial plant – contact an EPIC plant design engineer today.

Step 4: Industrial Plant Construction


Industrial plant construction happens in our state-of-the-art fabrication plant. A compressed build timeline, higher quality construction and lower total modular fabrication costs are direct outcomes of the controlled, production-style environment. Parallel field upgrades happen simultaneously to industrial plant construction without interfering with each other, since plants are constructed in our shop as modules while site-upgrades happen at your manufacturing facility.

We employ skilled craftsmen that have honed exceptional skills in electrical wiring, welding, pipe-fitting, and equipment assembly. Our experienced crew has built hundreds of modules, and can work directly with the project engineer, since our fabrication plant is located on-site with our engineering offices. Our controls are also located on-site, and integrate all industrial plant controls while assembly progresses.

Step 5: Installation and Commissioning

Once off-site  industrial plant construction is complete, modules are fully FAT tested and then shipped to your site for installation. EPIC’s process experts install your new production plant and make sure it is fully integrated, both mechanically and electrically, into your facility. Process hookups, functional testing and the punch-list are completed and resolved. We fully train your plant operators on the full system, and we provide continuing support for any questions or concerns you may have going forward.

Contact an EPIC plant design engineer today to start your industrial plant design.


EPIC Modular Process Systems
4134 Meramec Bottom Rd
St. Louis, MO 63129, US