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Detailed Engineering Solutions

Equipment Sizing and Specification

We produce process datasheets and specifications for your static and rotating equipment

Technical overview

Equipment Sizing
and Specification

Equipment sizing and specification turns your process simulation outputs into procurement ready engineering documents. When equipment is under specified it arrives undersized or over designed, and poorly written datasheets generate expensive vendor queries and commissioning rework. Our team produces process datasheets and procurement specifications to API, ASME, and TEMA standards for static equipment, heat exchangers, pumps, compressors, and packaged units, complete to the point where you can issue the invitation to bid.

Equipment Sizing and Specification Overview
Engineering process

Equipment Sizing and Specification workflow

Process Duty Definition

Extract equipment duty from simulation output, define design conditions, flow compositions, and pressure/temperature envelope.

Sizing & Type Selection

Apply API, ASME, and TEMA sizing methods, select equipment type, configuration, and capacity margins.

Mechanical Design Coordination

Coordinate nozzle loads, support type, material grade, and corrosion allowance with mechanical discipline.

Datasheet Authoring

Prepare process datasheets to API/ASME/TEMA data sheet format, ready for procurement and vendor submission.

Procurement Specification

Compile ITB technical specification, vendor pre qualification criteria, and commercial evaluation matrix.

Vendor Review & FAT Support

Review vendor engineering documents, attend factory acceptance tests, and issue punch list sign off.

Equipment Sizing and Specification Scope
Scope of work

Every deliverable from basis to handover

Complete Equipment Sizing and Specification scope covering every calculation, drawing, specification, and construction support activity.

Process datasheet authoring for vessels, columns, exchangers, pumps, and compressors
Equipment sizing using API, ASME, and TEMA code methodologies
Mechanical design coordination across nozzle loads, support type, and corrosion allowance
Material selection for corrosion service, HIC and SSC, and temperature extremes
Integration of insulation, tracing, and painting specifications
Compilation of the procurement specification and the invitation to bid technical package
A technical evaluation matrix for vendor offers with deviation review
FAT and SAT witnessing and the final as built update of the datasheet
Engineering outcomes

Outcomes of Equipment Sizing and Specification

Design Margin and Material Selection
  • Specifies equipment with adequate design margins
  • Aligns the mechanical design with the process duty
  • Strengthens material selection for the service
  • Supports relief and overpressure design
API, ASME, and TEMA Code Defence
  • Follows the API, ASME, and TEMA codes
  • Documents material and design certification
  • Supports regulatory inspection
  • Produces documentation that withstands client and AHJ scrutiny
Vendor Quality and Commissioning Readiness
  • Reduces equipment failure frequency
  • Supports realistic inspection and maintenance programmes
  • Improves the quality of your vendor selection
  • Strengthens your commissioning capability
Capex and Lifecycle Maintenance Savings
  • Avoids the cost of over specified equipment
  • Reduces lifecycle maintenance cost
  • Improves vendor pricing through clear specification
  • Supports capex optimisation
Standards & references

Codes & standards we work to

API 660 / 661 (heat exchangers)API 610 (centrifugal pumps)API 617 (compressors)ASME Sec VIII Div 1/2TEMA standardsAPI 650 / 620 (tanks)IEC 60034 (motors)IBR 1950 (Indian Boiler Regulations)IS 2825 / 803 / 4503 (BIS Pressure Vessel / Tank / HX)CEA Regulations 2010 (India)NEC India (National Electrical Code)API / ASME / TEMAAPI 2000 (Tank Venting)BS EN 13458 / 13530 (Cryogenic Vessels)
When to engage

Triggers that signal the need

FEED and detailed engineeringThe start of procurementVendor selectionEquipment replacementA capacity expansionA material upgrade
Industries served

Where Equipment Sizing and Specification applies

Oil & Gas, Upstream

Wellheads, separators, gas compression, FPSO topsides, produced water systems.

UpstreamOffshoreFPSO
Refineries & Petrochemicals

Distillation columns, reactors, heat exchangers, storage spheres, LPG handling.

RefiningPetrochemical
LNG & Gas Processing

Cryogenic exchangers, liquefaction trains, BOG compressors, storage and sendout.

LNGCryogenic
Specialty Chemicals

Reactive systems, batch reactors, solvent handling, runaway reaction scenarios.

ReactiveBatch
Power Generation

Boilers, HRSGs, steam headers, hydrogen systems, ammonia SCR units.

PowerHydrogen
Pharma & Food

Sterile vessels, CIP/SIP, pressure fermenters, solvent recovery, spray dryers.

PharmaFood & Bev
What we deliver

Tangible deliverables

  • Process datasheets for each item of equipment
  • Mechanical design coordination notes
  • A material selection report
  • Procurement specifications
  • An invitation to bid technical package
  • A vendor evaluation matrix
Get Started

Ready to start your project?

Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.