Datasheet
Equipment or Instrument Datasheet
A datasheet is the EPC engineering deliverable that documents the design specification for an individual equipment item or instrument: design conditions, service conditions, performance requirements, material specification, and applicable codes. Datasheets are issued with the Material Requisition for vendor bidding and become the engineering reference for fabrication, inspection, and operation. Every equipment item, instrument, valve, and significant bulk material has a corresponding datasheet.
Full Definition
A datasheet is the structured engineering specification document for an individual equipment item, instrument, valve, or significant bulk material. The datasheet documents: design conditions (design pressure, design temperature, fluid composition, corrosion allowance), service conditions (normal operating pressure and temperature, flow rate, phase), performance requirements (capacity, head, efficiency, accuracy, response time), material specification (body material, trim material, internals), applicable codes and standards (ASME, API, NACE, IEC, ISA), and project-specific requirements. Datasheets are produced by engineering, issued with Material Requisitions (MR) for vendor bidding, and form the engineering reference for fabrication and inspection. See the instrument datasheet auto-population page for the Pathnovo automation.
Context & Detail
Equipment vs instrument datasheets
Equipment datasheets cover vessels (vessel datasheet), exchangers (exchanger datasheet per TEMA + datasheet format), pumps (pump datasheet per API 610 + datasheet format), compressors (compressor datasheet per API 617 + datasheet format), columns (column datasheet), tanks (tank datasheet per API 650 + datasheet format). Instrument datasheets cover transmitters (pressure, flow, temperature, level), control valves (per ISA + valve sizing), analysers, fire and gas detectors. The datasheet format is discipline-specific.
Datasheet lifecycle
Datasheets go through revisions similar to P&IDs: IFR (Issued For Review), IFA (Issued For Approval), IFC (Issued For Construction). After vendor bidding and TBE, the successful vendor's submitted datasheet becomes the as-fabricated datasheet (sometimes called Stamped or Reviewed datasheet). The vendor-submitted datasheet is signed off by engineering at PO award and serves as the construction and inspection reference.
Datasheet in vendor workflow
Datasheets feed into the Material Requisition (MR) issued to vendors. Vendors review the datasheet and submit their proposal with their own datasheet showing the equipment they propose to supply. Engineering reviews the vendor's datasheet through Technical Bid Evaluation (TBE) against the project datasheet specification. Deviations between project datasheet and vendor datasheet are tracked in the TBE Compliance Matrix.
Common datasheet formats
Equipment datasheets typically follow industry-standard formats: API 610 datasheet for centrifugal pumps, API 617 for compressors, API 660 for shell-and-tube exchangers, API 650 for storage tanks. Instrument datasheets follow ISA TR20 conventions plus project-specific extensions. Indian PSU projects often have PSU-specific datasheet templates layered on top of the international format conventions.
EPC Usage
- 01
Every greenfield refinery, petrochemical plant, fertiliser plant, and gas processing facility produces 1,000-10,000 datasheets covering vessels, exchangers, pumps, compressors, columns, control valves, transmitters, analysers, and fire and gas detectors.
- 02
Indian PSU refineries operate continuous datasheet maintenance: every equipment item and instrument carries a datasheet that is referenced for maintenance, modification, and replacement scope.
- 03
Major equipment packages (compressor packages, gas turbines, hydrocracker reactors) typically carry 50-200 datasheet revisions during the bidding and engineering cycle. Datasheet revision tracking is a critical project management artefact.
- 04
Brownfield revamp projects produce fresh datasheets for new equipment scope. Existing equipment datasheets (from the original commissioning era) may need digitisation if reference is required for modification scope.
- 05
Mid-EPC contractors produce datasheets at smaller scale but with the same accuracy requirements. Auto-population of datasheets from P&IDs and equipment specifications accelerates mid-EPC delivery.
- 06
Pharma and specialty chemical plants (which often run smaller equipment at higher unit precision) produce highly detailed datasheets reflecting GMP and FDA requirements alongside engineering specifications.
How Pathnovo Handles It
Pathnovo's instrument datasheet auto-population product auto-generates complete instrument datasheets from P&IDs and vendor specifications. The product reads ISA 5.1 tags from P&IDs, extracts service conditions and instrument type, and populates datasheet templates at 99.5% measured accuracy. Used by Indian EPC contractors and PSU refineries for greenfield datasheet production, brownfield datasheet digitisation, and mid-project datasheet revision tracking. Combined with instrument index automation, Pathnovo closes the gap between P&ID-level tag definition and datasheet-level instrument specification. See the engineering document intelligence pillar for the broader document AI workflow.
Frequently Asked Questions
What is a datasheet in EPC engineering?
A datasheet is the structured engineering specification document for an individual equipment item, instrument, valve, or significant bulk material. The datasheet documents design conditions, service conditions, performance requirements, material specification, and applicable codes. Datasheets are issued with Material Requisitions for vendor bidding and become the engineering reference for fabrication and inspection.
What is the difference between equipment and instrument datasheets?
Equipment datasheets cover vessels, exchangers, pumps, compressors, columns, and tanks per industry-standard formats (API 610 for pumps, API 617 for compressors, API 660 for exchangers, API 650 for tanks). Instrument datasheets cover transmitters, control valves, analysers, and fire and gas detectors per ISA TR20 conventions. The datasheet format is discipline-specific.
How many datasheets does an EPC project produce?
A typical greenfield refinery produces 1,000-10,000 datasheets covering vessels, exchangers, pumps, compressors, columns, control valves, transmitters, analysers, and fire and gas detectors. Petrochemical and fertiliser plants run 500-5,000 datasheets. Mid-EPC projects run 200-2,000 datasheets.
What does an instrument datasheet contain?
An instrument datasheet contains the ISA 5.1 tag, location (P&ID reference), service description, service conditions (flow rate, pressure, temperature, phase), instrument type (transmitter, controller, indicator), measurement range, accuracy and response time requirements, material specification, certification requirements (Ex-d, Ex-ia, SIL classification), power supply, signal type, and applicable codes.
Can datasheets be auto-populated from P&IDs?
Yes. Pathnovo's instrument datasheet auto-population product auto-generates complete instrument datasheets from P&IDs and vendor specifications. The product reads ISA 5.1 tags from P&IDs, extracts service conditions and instrument type, and populates datasheet templates at 99.5% measured accuracy.
What is the datasheet lifecycle?
Datasheets go through IFR (Issued For Review), IFA (Issued For Approval), IFC (Issued For Construction) revisions similar to P&IDs. After vendor bidding and TBE, the successful vendor's submitted datasheet becomes the as-fabricated datasheet signed off by engineering at PO award. The vendor-submitted datasheet serves as the construction and inspection reference.
What is the API 610 datasheet?
API 610 is the international standard for centrifugal pumps in process service. The API 610 datasheet is the standard format used to specify centrifugal pumps for refineries, petrochemicals, and chemical plants. The datasheet covers service conditions, performance requirements, material specification, mechanical seal selection, and applicable codes. Similar API standards cover compressors (API 617), shell-and-tube exchangers (API 660), and storage tanks (API 650).
Related Pages
Instrument Datasheet Auto-Population
Auto-generate datasheets from P&IDs at 99.5% accuracy.
Instrument Index Automation
Instrument index, I/O list, datasheet, loop diagram automation.
MR Package Assembly
Material Requisitions including datasheet packages for vendor bidding.
TBE Standard Reference
Technical Bid Evaluation against project datasheet specifications.
ISA 5.1 Standard
Instrumentation symbology and tag convention used in datasheets.
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