— Procurement Checklist for Instrumentation in EPC Projects
In EPC (Engineering, Procurement, Construction) projects, instrument procurement is a critical link between design and field installation. The scope typically includes temperature, pressure, level, flow, analytical instruments, control valves, actuators, instrumentation cables, cable glands, junction boxes, and more. Any omission can lead to schedule delays, cost overruns, or even safety incidents.
With nearly five decades of experience in instrument and cable manufacturing, Anhui Tiankang (Group) Co., Ltd. has long served large domestic and international EPC projects. Based on project practice, this article presents a practical instrument procurement checklist to help procurement managers, technical engineers, and project managers systematically control the entire procurement process.
1. Pre‑Procurement Preparation
| Check Item | Specific Requirements | Done ☐ |
|---|---|---|
| Complete technical documents | Instrument specification, datasheet, P&ID, I/O list, wiring diagram, installation drawing, technical specification (TSS) | ☐ |
| Procurement strategy defined | Identify long‑lead items, frame agreements, domestic/import split, spare parts strategy | ☐ |
| Approved vendor list (AVL) | Prepare and approve bidders list per owner requirements or company approved vendor list | ☐ |
| RFQ issued | Include technical attachments, commercial terms, delivery, payment terms, warranty | ☐ |
| Technical clarification completed | Clarify and confirm deviations and alternatives in writing | ☐ |
2. Vendor Qualification and Technical Evaluation
| Check Item | Evaluation Content | Done ☐ |
|---|---|---|
| Certificates | Business license, ISO9001, Ex certificate (CCC/ATEX/IECEx), CPA (if applicable) | ☐ |
| References | Supply record of similar projects, same conditions, at least 3–5 verifiable projects | ☐ |
| Manufacturing capability | Factory scale, capacity, key equipment, quality system (ISO9001, ISO14001, ISO45001) | ☐ |
| Technical compliance | Range, accuracy, output, material, Ex class, IP rating, process connection fully meet datasheet | ☐ |
| Certifications & reports | Valid Ex certificate, SIL certificate (if required), material certificate, test reports | ☐ |
| Delivery commitment | Stock availability, lead time for custom items, shipping mode (sea/air/land) | ☐ |
| After‑sales service | Site support, warranty period, response time, spare parts availability | ☐ |
| Price & commercial terms | Cost effectiveness, payment milestones, penalty, warranty retention | ☐ |
3. Purchase Order and Technical Attachment Confirmation
| Check Item | Notes | Done ☐ |
|---|---|---|
| Clear scope of supply | Tagged list, spare parts list, special tools, documentation list | ☐ |
| Technical attachment signed | Agreed technical specification, datasheet, drawings, ITP | ☐ |
| Acceptance criteria | Applicable standards (GB, IEC, ASME, API), sampling ratio, pass/fail rules | ☐ |
| Packing & marking requirements | Export packing (moisture proof, rust proof, fumigated case), shipping mark, tag label, packing list format | ☐ |
| Documentation requirements | Quality documents (certificate, material cert, Ex cert, calibration report), manual, outline drawing, wiring diagram | ☐ |
| Key milestones | Order confirmation, drawing approval, raw material inspection, in‑process inspection, FAT, shipment notice | ☐ |
| Third‑party inspection | Owner witness or third‑party agency (SGS, BV) required? | ☐ |
4. Manufacturing and Quality Control
| Phase | Check Item | Done ☐ |
|---|---|---|
| Order kick‑off | Kick‑off meeting held, technical clarification, production schedule, inspection points | ☐ |
| Raw materials | Material certificates (heat number, chemical composition, mechanical properties); traceability | ☐ |
| In‑process inspection | Machining dimensions, welding quality, PCB test, assembly records | ☐ |
| Factory acceptance test (FAT) | Per ITP: visual, dimension, insulation, dielectric strength, accuracy, response, seal, Ex test | ☐ |
| Third‑party witness | Notify owner or third party in advance; witness and sign test reports | ☐ |
| Non‑conformance handling | Record, correct, retest, close out | ☐ |
5. Packing, Marking and Shipment
| Check Item | Specific Requirements | Done ☐ |
|---|---|---|
| Cleaning & drying | Internal cleanliness; for oil‑filled instruments check oil level; desiccant placed | ☐ |
| Rust & moisture protection | Anti‑rust oil on exposed metal; sealed plastic bag with desiccant | ☐ |
| Packing strength | Suitable for long‑distance transport and multiple handling; wooden case ISPM 15 compliant (export) | ☐ |
| Marking clear | Shipping mark (project no., contract no., destination), tag label, handling symbols | ☐ |
| Packing list | Packing list inside matches outer marking; electronic copy sent | ☐ |
| Documents in box | Certificate, manual, calibration report, material certs in sealed plastic bag | ☐ |
6. Documentation and Digital Delivery
EPC projects typically require a complete digital documentation package. The following documents should be submitted before or shortly after shipment:
| Document Category | Specific Documents | Delivery Time |
|---|---|---|
| Quality documents | Certificate of conformity, material certificate (EN 10204 3.1), Ex certificate (scanned), calibration report, test report | With shipment or email in advance |
| Technical drawings | Outline drawing, installation drawing, wiring diagram, cross‑section | During technical approval and with shipment |
| Operation & maintenance manual | Installation guide, operation, maintenance, troubleshooting | With shipment or email in advance |
| Software/config | Transmitter configuration file (HART DD, etc.), configuration software (if any) | With shipment |
| Electronic index | Full instrument list by tag (Excel), spare parts list | With shipment or email in advance |
7. Site Acceptance and After‑Sales Service
| Check Item | Content | Done ☐ |
|---|---|---|
| Receiving inspection | Quantity, outer packing, tag labels, accompanying documents; check transport damage | ☐ |
| Unboxing inspection | Joint inspection with owner and contractor; fill unboxing report; take photos | ☐ |
| Installation guidance | Supplier to provide on‑site guidance (per contract) | ☐ |
| Commissioning support | Assist with parameter setting, loop check, commissioning | ☐ |
| Warranty period | Typically 12–18 months (from mechanical completion or shipment date) | ☐ |
| Spare parts replenishment | Free replacement for warranty failures; commitment for future spare parts | ☐ |
8. Common Risks and Mitigation in EPC Instrument Procurement
| Risk | Manifestation | Mitigation |
|---|---|---|
| Technical deviation | Supplier parameters do not meet specification | Full technical clarification before RFQ; request line‑by‑line response; strict FAT |
| Delivery delay | Long‑lead items (special material valves, imported instruments) late | Order early, establish expediting plan, track production progress |
| Quality non‑conformance | FAT data fails, or failure after installation | Engage third‑party inspection; resident inspector for critical items |
| Incomplete documents | Missing Ex certificate scan, material cert, calibration report | Specify document list and delivery schedule in contract as payment milestone |
| Packing damage | Appearance damage, internal loosening during transport | Require packing method approval; take photos/videos before shipment |
| Insufficient spares | Spare parts not available during warranty | Frame spares agreement or purchase critical spares upfront |
9. Why Choose Anhui Tiankang as Your EPC Instrument Supplier?
Complete product portfolio : Temperature, pressure, level, flow instruments plus instrumentation cables, Ex cable glands, instrument tubing and valves – one‑stop procurement reduces vendor count and management cost.
Full certifications : ISO9001, ISO14001, ISO45001, CCC, ATEX, IECEx, SIL, CPA (when applicable) – meet requirements of domestic and international EPC projects.
Rich project experience : Long‑term supplier to CNPC, Sinopec, CNOOC and international EPC contractors (e.g., CNCEC, Huanqiu, Wison, Hanwha, Chiyoda).
Quality control : CNAS‑accredited laboratory covering electrical, mechanical, environmental, flame retardance, explosion protection tests – ensuring reliable factory data.
Reliable delivery : Own manufacturing base and warehouse; common instruments and cables in stock; custom items scheduled per project milestones.
Standardized documentation : Provide outline drawing, wiring diagram, installation drawing, datasheet after contract signing; supply paper and electronic quality documents before shipment – meeting EPC document management requirements.
After‑sales service : On‑site installation guidance, commissioning support, fast response during warranty.
10. Conclusion
Instrument procurement in EPC projects is a systematic task requiring coordination of technical, quality, commercial, and logistics teams. This checklist covers the entire process from RFQ, vendor evaluation, contract signing, quality control during manufacturing, packing and shipping, documentation, to site acceptance. Using this checklist significantly reduces procurement risks and improves project execution efficiency.
Anhui Tiankang (Group) Co., Ltd. is ready to cooperate deeply with EPC contractors, offering high‑quality, cost‑effective instrumentation products and full procurement support.
Contact Us
For product catalogs, technical data, project quotations, or further technical discussion, please contact:
Yin Shuangjie
📧 Email: [email protected]
📱 WhatsApp / Zalo: +86 17856068126
🌐 Website: http://www.tiankang-global.com/
Anhui Tiankang – Your trusted instrumentation partner for EPC projects.
