Fabricated PP exhaust duct sections should be handed over with the approved drawing revision, supply list, identified interfaces, agreed material and inspection records, packing information, and open-item status. The required set depends on the purchase order and project acceptance plan, so the buyer should name every required deliverable before quotation and fabrication.
Define the Handover Boundary Before Fabrication Starts
Start by separating what is being supplied from what will be installed, tested, or commissioned by others. A fabricated duct section may be supplied with drawings and agreed inspection evidence, while site erection, fan balancing, airflow testing, and capture performance are not part of the same handover unless the contract explicitly says so. This boundary should match the RFQ and purchase order, not be reconstructed at shipment.
For the RFQ inputs that establish those boundaries, use the PP sheet data-sheet and fabrication guide. For material and fabrication context, see PP sheet for chemical exhaust ductwork. Neither page replaces a project-specific acceptance plan.
Build a Controlled Document Index for Each PP Exhaust Duct Shipment
A document index is the simplest way to prevent a drawing, photograph, label, or inspection note from being detached from the duct section it supports. Give each listed file a document number or controlled filename, revision, date, responsible party, and status. ISO terminology recognizes records as evidence of verification and as a means to formalize traceability; this is a useful general records principle, not a claim that any particular document is mandatory for every QEEHUA order. ISO 9000 terminology provides that background.
Core turnover index fields
- Project, purchase-order, equipment-area, and shipment identifiers.
- Document title, revision, issue date, and the party that approved or issued it.
- Related duct section, spool, interface, or packing-item reference.
- Required, submitted, accepted, or open status for each deliverable.
- Clear distinction between supplier documents and records due from the installer, commissioning provider, or project engineer.
| Document group | What the purchaser should define | What it supports |
|---|---|---|
| Controlled drawings | Approved drawing list, revision, isometric or spool identification, dimensions, and interface references. | Confirms which fabricated section is being supplied and where it is intended to connect. |
| Material and fabrication records | Only the project-agreed material identification, submittal, fabrication, or inspection evidence. | Links the requested evidence to the supplied component without implying unrequested certificates. |
| Inspection and release | Inspection points, report format, acceptance authority, deviations, and closure requirements. | Makes the release decision and remaining exceptions visible. |
| Packing and delivery | Quantity list, packing method, labels, delivery sequence, and any storage or handling instructions required by the project. | Helps site teams match delivered items to drawings and installation areas. |
| System documents by others | Named owner for installation, airflow testing, commissioning, and maintenance records. | Prevents supplied duct sections from being mistaken for a commissioned extraction system. |
Keep Drawings, Interfaces, and Packing References Aligned
Every duct section should be traceable back to the controlled drawing that defines its geometry and mating condition. Use a consistent section, spool, or assembly reference across the drawing, packing list, labels, and turnover index. If the section is intended to connect to a scrubber, fan, enclosure, or existing duct, record the interface reference and clearly mark whether the mating item is included or by others.
The same discipline applies to base-sheet documentation. The PP sheet data-sheet fabrication guide can help a purchaser identify material information to request, but final project documentation should follow the approved scope and service conditions.
Do Not Confuse Component Handover with LEV Commissioning
A fabricated PP duct shipment can be complete while local-exhaust-ventilation commissioning remains a separate site activity. HSE commissioning guidance describes a commissioning report with system identification, operating conditions, test methods, results, performance benchmarks, and relevant test points. Include such a report in a ductwork turnover package only when the contract assigns that scope and the responsible party is named. HSE’s commissioning guidance explains the general distinction.
Where the duct connects to wet treatment equipment, reference the defined handoff location and any separate equipment records. QEEHUA’s PP sheet wet-scrubber material checks page can provide adjacent material context, but it is not a commissioning report for a specific exhaust system.
Close Open Items Before the Shipment Is Released
Use the final index to list missing documents, drawing supersessions, approved deviations, incomplete inspection points, and the person authorized to close each item. If a required record cannot be provided, record that condition before the shipment is released rather than placing an unverified statement in the turnover file. This makes the package easier for procurement, site installation, and later maintenance teams to use.
PP Sheet Production Context
Document control follows the specific project scope. This QEEHUA video shows a PP sheet production step and gives only general material-production context; it does not validate the supplied duct section, its project records, or extraction-system commissioning.
Referencia de vídeo: PP Sheet Manufacturing: Control Box for Automatic Feeding System | QEEHUA. It shows a material-feeding control stage; it does not replace duct handover, inspection, or commissioning records.
Preguntas frecuentes
What is the most important handover document for a fabricated PP duct section?
A controlled document index is the most useful starting point because it links each required drawing, inspection record, packing reference, and open item to the identified duct section or shipment.
Should a duct section handover package include a commissioning report?
Include it only when the contract assigns commissioning scope and identifies the responsible party. Component supply records and site LEV commissioning are different deliverables.
How should duct sections be matched to drawings at delivery?
Use the same section, spool, or assembly reference on the controlled drawing, packing list, delivery labels, and turnover index. Record the related interface reference where a section joins other equipment.
Can a general PP product page replace project material records?
No. A product page is general context. The project turnover package should contain only the material and inspection evidence agreed for that order and approved under the project process.
Set the handover package in the RFQ
Send QEEHUA the controlled drawing list, required records, packing requirements, connection references, and supply boundary. We can review the fabricated PP exhaust-component request against the information you provide.
