Heat Tracing Project Timeline: From RFQ to Delivery
Most heat tracing orders are late because of information gaps, not production. A project can move from RFQ to delivery in four to six weeks when the technical data is complete, or drag for months when it is not. This guide shows the stages, the typical durations and what the buyer needs to prepare.
Stage 1: RFQ and technical clarification (3–7 days)
The buyer sends the pipe or tank list, maintain temperatures, ambient minimum, supply voltage, hazardous area classification and required certifications. The supplier reviews the data, asks clarifications and confirms the scope.
What to prepare: line list with dimensions, insulation spec (if defined), area classification drawing, electrical supply details, delivery destination and required documents.
Stage 2: Design and heat loss calculation (3–5 days)
Heat loss calculation, cable selection, circuit layout, control scheme, bill of materials and quotation. For larger projects this can take one to two weeks.
What causes delay: incomplete pipe data, undefined maintain temperatures, or a design that must be reworked after the customer changes the scope.
Stage 3: Purchase order and documentation (2–5 days)
Order confirmation, final drawings for approval, certification documents, and the production schedule. Approval of drawings is often the longest part of this stage.
Stage 4: Production (15–25 working days typical)
Standard cable and accessories are usually in the 15–25 working day range. MI cable, custom lengths and control panels take longer. Winter is the peak season for heat tracing — order earlier.
Stage 5: Factory testing and inspection (2–3 days)
Insulation resistance, functional tests, panel tests and the test report. If a third-party inspection is required, schedule it in advance.
Stage 6: Shipping and documents (5–30 days depending on destination)
Export packing, commercial invoice, packing list, certificate of origin and the transport documents. Sea freight to Europe or the Gulf typically takes several weeks; air freight is faster but costly for cable.
Stage 7: Installation and commissioning (project dependent)
Installation follows the piping and insulation schedule. Commissioning records should be prepared in advance (see the commissioning procedure guide).
Typical timeline summary
| Stage | Typical duration | Buyer input needed |
|---|---|---|
| RFQ clarification | 3–7 days | Line list, temperatures, area classification |
| Design and quote | 3–5 days | Confirm scope and standards |
| PO and approvals | 2–5 days | Drawing approval |
| Production | 15–25 working days | — |
| Factory test | 2–3 days | Witness arrangement if required |
| Shipping | 5–30 days | Destination and Incoterms |
How to avoid delays
- Send complete pipe data with the first RFQ, not in several rounds.
- Decide the maintain temperature and control philosophy early.
- Confirm certification requirements and destination market before design.
- Place orders before the winter peak.
- Approve drawings quickly — the factory cannot start without them.
Topic hub: Installation, Commissioning and Maintenance
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