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A tank level RFQ can start before every site detail is available, but it should not present guesses as confirmed dimensions or operating conditions. Mark unknowns clearly and identify which ones prevent a firm configuration. This lets the supplier distinguish a budget proposal from equipment ready to order.
Classify the Information in a Tank Level RFQ
For each important entry, state its origin: measured on site, taken from an approved drawing, supplied by the process owner, or still to be confirmed. A drawing revision and a measurement date are more useful than a bare number when the installation may have changed.
| Status | Example | Treatment in the offer |
|---|---|---|
| Confirmed | Measured nozzle bore and identified thread. | Use as the configuration basis with its reference recorded. |
| Estimated | Tank height inferred from an old layout. | Show the assumption and the required confirmation before release. |
| Unknown | Cleaning-fluid concentration or pressure at the specified operating temperature. | Keep the affected material or rating decision open. |
| Excluded | Site cabling supplied by another contractor. | State the interface and responsible party rather than silently omitting it. |
For MV-RD12, missing nozzle geometry can prevent an installation assessment, while missing chemistry or pressure-temperature duty can prevent assembly approval. Those are different uncertainties. Do not resolve either by requesting the highest rating available without checking its relevance.
Ask for Conditional Items to Be Visible
A useful budget offer identifies the assumed construction, excluded work and documents needed to make it firm. Ask which changes would alter the configuration, price or delivery commitment. Do not treat a provisional configuration as a supplier guarantee for conditions that were never supplied.
Identify who will confirm each missing item and when confirmation is needed. Some can be closed by reading a nameplate or checking a drawing; others require planned isolation and access. The latter should appear in the project schedule, particularly if they determine whether the existing nozzle or wiring can be reused.
When the RFQ Can Become an Order
Before placing the order, review the offer against the confirmed requirements. Close material, connection, electrical and acceptance exceptions explicitly. Keep any remaining condition attached to the purchase documentation so it is not lost when a quotation is converted into an order.
Q1. Is it better to leave an unknown field blank?
No. Label it unknown and state who will confirm it. A blank can be mistaken for not applicable. Include the reason and expected confirmation method where it affects selection.
Q2. Can a supplier choose a reasonable default?
A proposed assumption can help develop a budget, but it must be visible and reviewed. Defaults involving chemical compatibility, pressure containment or control interfaces should not become accepted site facts merely because they appear in an offer.
Summary
A reliable RFQ makes uncertainty manageable rather than hiding it. Send the confirmed data and the open-item list with a tank-level quotation request, and ask for a clearly identified proposal revision before procurement releases the assembly.
