A meaningful HVAC quotation starts with more than a catalogue model number. Sizing and cost depend on airflow, static pressure, fluid temperatures, filtration grades, heat loads, metallurgy, and control protocols.
If you already know the model, send the product code and quantity. If you do not know the exact model, send the operating duty conditions instead. YONGFAN application engineers will verify technical compatibility before final pricing is issued.
BOQ schedule reviews, duty calculations, and multi-category project packaging.
When replacing obsolete units, we match Function + Performance + Physical Interface. Provide the existing manufacturer, nameplate photo, flange dimensions, and electrical supply. For fan and filter ranges, we ensure direct physical dimensional compatibility without duct rebuilding.
For distributor and OEM projects, specify the target product family, target market (CE/UL requirements), estimated annual volume, private branding guidelines, custom casing dimensions, and packaging protocols.
Product family, project scope, and target application environment are identified.
We verify whether the nominated model or parameter matches the actual operating duty curve.
If data is missing (e.g. static pressure, water temps), critical parameters are clarified.
Final confirmation of size, casing metallurgy, motor rating, filter grade, and controls.
Formal commercial proposal issued reflecting verified technical submittals and Incoterms.
Exact units required for initial batch and project phases.
Destination country, city, and exact receiving seaport / airport.
EXW, FOB, CIF, or DDP delivery terms where agreed.
Project site required-on-site (ROS) delivery milestones.
Reinforced export wooden crates, moisture barrier, or containerized.
Send your available technical requirements, equipment schedules, or BOQ files directly to YONGFAN sales engineers. No complex website forms required — communicate directly with our commercial and technical teams.
