QIYUE FAN · Engineering RFQ Center
Industrial Fan Inquiry, Replacement & Spare Parts Support
Choose the route that matches your project. Complete parameters are useful, but not required for the first inquiry. If pressure is unknown, send the duct and equipment information instead. For replacement projects, a nameplate, drawing, site photo or existing dimensions can still be used to begin the review.
Minimum Useful Evidence
Start With What You Know
01
Airflow or process capacity
02
Pressure, or duct / resistance information
03
Medium, temperature, dust / corrosion condition
04
Voltage, frequency, quantity and destination
05
Nameplate, drawing or photos for replacement
Unknown items can remain blank during the first inquiry.
Path A
Known Duty Point
Path B
Pressure Unknown
Path C
Fan Replacement
Path D
Spare Parts
01 · Choose Your Inquiry Path
Start With the Information You Already Have
Path A
Known Duty Point
Airflow + Pressure Are Available
Application / process · Required airflow · Static or total pressure · Normal / peak temperature · Gas / dust / corrosion condition · Voltage / frequency · Quantity & destination
Selection Route
Airflow + Pressure → Fan Family → Performance Curve → Size / RPM / Motor → Quotation
Path B
Pressure Unknown
Airflow Is Known, Pressure Is Not
Duct size · Approximate duct length · Elbows / branches / transitions · Filter / baghouse / cyclone / scrubber · Vertical rise · Outlet route · Site sketch / photos
Resistance Route
Airflow → Duct / Equipment Data → Resistance Review → Pressure Basis → Fan Family / Model → RFQ
Path C
Fan Replacement
Replace an Existing Fan
Fan nameplate · Motor nameplate · Full fan photos · Old GA drawing / curve · Inlet / outlet / foundation dimensions · Rotation / outlet angle · Current operating problem
Replacement Basis
Exact original duty data is useful, but not mandatory for the first review. Existing physical evidence can start the process.
Path D
Spare Parts
Request Replacement Parts
Fan model / serial number · Part required · Impeller / casing / shaft · Bearing / base / coupling · Material · Quantity · Part photo / dimensions / drawing
Interchangeability Review
For non-QIYUE equipment, photos and dimensions may be required before replacement compatibility can be reviewed.
02 · What to Send for a Quote
Technical RFQ Data
Operating Data
Airflow & Pressure
m³/h, m³/s or CFM; Pa, kPa or mmH₂O. Mark pressure as "Unknown" if not available.
Medium
Temperature & Gas Condition
Normal / maximum temperature, dust, humidity, corrosion or other process conditions.
Electrical
Voltage & Frequency
Voltage, Hz, phase and any motor protection or VFD requirement.
Project
Quantity & Destination
Quantity, destination country / city and any delivery or documentation requirement.
03 · Send Drawings & Photos
Email Is the Preferred Channel for Technical RFQs
For drawings, specifications, datasheets, nameplates and project files, email is preferred because it keeps the technical record together. WhatsApp is useful for quick site photos, nameplates and follow-up communication.
Recommended attachments: specification sheet, GA drawing, duct sketch, fan / motor nameplate, full equipment photos and any existing performance data.
Send Inquiry
Use the existing form below for contact details and written requirements. If pressure is unknown, write "Unknown" and describe the duct / filter / equipment route instead. For drawings and photos, email is preferred; WhatsApp can be used for quick image sharing.