Corrosion-Resistant Industrial Fans Manufacturer
Nantong Nanyang Fan Manufacturing Co., Ltd. manufactures heavy-duty FRP, PP, PVDF, and stainless/nickel-alloy corrosion-resistant fans for chemical processing, acid fume scrubbing, wastewater treatment, and hazardous exhaust ventilation. Built under ISO 9001 and ISO 14001 quality management systems, our process fans match specific chemical exposure, static pressure, airflow, and temperature points for EPC contractors, scrubber integrators, and plant engineers.
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Fan Selection
|
Fan Category / Configuration |
Airflow Range (m3/h) |
Static Pressure (Pa) |
Max Temp (Deg C) |
Compatible Chemical Medium |
Material Options |
Primary Drive Arrangement |
|
FRP High-Pressure Centrifugal Fan |
1,000 - 120,000 |
500 - 8,500 |
Up to 120 Deg C |
HCl, H2SO4, HNO3 fumes, wet Cl2, acid scrubbers. |
Vinyl Ester FRP / Isophthalic Resin |
Direct Drive / Coupling Drive |
|
Thermoplastic (PP / PVDF) Fan |
500 - 450,000 |
300 - 4,500 |
Up to 90 Deg C (PP) / 140 Deg C (PVDF) |
Highly concentrated alkaline gases, HF fumes, organic solvents. |
PPH / PVDF Injection & Welded |
Direct Drive / Belt Drive |
|
Stainless / Duplex Steel Fan |
800 - 250,000 |
400 - 15,000 |
Up to 400 Deg C |
High-temp chemical vapors, solvent exhaust, mild acid gas mix. |
304, 316L, 2205 Duplex, 2507 Duplex |
Direct / Belt / Coupling |
|
Nickel-Alloy Extreme-Duty Blower |
500 - 80,000 |
1,000 - 22,000 |
Up to 600 Deg C |
Hot concentrated chlorine, sulfuric gas, severe corrosive mix. |
Hastelloy C-276, Inconel 625 |
Coupling Drive |
|
FRP / Stainless Roof Exhaust Fan |
1,200 - 65,000 |
100 - 800 |
Up to 80 Deg C |
Corrosive workshop exhaust, chemical storage ventilation. |
FRP Hood / Stainless Impeller |
Direct Drive / IP55 |
Materials & Construction Options
Casing & Housing Construction
Fiberglass Reinforced Plastic (FRP): Flame-retardant vinyl ester resin (Derakane / Hetron series) reinforced with multi-layer E-glass chopped strand mat and woven roving. Corrosion liner thickness 2.5 mm with total structural wall thickness up to 12 mm.
Polypropylene (PPH / PVDF): Solid extruded PPH or PVDF sheet welded via automated hot-gas extrusion. Suitable for halogen acid vapors where fiberglass is susceptible to attack.
Duplex & Super Austenitic Stainless Steel: 2205, 2507, and 904L stainless steels passivated for organic acids and chloride-bearing environments.
Nickel-Base Alloys: Solid Hastelloy C-276 or Inconel 625 lining for high-temperature chlor-alkali and metallurgical gas applications.
Impeller & Shaft Anti-Corrosion Protection
FRP Backward-Curved / Radial Impellers: Integrated one-piece molded wheels with embedded steel hub structure fully encapsulated in a minimum 5 mm resin-rich corrosion barrier.
Shaft Encapsulation: Stainless steel drive shaft completely sleeved with FRP or PVDF overlay extending past the casing seal zone to prevent process gas contact with raw steel.
Dynamic Balancing: Every anti-corrosion impeller is dynamically balanced to ISO 1940 Grade G2.5 prior to casing assembly.
Technical Specifications
|
Parameter |
Standard Range / Specification |
|
Airflow Capacity |
500 m3/h to 250,000 m3/h (300 CFM to 147,000 CFM) |
|
Static Pressure |
Up to 22,000 Pa (88 in. wg) |
|
Operating Temperature |
-20 Deg C to +120 Deg C (FRP/PP) / Up to +600 Deg C (Hastelloy C-276) |
|
Impeller Diameter |
280 mm to 2,200 mm (11 in. to 87 in.) |
|
Casing Leakage Rate |
Class A gas-tight casing sealing according to EN 1751 standards |
|
Resin / Material Certification |
ASTM C581 chemical resistance testing standards; Barcol Hardness Greater than or equal to 40 for FRP components |
|
Motor & Explosion-Proof Specs |
IEC frame, TEFC, IP55/IP65, Class F insulation; ATEX certified Ex d IIBT4 / Ex d IICT4 for Zone 1/2 explosive gas atmospheres |
|
Drive Configuration Options |
Arrangement 1 (Cantilever belt drive), Arrangement 4 (Direct drive wheel on shaft), Arrangement 8 (Direct drive flexible coupling with pedestal) |
Applications by Industry
Chemical & Petrochemical Processing: Wet scrubber exhaust, reactor vessel ventilation, chlorine gas extraction, and solvent recovery systems.
Steel Pickling & Galvanizing Lines: HCl and H2SO4 acid mist extraction fans mounted directly on push-pull pickling tank ventilation systems.
Semiconductor & Electronics Manufacturing: High-purity acid exhaust systems handling HF, HNO3, and silane process fumes.
Chlor-Alkali & Fertilizer Plants: Wet chlorine gas blowers, ammonium nitrate dust/vapor exhaust, and phosphoric acid plant ventilation.
Waste Incineration & Desulfurization: Flue gas desulfurization (FGD) emergency exhaust, lime slurry mist handling, and wet electrostatic precipitator (WESP) draft fans.
Custom Fan Engineering & Corrosion Analysis
Chemical Compatibility Evaluation
Medium analysis based on gas composition, moisture percentage, liquid droplet carryover, and temperature profiles.
Selection of specific resin systems (Isophthalic, Bisphenol-A, Vinyl Ester) or metallic alloys based on corrosion coupon performance data.
FEA Structural & Finite Element Vibration Analysis
Finite Element Analysis (FEA) verification of FRP impeller stress distribution under maximum operational RPM and negative pressure loads.
Structural casing reinforcement modeling with external steel stiffener ribs fully encapsulated in resin to prevent vacuum collapse.
Manufacturing & Quality Control
Raw Material Resin/Plate Testing
FRP One-Piece Mold Lay-up / PPH Extrusion Welding
Steel Hub Encapsulation & Shaft Sleeve Assembly
Impeller Dynamic Balancing to ISO G2.5 (Barcol Hardness Test)
Casing Pressure & Gas Leakage Test
Final FAT Run Test (Vibration, Bearing Temp, Airflow Verification)
Barcol Hardness Inspection: FRP impellers and casings undergo Barcol hardness testing (target Greater than or equal to 40) to verify complete resin cure and structural strength.
Casing Pressure & Leak Test: Chemical fans are pressure-tested and soap-bubble inspected at 1.5 times operating static pressure to verify casing gastight integrity.
Dynamic Balancing Calibration: Two-plane dynamic balancing on computerized balancing machines to ISO 1940 Grade G2.5. Balance data is archived and included in shipment documentation.
Factory Acceptance Testing (FAT): 2-hour full-speed mechanical run test verifying overall vibration velocity (Less than 2.8 mm/s RMS) and bearing housing temperature rise before dispatch.
Packaging & Project Support
Export Protection Packaging: ISPM 15 heat-treated wooden crates with internal waterproof vapor barrier and corrosion-inhibiting VCI film wrapping.
Rigging & Structural Support: Heavy-gage steel mounting skids coated with two-pack epoxy resin paint for rigid crane lifting and foundation anchorage.
Project Documentation Package:
Dimensioned 2D CAD Drawings (DWG/PDF) and 3D STEP Models.
Fan Performance Curves (Airflow vs. Static Pressure vs. Shaft Power).
Resin / Material Mill Test Certificates (MTC) and Chemical Resistance Verification Reports.
Dynamic Balancing and FAT Inspection Certificates.
English Operation and Maintenance Manuals.
FAQ
Request a Corrosion-Resistant Fan Selection & Proposal
Need a material assessment, CAD drawing, or fan selection calculation for your chemical exhaust project? Contact our engineering sales team with your process specifications:
E-mail: nyfji@126.com
Direct Phone / WhatsApp: +86 186 6290 3785
Manufacturing Location: North End of Jiuwei Port Bridge, Nantong City, Jiangsu Province, China
Deliverables Included with Proposal: Chemical Resistance Compatibility Review, Fan Performance Curves, Dimensioned 2D/3D GA Drawings, Component Data Sheets, and Itemized Commercial Quotation within 24 hours.
As one of the leading corrosion-resistant fan manufacturers and suppliers in China, we also support customized service with low price. Please feel free to buy discount corrosion-resistant fan made in China here from our factory. For quotation, contact us now.
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