Description
Who Needs This PP Anti-Corrosion Fan?
Standard metal fans corrode rapidly in industrial environments containing acidic or alkaline gases, leading to premature failure and costly downtime. Our polypropylene (PP) centrifugal fan is specifically engineered for industrial air pollution control systems, providing reliable corrosion-resistant ventilation for wet scrubbers, fume hoods, and chemical processing facilities. It complies with OSHA industrial ventilation standards and EPA exhaust system requirements.
Wet Scrubber Exhaust Systems: The perfect companion for all XICHENG wet scrubbers, including HCl scrubbers, NOx scrubbers, ammonia scrubbers, and SOx scrubbers. Our fans are pre-sized to match each scrubber model for optimal performance.
Chemical Processing Plants: Ideal for ventilating areas where corrosive gases are present, including acid storage rooms, mixing stations, and reaction vessels. The all-PP construction resists corrosion from most acids, alkalis, and salts.
Electroplating & Metal Finishing: Handles corrosive fumes from electroplating baths, pickling lines, and anodizing processes, protecting workers and extending the life of your ventilation system.
Laboratory Fume Hood Ventilation: Provides safe and reliable ventilation for laboratory fume hoods, ensuring that toxic and corrosive fumes are effectively removed from the workspace.
Not Recommended For: Gas temperatures exceeding 80°C/176°F, particulate concentrations above 150 mg/m³, and gases containing aromatic compounds, ketones, or halogenated hydrocarbons (these will degrade PP material).
Why Choose XICHENG PP Centrifugal Fan
1. 100% Corrosion Resistant All-PP Construction
All wetted parts (impeller, volute, inlet, outlet) are constructed from homogeneous polypropylene (PP) with seamless welding. This provides complete resistance to most acids, alkalis, and salts, eliminating the corrosion problems that plague metal fans.
Unlike coated metal fans that fail when the coating is scratched, our PP fans maintain their corrosion resistance throughout their entire 15+ year service life.
2. Aerodynamically Optimized Impeller: 35% Energy Saving
Our impellers are designed using advanced computational fluid dynamics (CFD) software to maximize efficiency and minimize energy consumption. Compared to conventional PP fans, our design delivers 40% higher wind pressure while reducing energy consumption by 35%.
For a 10,000 m³/h system, this translates to annual energy savings of approximately 18,000 kWh, worth $2,160 at current industrial electricity prices.
3. Direct Drive Design: Zero Leakage, 98% Transmission Efficiency
Our fans feature a direct drive design where the impeller is mounted directly on the motor shaft. This eliminates the need for belts, pulleys, and couplings, which are common sources of leakage, maintenance, and energy loss.
The direct drive design provides 98% transmission efficiency, compared to 85-90% for belt-driven fans, and ensures zero gas leakage into the surrounding environment.
4. Tapered Shaft Sleeve: Corrosion Protection & Easy Maintenance
The impeller central shaft features a tapered design with a PP tapered sleeve that completely encloses the metal shaft, preventing corrosion and rust of the connecting rod. This design also allows for quick and easy installation, maintenance, and impeller replacement.
No special tools are required for impeller replacement, reducing maintenance downtime by 70% compared to conventional designs.
5. ATEX-Compliant Explosion-Proof Options
For applications involving flammable or explosive gases such as ammonia, hydrogen, and organic vapors, we offer ATEX-compliant explosion-proof versions of our fans. These feature explosion-proof motors, static grounding, and non-sparking construction.
All explosion-proof fans are certified to meet ATEX Directive 2014/34/EU for use in Zone 2 hazardous areas.
Technical Specifications
| Model | Air Volume (m³/h) | Total Pressure (Pa) | Motor Power (kW) | Speed (rpm) | Max Temperature (°C) | Noise (dB(A)) | Explosion-Proof Option |
|---|---|---|---|---|---|---|---|
| PPF-300 | 1,000-3,000 | 300-600 | 0.75 | 1440 | 80 | 65 | Available |
| PPF-400 | 3,000-5,000 | 400-700 | 1.5 | 1440 | 80 | 68 | Available |
| PPF-500 | 5,000-8,000 | 500-800 | 2.2 | 1440 | 80 | 70 | Available |
| PPF-600 | 8,000-12,000 | 500-900 | 3.0 | 1440 | 80 | 72 | Available |
| PPF-700 | 12,000-17,000 | 600-1000 | 4.0 | 1440 | 80 | 74 | Available |
| PPF-800 | 17,000-25,000 | 600-1100 | 5.5 | 1440 | 80 | 76 | Available |
| PPF-900 | 25,000-32,000 | 700-1200 | 7.5 | 1440 | 80 | 78 | Available |
| PPF-1000 | 32,000-40,000 | 700-1300 | 11.0 | 1440 | 80 | 80 | Available |
Note: Custom sizes and configurations available for air volumes exceeding 40,000 m³/h. All fans come standard with rubber shock-absorbing bases. Spring bases available upon request.
Frequently Asked Questions
Q1: What is the difference between a PP fan and a metal fan?
PP fans are completely resistant to corrosion from most acids, alkalis, and salts, while metal fans (steel, stainless steel) will corrode rapidly in these environments. PP fans are also lighter, quieter, and more energy efficient than comparable metal fans.
However, PP fans have lower temperature limits (80°C vs 200°C+ for metal fans) and are not suitable for gases containing aromatic compounds or ketones. Learn more about material selection in our 风机能耗成本分析 guide.
Q2: How does PP material resist corrosion?
Polypropylene is a thermoplastic polymer that is chemically inert to most acids, alkalis, and salts. Unlike metal, it does not rust or corrode when exposed to these substances, even over long periods of time.
Our fans are constructed from homogeneous PP material, meaning the corrosion resistance is consistent throughout the entire thickness of the material, not just on the surface like coated metal fans.
Q3: Do you offer explosion-proof PP fans?
Yes, we offer ATEX-compliant explosion-proof versions of all our fan models. These feature explosion-proof motors certified for Zone 2 hazardous areas, static grounding, and non-sparking construction.
Explosion-proof fans are required for applications involving flammable gases such as ammonia, hydrogen, and organic vapors.
Q4: How do I select the correct fan for my scrubber?
The correct fan size depends on the required air volume and system resistance of your scrubber. All XICHENG scrubbers come with recommended fan specifications to ensure optimal performance.
Our engineers can also provide a detailed fan selection calculation based on your specific system requirements. Refer to our 风机与洗涤塔选型指南 for more information.
Q5: What is the installation requirement for PP fans?
PP fans should be installed on a level, stable surface using the provided shock-absorbing base. The inlet and outlet should be connected to the ductwork using flexible connectors to reduce vibration and noise.
The fan should be easily accessible for maintenance and inspection. We recommend leaving at least 1 meter of clearance around the fan for service access.
Q6: What maintenance does a PP fan require?
PP fans require minimal maintenance compared to metal fans. We recommend monthly inspections of the impeller and volute for signs of damage or buildup, quarterly lubrication of the motor bearings, and annual performance testing.
Download our PP风机维护手册 for a detailed maintenance schedule and procedures.
Q7: What is the lifespan of a PP fan?
With proper operation and maintenance, our PP fans have a service life of 15+ years. This is significantly longer than metal fans, which typically last only 3-5 years in corrosive environments.
The impeller and motor bearings may need to be replaced after 8-10 years, depending on operating conditions.
Q8: How do you control noise from PP fans?
Our fans are designed to operate quietly, with noise levels ranging from 65-80 dB(A) depending on the model. For applications requiring lower noise levels, we offer optional silencers that can reduce noise by 15-20 dB(A).
Proper installation with flexible connectors and shock-absorbing bases also helps to reduce vibration and noise transmission.
Q9: Can you customize PP fans for specific applications?
Yes, we offer a wide range of customization options, including custom inlet/outlet sizes, special motor voltages, variable frequency drives (VFDs) for speed control, and silencers.
We can also design custom fans for unique applications or space constraints. Contact our engineering team to discuss your specific requirements.
Q10: What is the warranty policy for PP fans?
All XICHENG PP fans come with a standard 12-month warranty against defects in materials and workmanship. We also offer extended warranty options of up to 3 years for additional peace of mind.
Our warranty covers parts and labor for repairs performed by our authorized service technicians.
About the Author & Our Expertise
Written by Corbin Deng, Process Engineer
12 years of experience in industrial ventilation and air pollution control systems design
XICHENG EP LTD is a leading manufacturer of industrial air pollution control equipment based in Shenzhen, China. With 16 years of specialized experience in PP fan technology, we have delivered over 5,000 fans to customers in more than 30 countries worldwide.
Our fans are designed and manufactured to work seamlessly with our complete line of wet scrubbers and air pollution control equipment, ensuring optimal system performance and reliability.
Recent PP Fan Installation References
- Shandong Steel Plant: 25,000 m³/h PP fan for HCl scrubber system
- Malaysia Chemical Plant: 18,000 m³/h explosion-proof fan for ammonia scrubber
- Singapore Electronics Factory: 12,000 m³/h fan for mixed acid fume scrubber
Certifications
- ISO 9001:2015 Quality Management System
- CE Marking for European Union
- ATEX Explosion-Proof Certification
- China Environmental Protection Product Certification
