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  • Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support
  • Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support
  • Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support
  • Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support
  • Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support
  • Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support
Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support

Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support

  • >= 100 Pieces
    $100

Customization:

Customized logo(Min.Order: 300 pieces)
Customized packaging(Min.Order: 300 pieces)

Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Efficiency Airflow: Designed to deliver powerful exhaust and ventilation capabilities using a backward-curved centrifugal impeller, optimizing airflow and pressure for HVAC systems and industrial applications.
  • Quiet Operation: Engineered with a ball-bearing system and aerodynamic blade design to minimize noise, ensuring seamless performance in noise-sensitive environments.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

  • With a stainless steel blade and housing, ensure long-lasting durability in corrosive or humid environments. ~30% more corrosion-resistant than plastic alternatives* [*Disclaimer: Based on internal testing; actual results may vary].

  • 2. Modular Mounting Design for Flexible Installation

  • With pre-drilled mounting holes and customizable material options (stainless steel, aluminum alloy, or plastic), easily integrate into HVAC systems or industrial ducts. Achieve 40% faster installation than standard centrifugal fans* [*Disclaimer: Based on manufacturer benchmarks].

  • 3. High-Efficiency Backward-Curved Blades

  • With backward-curved blade technology, achieve 25% higher airflow efficiency compared to standard axial fans*. Operate at lower energy consumption while maintaining quiet performance (≤55 dB), ideal for commercial or residential use.

  • 4. Versatile Scenario Adaptability

  • Designed for continuous 24/7 operation in HVAC systems, handle ~50% higher airflow demands than residential-grade fans*. Customizable voltage (115V/230V) and material options ensure suitability for industrial, commercial, or home environments.

  • 5. Global Compliance Certifications

  • Backed by ETL, CE, and RoHS certifications, meet stringent safety and environmental standards. Includes EPR compliance for Germany and France, ensuring eco-friendly disposal and reduced environmental impact.

Product details

Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan for HVAC System OEM Support

The Longwell Custom High Quality 315mm Diameter AC Backward Centrifugal Exhaust Fan is engineered for precision performance in HVAC systems. With customizable blade materials (aluminum, plastic, steel, stainless steel, aluminum alloy) and voltage compatibility (115V/230V), it delivers energy-efficient airflow tailored to industrial, commercial, or residential applications. Certified to global standards (CE, RoHS, ETL), it ensures safety and reliability, backed by a 1-year warranty.

Technical specifications

FeatureSpecificationApplication Scenario
Blade MaterialAluminum, plastic, steel, stainless steel, aluminum alloy (customizable)Corrosion resistance in chemical plants or humidity control in HVAC systems
Bearing TypeBall bearingReduced friction for long-term durability in continuous operation
Voltage CompatibilityAC 115V/230VGlobal HVAC system integration
Noise Level≤55 dB (adjustable via material and speed tuning)Quiet operation in hospitals or laboratories
CertificationsCE, RoHS, ETL, GS, EPR (Germany/France), LVDCompliance for EU and North American markets

Customization guide

Adjustable parameters include blade diameter (up to 315mm) and operating speed (1,200–2,400 RPM) to meet airflow demands. Material selection (e.g., stainless steel for corrosive environments) and voltage adaptation (AC/EC/DC) ensure compatibility with diverse systems.

Get inspired

With its backward-curved blades and corrosion-resistant materials, this fan optimizes airflow efficiency while minimizing energy use. Whether for industrial exhaust systems or residential HVAC setups, its modular design adapts to your project’s unique needs.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Airflow Capacity1,500 m³/h+20% (1,800 m³/h)+40% (2,100 m³/h)*
Noise Level55 dB-5% (52 dB)-10% (49 dB)
Efficiency Rating65%72%80%
Material OptionsAluminum, plasticStainless steelAll materials (incl. alloy)

Supplier's note

  1. Technical Breakthroughs:

    • Material Flexibility: Stainless steel blades reduce corrosion in harsh environments.
    • Ball Bearing Durability: Minimizes wear, extending lifespan by 30% compared to sleeve bearings.
    • Global Certifications: Streamlines compliance for EU and North American markets.
  2. Optimal Version Selection:

    • Base Model: Ideal for standard HVAC systems requiring cost-effective performance (e.g., residential buildings).
    • Advanced Model: Choose for industrial settings needing corrosion resistance (e.g., chemical plants).
    • Pro Model: Best for high-demand applications like data centers, where premium airflow and low noise (49 dB) are critical.

With stainless steel blades, you can ensure durability in corrosive environments. The Pro model’s 80% efficiency rating outperforms industry benchmarks by 15%, reducing energy costs. Pair its low noise profile with HVAC systems in hospitals for seamless operation.

Frequently asked questions

  • Which centrifugal fan model suits industrial kitchens with high humidity?

  • How do I maintain the blades of an AC backward centrifugal exhaust fan?

  • Stainless Steel vs Aluminum Blades: Which is better for corrosive environments?

  • Can this centrifugal fan be customized for OEM HVAC projects?

  • Is the Longwell centrifugal fan FDA-approved for commercial HVAC use?

  • Does the AC backward centrifugal exhaust fan reduce noise in HVAC systems?

  • Which voltage options are available for the 315mm AC centrifugal fan?

  • What’s the warranty coverage for the Longwell centrifugal exhaust fan?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial, Corrosive EnvironmentsIndustry Standard: Plastic/Aluminum (ASTM D638 Flexural Strength 50MPa)
Our Base: Aluminum Alloy (ASTM B211 Yield Strength 250MPa ▲)
Our Advanced: Stainless Steel (ASTM A240 Corrosion Resistance 1000+ hrs ▲▲)
▲ Base: Lightweight & Cost-Effective
▲▲ Advanced: Extreme Durability & Corrosion Resistance
▲ Base: Limited to Non-Corrosive Environments
▲▲ Advanced: Higher Material Costs
Noise LevelHospitals, Residential SpacesIndustry Standard: 55 dBA (louder than a quiet room)
Our Base: 43 dBA (quieter than a refrigerator hum ▲)
Our Advanced: 38 dBA (comparable to a library ▲▲)
▲ Base: Reduces Noise Pollution
▲▲ Advanced: Ideal for Sensitive Environments
▲ Base: Moderate Cost Increase
▲▲ Advanced: Premium Pricing
Energy EfficiencyHVAC Systems, Commercial BuildingsIndustry Standard: 65% Efficiency (IEC 60034-30)
Our Base: 75% (Energy Star Ready ▲)
Our Advanced: 85% (ISO 50001 Certified ▲▲)
▲ Base: 15% Lower Energy Bills
▲▲ Advanced: 30% Energy Savings
▲ Base: Higher Initial Investment
▲▲ Advanced: Complex Installation Requirements
CertificationsGlobal Markets (EU/US)Industry Standard: CE Only
Our Base: CE, ETL, GS (▲)
Our Advanced: All (ETL, GS, EPR, RoHS ▲▲)
▲ Base: Access to Major Markets
▲▲ Advanced: Full Compliance with EU/US Regulations
▲ Base: Compliance Costs
▲▲ Advanced: Lengthy Certification Process
CustomizationCustom HVAC ProjectsIndustry Standard: Limited Options
Our Base: Size/Speed Customization (▲)
Our Advanced: Full Material/Configuration Customization (▲▲)
▲ Base: Adapts to Basic Needs
▲▲ Advanced: Tailored Solutions for Unique Requirements
▲ Base: Moderate Lead Times
▲▲ Advanced: Extended Production Time
WarrantyLong-Term Industrial UseIndustry Standard: 6 Months
Our Base: 1 Year (▲)
Our Advanced: 2 Years + 24/7 Support (▲▲)
▲ Base: Standard Protection
▲▲ Advanced: Extended Coverage & Technical Assistance
▲ Base: Standard Pricing
▲▲ Advanced: Higher Premium Pricing

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