DWT-II Type Glass Fiber Reinforced Plastic Centrifugal Roof Fan
DWT-II Type Glass Fiber Reinforced Plastic Centrifugal Roof Fan - Image 2
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DWT-II Type Glass Fiber Reinforced Plastic Centrifugal Roof Fan

DWT-II type glass fiber reinforced plastic (FRP) centrifugal roof fan features corrosion resistance, anti-aging and rainproof performance. Large airflow, low noise and stable operation, specially designed for roof installation. Ideal for chemical factories, workshops, warehouses and corrosive environment exhaust ventilation.

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Product Overview

The DWT-II Type Glass Fiber Reinforced Plastic (FRP) Centrifugal Roof Fan is a low-pressure rooftop ventilation system specially designed for industrial and commercial ventilation applications. The fan adopts a centrifugal airflow structure combined with corrosion-resistant FRP construction, providing reliable performance, low noise operation, energy efficiency, and long service life.

The product is widely used for roof-mounted ventilation, exhaust air systems, factory air exchange, and industrial cooling applications.

Product Features

  • Corrosion-Resistant FRP Construction  The base, impeller, and hood are manufactured from high-quality glass fiber reinforced plastic (FRP), providing excellent corrosion resistance and anti-aging performance.
  • Low Noise & Energy Saving  Optimized centrifugal impeller design reduces operational noise while maintaining energy-efficient ventilation performance.
  • Lightweight & High Strength  FRP composite materials provide high structural strength with reduced overall weight for easier rooftop installation.
  • Reliable Operation  Compact structure with stable airflow performance ensures long-term continuous operation.
  • Convenient Roof Installation  Roof-mounted structure with safety protection design allows easy installation and maintenance.

Product Structure

  • Main Materials
  • Base: FRP composite material
  • Impeller: FRP composite material
  • Hood: FRP composite material
  • Turbine head: Galvanized steel plate
  • Structural Design
  • 10-blade impeller structure
  • Blade angle: 15°
  • Straight airflow centrifugal ventilation structure
  • Compact low-pressure fan configuration

Applications

  • Industrial factories
  • Workshops
  • Warehouses
  • Stadiums
  • Theaters and cinemas
  • Power plants
  • Laboratories
  • Rubber factories
  • Automobile manufacturing plants
  • Motorcycle factories
  • Textile industry
  • Metallurgical industry
  • Commercial rooftop ventilation systems

Working Conditions

  • Conveyed medium: Non-sticky gases only
  • Dust and hard particles: ≤ 150 mg/m³
  • Gas temperature: ≤ 60°C
  • Relative humidity: ≤ 100%

Certifications

  • CE Certification
  • SASO Certification
  • CB Certification
  • GCC Certification
  • CCC Certification

Main Technical Parameters

Model Power (kW) Speed (r/min) Air Volume (m³/h) Total Pressure (Pa)
3 0.75 / 1.5 1400 / 2800 878–3150 122–284
3.5 1.1 / 2.2 1400 / 2800 1395–6270 150–700
4 0.75 / 1.1 960 / 1400 1887–2750 80–412
4.5 0.75 / 1.1 / 2.2 960 / 1400 / 1440 2760–6113 100–615
5 0.55 / 1.1 / 5.5 710 / 960 / 1450 2450–20020 80–500
6 1.1 / 3 / 7.5 720 / 960 / 1450 5024–27000 150–500
7 1.1 / 3 / 11 720 / 960 / 1450 8012–40000 150–548
8 2.2 / 4 720 / 960 17200–26000 100–200
10 7.5 / 18.5 720 / 960 20360–37476 637–1395

Installation Dimensions

Model ΦA (mm) B (mm) C (mm) D (mm) E (mm) ΦF (mm) H (mm)
3 667 500 60 320 520 305 722
3.5 970 560 60 340 540 360 778
4 970 660 60 340 600 400 823
4.5 1143 700 60 400 700 460 853
5 1143 750 60 420 750 488 968
6 1280 840 60 480 910 580 1046
7 1280 900 60 500 930 710 1249
8 1410 1000 60 500 1060 800 1373
10 1760 1300 60 560 1260 1010 1580

Product Advantages

  • Excellent Corrosion Resistance  FRP material is highly resistant to humidity, chemical corrosion, and outdoor aging conditions.
  • Low Noise & Low Energy Consumption  Noise level controlled within 70–80 dB(A) while maintaining efficient ventilation performance.
  • Reliable Structure  10-blade impeller and reinforced structural design ensure stable long-term operation.
  • Lightweight Design  FRP composite structure significantly reduces rooftop load requirements.
  • Wide Model Selection  Available in sizes 3–10 with multiple power and speed configurations for different ventilation requirements.

OEM & ODM Services

  • OEM manufacturing
  • ODM customization
  • Customized material selection
  • Customized motor power and rotational speed
  • Customized voltage and frequency
  • Customized rooftop installation structure
  • Private label packaging support

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