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DWT-II Rooftop Centrifugal Fan - Industrial Fans

DWT-II Rooftop Centrifugal Fan

Roof-mounted centrifugal exhaust fan

Airflow500~40,000 m3/h
Pressure Range200~700 Pa
Motor Power0.25~15 kW
MaterialFRP / Galvanized Steel
CertificationsISO9001;CCC
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โœ“ Direct Manufacturer โœ“ 30+ Years Experience โœ“ 50+ Countries Served โœ“ Full Customization

Product Overview

DWT-II series rooftop centrifugal fan for buildings requiring higher pressure exhaust. Combines the convenience of rooftop mounting with the performance of centrifugal fan design.

Key Features

  • Higher pressure than axial type
  • Centrifugal impeller design
  • Weather-proof construction
  • Low noise centrifugal operation

Procurement & Commercial Terms

Minimum Order Quantity1 unit (made to order)
Production Lead Time15โ€“30 working days after deposit confirmation
Delivery TermsFOB Qingdao / EXW Dezhou, China
Payment TermsT/T 30% deposit, 70% before shipment; L/C at sight accepted
Warranty18 months from shipment
OEM / ODMAvailable โ€” custom airflow, pressure, material & voltage
CertificationsISO9001, CCC

Why specify Keruite: With an airflow range of 500~40,000 m3/h and pressure up to 200~700 Pa, the DWT-II Rooftop Centrifugal Fan is engineered for demanding Commercial buildings duties and built from FRP / Galvanized Steel for long service life. As a direct manufacturer since 1995 with an 80,000 mยฒ production base and equipment exported to 50+ countries, we supply the DWT-II Rooftop Centrifugal Fan with full performance test reports, general arrangement drawings, and factory-audit support. Request a quotation →

Key Features

  • โœ“ Higher pressure
  • โœ“ Centrifugal design
  • โœ“ Weather-proof
  • โœ“ Low noise

Applications

  • โ— Commercial buildings
  • โ— Hotels
  • โ— Hospitals
  • โ— Industrial facilities

Compliance & Certifications

โœ…
CCC
China Compulsory Cert.
โœ…
CE
EU Conformity Mark
โœ…
ISO 9001
Quality Management
โœ…
ATEX
Explosion-Proof (Ex d)

Note: Specific certifications available depend on product type and market. For ATEX/Ex d applications, please specify gas group, temperature class, and zone classification in your inquiry. Full type test certificates and Declarations of Conformity are included with every Ex-rated unit.

Videos From Our Factory

Keruite HVAC Factory Shipping | Air Handling Units & Fans Loaded for Global Delivery - DWT-II Rooftop Centrifugal Fan

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Modular Sand Removal Air Handling Units โ€“ Keruite Product Introduction - DWT-II Rooftop Centrifugal Fan

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Keruite HVAC Product Showcase | Central Air Handling Units, Fan Coils, Rooftop AC & More - DWT-II Rooftop Centrifugal Fan

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Performance Curve

Airflow (mยณ/h) Pressure (Pa) Max Speed Mid Speed Low Speed

Representative performance curves at different speeds. Contact us for detailed performance data specific to your required model and operating conditions.

Dimensions & Installation

Inlet Outlet Motor L (Length) H (Height) W (Width)

Schematic dimension diagram. Exact dimensions vary by model number. Request the technical datasheet for precise specifications.

Frequently Asked Questions

What is the airflow range of the DWT-II Rooftop Centrifugal Fan?

The DWT-II Rooftop Centrifugal Fan delivers an airflow range of 500~40,000 m3/h. Contact us with your specific requirements for precise model selection.

What motor power options are available?

Motor power ranges from 0.25~15 kW. We offer standard IE2/IE3 efficiency motors and can customize voltage and frequency for your region (380V/50Hz, 460V/60Hz, etc.).

What materials are available for construction?

Standard construction materials include: FRP / Galvanized Steel. Custom materials such as SS316L, FRP, or special coatings are available upon request for corrosive or high-temperature environments.

Do you provide customization for specific applications?

Yes. As a direct manufacturer with 30+ years of experience, Keruite offers full customization including airflow, pressure, material, voltage, motor brand, and special features (explosion-proof, high-temperature, corrosion-resistant). Send us your specifications via the inquiry form.

What certifications does this product have?

This product holds the following certifications: ISO9001;CCC. Full certification documents are available upon request.

What is the typical lead time for production?

Standard models typically have a 15-25 day production lead time. Custom or made-to-order units may require 30-45 days depending on specifications and quantity. Contact us for an accurate delivery estimate based on your order.

Selection Guide

Follow these steps to select the right DWT-II Rooftop Centrifugal Fan model for your application.

1

Determine Required Airflow

Calculate the total airflow needed for your space. The DWT-II Rooftop Centrifugal Fan covers 500~40,000 m3/h. Consider room volume, air changes per hour (ACH), and ventilation standards (ASHRAE 62.1, EN 16798-1).

2

Calculate System Pressure

Account for duct resistance, filters, dampers, and fittings. The DWT-II Rooftop Centrifugal Fan handles pressure up to 200~700 Pa. Add 10-15% safety margin to your calculated total static pressure.

3

Select Motor Power

Available motor power: 0.25~15 kW. Choose IE3 high-efficiency motors for continuous operation. Ensure your power supply matches the rated voltage and frequency.

4

Choose Material & Coating

Standard: FRP / Galvanized Steel. For corrosive environments, upgrade to SS316L or FRP. For high-temperature applications (>150ยฐC), request heat-resistant coating and Class H motor insulation.

5

Confirm Installation & Control

Verify mounting orientation, inlet/outlet dimensions, and control requirements (VFD, two-speed, or on/off). Download the installation manual or contact our engineering team for assistance.

7

Request a Quotation

Submit your specifications via the inquiry form. Include airflow, pressure, voltage, application, and quantity. Our engineers will review and provide a detailed quotation within 24 hours.

Request a Quote Request a Technical Proposal Download Catalog

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Interested in DWT-II Rooftop Centrifugal Fan?

Send us your specifications โ€” airflow, pressure, voltage, and application โ€” for a tailored quotation within 24 hours.