Centrifugal DWDI Fan
Industrial Grade
High Efficiency
Quality Tested
Double Width Double Inlet fans for high volume air requirements.
Key Features
- High capacity
- Stable operation
- Dual inlet design
- Reduced footprint
- Balanced airflow
Pricing & Quote
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Custom Pricing
Quick Response
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Technical Specifications
Material
Stainless Steel / Mild Steel / FRP
Capacity
Customizable up to 100,000 CFM
Pressure
Up to 1500 mmWG
Temperature
Up to 450°C
Drive Type
Direct / Belt / Coupling
Efficiency
Up to 85%
* Specifications may vary based on custom requirements. Contact our engineering team for precise data.
Industrial Applications
Centrifugal DWDI Fan Price & Cost Information
The price of Centrifugal DWDI Fan varies based on multiple factors including specifications, capacity, materials, and customization requirements. At Primeairtech, we provide competitive pricing tailored to your exact industrial needs.
Factors Affecting Centrifugal DWDI Fan Pricing:
- Capacity & CFM Rating: Higher airflow capacity requires larger motors and impellers, affecting cost
- Material of Construction: Mild steel, stainless steel, or FRP options at different price points
- Pressure Requirements: High-pressure variants require reinforced construction
- Drive Type: Direct drive, belt drive, or coupling arrangements
- Special Features: VFD integration, high-temperature tolerance, explosion-proof variants
- Installation & Commissioning: On-site support and training services
Get Accurate Centrifugal DWDI Fan Price Quote
For the most accurate pricing on Centrifugal DWDI Fan, we recommend contacting our sales team with your specific requirements. We provide detailed quotations with:
- Competitive market rates guaranteed
- Detailed cost breakdown included
- Quick response within 2-4 hours
- Technical consultation at no extra cost
Frequently Asked Questions
Common Questions About Centrifugal DWDI Fan
Find answers to the most common questions asked by our clients.
DWDI stands for Double Width Double Inlet - a centrifugal fan design with two back-to-back impellers on a common shaft, each drawing air from opposite sides. Think of it as two single-width fans merged together. Key advantages: High CFM in compact space: Delivers nearly 2x the airflow of equivalent diameter single-inlet fan. Balanced shaft loads: Symmetrical design eliminates axial thrust on bearings, extending bearing life 30-50%. Lower speed: Achieves required CFM at lower RPM versus single inlet, reducing noise 3-5 dB. Space efficient: Shorter axial length than two separate fans, easier to install in constrained areas. Applications: HVAC systems, large air handling units, industrial ventilation requiring high CFM with moderate pressure (50-400 mmWC).
DWDI fans excel at high-volume applications: 5,000 CFM to 300,000+ CFM. Medium DWDI (5,000-30,000 CFM): Commercial HVAC, warehouse ventilation, assembly plant general ventilation. Large DWDI (30,000-100,000 CFM): Large commercial buildings, industrial facilities, central air handling units. Extra-large DWDI (100,000-300,000+ CFM): Power plants, cement plants, massive warehouse complexes, underground mines. Pressure range typically 50-400 mmWC - not designed for high-pressure applications. If you need >400 mmWC, consider single-inlet high-pressure design instead. DWDI shines when requirement is maximum CFM with moderate pressure - exactly the profile of most large HVAC and general ventilation systems.
Common DWDI applications: Commercial HVAC: Air handling units (AHUs) for large buildings - supply and return air. Industrial ventilation: General factory ventilation requiring 20,000+ CFM. Power plants: Cooling tower fans, condenser air circulation, turbine ventilation. Cement plants: Clinker cooler fans, raw mill ventilation (clean air side). Mining: Main ventilation fans for underground mines. Tunnels: Ventilation during construction and operation. Large warehouses: Air circulation for temperature control. Data centers: Large-scale cooling air movement. Agricultural: Crop drying facilities, grain storage ventilation. Best applications are high-volume, clean air, moderate pressure - if handling dust-laden or corrosive air, access for impeller cleaning becomes challenging due to dual-inlet design requiring more disassembly.
DWDI versus SWSI (Single Width Single Inlet) comparison: CFM capacity: DWDI delivers ~1.9x CFM for same fan diameter and speed. Efficiency: Comparable efficiency (both 75-82% peak) but DWDI achieves it at lower speed = quieter. Noise: DWDI typically 3-5 dB quieter for equivalent CFM due to lower RPM. Size: DWDI has larger axial dimension but same diameter - total volume ~1.3x versus SWSI. Cost: DWDI costs 20-40% more due to dual impellers and more complex construction. Maintenance: Similar bearing maintenance, but impeller cleaning requires more disassembly. Application sweet spot: Choose DWDI when CFM >15,000, pressure <400 mmWC, and initial cost premium acceptable for quieter, more compact (diameter-wise) solution. Choose SWSI for <15,000 CFM, >400 mmWC pressure requirement, or budget constraints.
DWDI-specific installation requirements: Inlet ductwork: Must provide equal inlet conditions to BOTH sides - asymmetric ductwork causes flow imbalance, increased vibration. Install turning vanes if elbows are near inlets. Space clearance: Need access clearance on both inlet sides for filter changes, inspection - minimum 1.2-1.5x fan diameter clearance each side. Foundation: Heavier than SWSI (dual impellers + larger housing) - design for 1.5-2x fan weight to handle dynamic loads. Use reinforced concrete minimum 200mm thick. Vibration isolation: Critical due to higher mass - use proper spring or rubber isolators sized for fan weight plus 20% safety factor. Drive system: Usually belt-driven due to high power - ensure proper motor/blower alignment within 0.05mm. Balancing: Both impellers must be dynamically balanced together as assembly - field imbalance causes significant vibration due to dual rotating masses. Professional installation recommended for large DWDI units.
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