ID Fan | FD Fan | PA Fan
Industrial Grade
High Efficiency
Quality Tested
Induced Draft, Forced Draft, and Primary Air fans for boiler and furnace applications.
Key Features
- High temperature resistance
- Heavy duty construction
- Wear resistant liners
- Abrasion protection
- Extended service life
Pricing & Quote
Get customized pricing based on your exact specifications. Our team provides competitive quotes within 2-4 hours.
Custom Pricing
Quick Response
Best Rates
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
ID Fan | FD Fan | PA Fan Price & Cost Information
The price of ID Fan | FD Fan | PA 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 ID Fan | FD Fan | PA 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 ID Fan | FD Fan | PA Fan Price Quote
For the most accurate pricing on ID Fan | FD Fan | PA 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 ID Fan | FD Fan | PA Fan
Find answers to the most common questions asked by our clients.
ID Fan (Induced Draft): Extracts flue gases from boiler, creating negative pressure pulling combustion gases through boiler and into stack/chimney. Handles hot (150-250°C), corrosive exhaust gases with fly ash. Located after economizer, before stack. FD Fan (Forced Draft): Pushes fresh combustion air into boiler furnace, creating positive pressure. Handles ambient air, simpler duty than ID fan. Located before air preheater. PA Fan (Primary Air): Supplies high-velocity air to pulverize and transport coal from mill to burner. Handles hot air (250-350°C) with coal dust. Essential for pulverized coal boilers. Together, these three fans form the complete boiler draft system - FD supplies combustion air, PA handles coal transport, ID exhausts flue gases. Each has distinct operating conditions requiring specific design considerations.
Specifications vary by boiler capacity: Small boilers (2-10 TPH): ID fan: 5,000-25,000 CFM, 150-300 mmWC, 15-50 HP. FD fan: 4,000-20,000 CFM, 100-200 mmWC, 10-40 HP. Medium boilers (10-50 TPH): ID fan: 25,000-100,000 CFM, 250-500 mmWC, 50-200 HP. FD fan: 20,000-80,000 CFM, 150-350 mmWC, 40-150 HP. PA fan: 5,000-30,000 CFM, 400-800 mmWC, 40-150 HP. Large boilers (50-200 TPH): ID fan: 100,000-400,000 CFM, 400-800 mmWC, 200-1000 HP. FD fan: 80,000-350,000 CFM, 250-500 mmWC, 150-750 HP. PA fan: 30,000-150,000 CFM, 600-1200 mmWC, 150-600 HP. PA fans require highest pressure (coal pulverizing + transport), ID fans highest temperature (direct flue gas exposure), FD fans simplest duty (clean ambient air).
Material selection based on gas characteristics: FD Fan (ambient air): Mild steel (MS) construction with epoxy coating - simplest, most economical. Operating temp <60°C. ID Fan (hot corrosive flue gas): High-temperature MS with special coatings (for <250°C) or Corten steel (better corrosion resistance). Impeller often SS304/SS316 for corrosion protection. May require erosion-resistant coating or hardened wear surfaces due to fly ash. PA Fan (hot air + coal dust): High-temp MS or special alloy steel impeller (handling 250-350°C + erosive coal particles). Requires hardened blade surfaces or replaceable wear liners. All three fans typically use high-temperature bearings with water/oil cooling and extended shaft construction to keep bearings away from hot gas zones. Specification depends on actual flue gas analysis (SO2, NOx, chlorides) and coal ash properties (SiO2 content, particle hardness).
Common issues by fan type: ID Fan problems: (1) Erosion/corrosion from fly ash and acidic gases - Solution: corrosion-resistant materials, erosion coating, regular inspection schedules. (2) High temperature beyond design - Solution: ensure economizer functioning properly, verify gas temperature, may need water-cooled bearings. (3) Excessive vibration from ash buildup - Solution: periodic impeller cleaning, continuous ash monitoring. FD Fan problems: (1) Motor overload if damper opens too much - Solution: damper control interlock, VFD for precise control (2) Insufficient airflow if inlet filter clogged - Solution: regular filter maintenance, differential pressure monitoring. PA Fan problems: (1) Impeller wear from coal particles - Solution: hardened impeller surfaces, regular thickness measurements. (2) Mill fire backflow - Solution: proper isolation dampers, emergency shutdown interlocks. (3) Pulsating flow from mill operation - Solution: soft-start systems, suction stabilizers. All fans: implement condition monitoring (vibration, bearing temp, motor current) for predictive maintenance.
Yes, VFD retrofit is highly recommended and provides substantial benefits: Energy savings: Boiler load varies throughout day/season - VFD allows speed modulation matching actual load. Typical savings: 25-45% energy reduction versus constant-speed with damper control. For a 300 HP ID fan running 8000 hrs/year, saves ₹15-25 lakhs annually in electricity. Better boiler control: Precise draft/pressure control improves combustion efficiency, reduces fuel consumption 2-3%. Reduced mechanical stress: Soft-start eliminates mechanical shock, extends bearing/impeller life. Retrofit requirements: Verify motors are standard induction or inverter-duty rated (most compatible). Size VFD at 110% motor nameplate HP. Install harmonic filters for power quality. Minimum operating speed 35-40% maintains motor cooling. Payback: Investment typically 8-24 months through combined energy savings (both fan power + improved boiler efficiency). We provide detailed energy audit and ROI calculations before retrofit. Critical: integrate VFD controls with boiler automation system for optimal performance.
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