Power & Boilers
Shivam Engineering & Fabrication manufactures high-performance Forced Draught (FD), Induced Draught (ID) and combustion air blowers for thermal power plants, boilers, and captive power generation units.
Perfect Solutions for
Power & Boiler Plants
Need FD, ID or PA Fans for Your Power Plant?
High-efficiency, heavy-duty blowers engineered for reliable performance in thermal power and boiler applications.
High Pressure Blower for Power Plants & Boilers
Heavy-duty, high-efficiency high pressure centrifugal blowers engineered specifically for thermal power plants and industrial boilers – FD fans, PA fans, and combustion air blowers.
When power plant operators and boiler manufacturers across India need reliable, heavy-duty, high pressure air handling solutions for combustion and coal transport, they turn to Shivam Engineering & Fabrication. As a leading high pressure blower manufacturer for power plants and industrial boilers, we have supplied hundreds of units to thermal power plants, captive power plants, and industrial boiler houses across the country. Our high pressure blowers are engineered for continuous 24/7 operation in demanding conditions – perfectly suited for power generation applications.
Why Power Plants Need High Pressure Centrifugal Blowers
Power plants and industrial boilers require high pressure air for combustion and pulverized coal transport. Our specially designed high pressure blowers feature:
- High Pressure Capability – Up to 2,500+ mmWC for PA fan applications.
- High Efficiency Impellers – Backward-curved and airfoil designs for optimal efficiency.
- Heavy-Duty Bearings – For continuous 24/7 operation with high reliability.
- High-Temperature Capability – Up to 150-200°C for preheated combustion air.
- Abrasion-Resistant Options – For coal dust handling in PA fan applications.
- VFD Ready – For variable flow control and energy savings.
- Low Maintenance – Designed for long service intervals in power plant service.
Key Applications of High Pressure Blowers in Power Plants & Boilers
1. Forced Draft (FD) Fan
Supplies combustion air to the boiler furnace. Handles clean air at ambient temperature. High volume, medium to high pressure (500-1,200 mmWC). Mounted before the air preheater. Critical for efficient combustion.
2. Primary Air (PA) Fan
Supplies high pressure air to the coal pulverizers for drying and transporting pulverized coal to the burner. Highest pressure application in a power plant (800-2,500+ mmWC). Handles clean, preheated air (up to 150°C).
3. Secondary Air (SA) Fan
Supplies additional combustion air to ensure complete burning. Similar to FD fan but may have different pressure requirements. Mounted after the air preheater in some configurations. Pressure range: 400-800 mmWC.
4. Combustion Air Blower for Industrial Boilers
For smaller industrial boilers (process industry), single-stage high pressure blowers supplying combustion air for coal, biomass, or oil/gas-fired boilers. Pressure range: 400-1,000 mmWC depending on boiler type and size.
Working Principle – High Pressure Centrifugal Blower
High pressure centrifugal blowers use a high-speed impeller with backward-curved or airfoil blades to generate significant static pressure. Air enters axially through the inlet, is accelerated radially by the impeller, and is then discharged through a scroll housing. The high rotational speed and precision impeller design enable pressure generation up to 2,500+ mmWC, making them ideal for FD, PA, and SA fan duties in power plants and industrial boilers.
Power Plant Fan Types & Specifications
| Fan Type | Purpose | Pressure Range | Temperature | Key Feature |
|---|---|---|---|---|
| FD Fan (Forced Draft) | Combustion air supply | 500-1,200 mmWC | Ambient-150°C | High efficiency airfoil impeller |
| PA Fan (Primary Air) | Coal pulverizer air | 800-2,500+ mmWC | Up to 150°C | Highest pressure, abrasion-resistant |
| SA Fan (Secondary Air) | Additional combustion air | 400-800 mmWC | 150-250°C | High temperature capability |
| Industrial Boiler FD | Process boiler combustion | 400-1,000 mmWC | Ambient-150°C | Compact design |
PA Fan (Primary Air Fan) – For Pulverized Coal Transport
The Primary Air (PA) fan is the most demanding application in a coal-fired power plant, requiring high pressure to overcome the resistance of the coal pulverizer and transport piping. Key features of our PA fans include:
- High Pressure Capability: Up to 2,500+ mmWC (25,000+ Pa) for long-distance pulverized coal transport.
- Abrasion-Resistant Construction: Hardox/AR plate or radial tip impellers for coal dust handling.
- High-Temperature Bearings: For preheated air up to 150°C from the air preheater.
- Heavy-Duty Shaft Seals: To prevent coal dust ingress.
- High Efficiency: Backward-curved impeller design minimizes power consumption.
Technical Specifications
- Air Flow Capacity: 5,000 CFM to 300,000+ CFM (8,500 m³/hr to 500,000+ m³/hr)
- Static Pressure:
- FD / Industrial Boiler Fans: 400-1,200 mmWC (4,000-12,000 Pa)
- PA Fans: 800-2,500+ mmWC (8,000-25,000+ Pa)
- SA Fans: 400-800 mmWC (4,000-8,000 Pa)
- Power Rating: 10 HP to 2,000+ HP (7.5 kW to 1,500+ kW)
- Operating Temperature:
- FD/PA Fans: Ambient to 150°C
- SA Fans: 150-250°C
- Industrial Boiler: Ambient to 150°C
- Impeller Types: Backward curved, airfoil (highest efficiency), radial tip (abrasion resistance)
- Drive Types: Direct coupled (standard), VFD compatible for energy savings
- Bearing Type: Heavy-duty ball or roller bearings with cooling options
- Mounting: Base frame mounted with vibration isolators
- Motor Options: Standard, energy-efficient IE3/IE4, VFD ready
- Material Options: Heavy-duty MS, Hardox/AR plate (abrasive applications)
Power Plant Fan Sizing Guide
| Boiler Capacity (TPH) | FD Fan CFM | FD Fan Pressure | PA Fan CFM (approx) | PA Fan Pressure |
|---|---|---|---|---|
| 10 TPH | 5,000-8,000 CFM | 400-600 mmWC | 2,000-4,000 CFM | 800-1,200 mmWC |
| 25 TPH | 12,000-20,000 CFM | 500-800 mmWC | 5,000-10,000 CFM | 1,000-1,500 mmWC |
| 50 TPH | 25,000-40,000 CFM | 600-1,000 mmWC | 10,000-20,000 CFM | 1,200-1,800 mmWC |
| 100 TPH | 50,000-80,000 CFM | 700-1,100 mmWC | 20,000-35,000 CFM | 1,500-2,200 mmWC |
| 200+ TPH | 100,000+ CFM | 800-1,200 mmWC | 40,000-80,000 CFM | 1,800-2,500+ mmWC |
Industrial Boiler High Pressure Blowers (Process Industry)
For smaller industrial boilers in process industries, we offer compact high pressure blowers with the following features:
- Boiler Types: Coal-fired, biomass (rice husk, wood chips, bagasse), petcoke, oil/gas-fired
- Pressure Range: 400-1,000 mmWC depending on boiler grate type (chain grate, fluidized bed, etc.)
- CFM Range: 5,000-100,000 CFM
- Power Range: 10-300 HP
- Key Features: Compact design, VFD ready, energy-efficient impellers
Quality Assurance & Testing
Every high pressure blower leaving the Shivam Engineering & Fabrication Ahmedabad factory undergoes:
- Dynamic balancing of impeller (ISO 1940 G-6.3 grade, G-4.0 for high-speed units)
- Performance testing for airflow, pressure, and power consumption
- Vibration and noise level measurement
- High-temperature run test (for SA fans and preheated air applications)
- Pressure test (leak test) for gas-tight applications
- Heavy-duty structural integrity test
Benefits of High Pressure Blowers for Power Plants & Boilers
- High Pressure Capability: Up to 2,500+ mmWC for PA fans and pulverized coal transport.
- High Efficiency: Airfoil and backward-curved impellers for optimal power consumption.
- Heavy-Duty Construction: Designed for 24/7 continuous power plant operation.
- Abrasion Resistance: Hardox/AR plate and radial tip impellers for PA fans handling coal dust.
- VFD Ready: For variable flow control and significant energy savings (15-30%).
- High Temperature Capability: Up to 250°C for SA fans.
- Low Maintenance: Heavy-duty bearings and robust design for long service life.
Serving Power Plants Across India
Shivam Engineering & Fabrication supplies high pressure blowers to thermal power plants, captive power plants, and industrial boilers in:
- Maharashtra: Mumbai, Pune, Nashik, Nagpur, Chandrapur, Koradi, Paras, Bhusawal (MSEB, Tata Power, Adani, Reliance)
- Gujarat: Ahmedabad, Vadodara, Surat, Rajkot, Jamnagar, Mundra (GSECL, Adani Power, Tata Power, Torrent)
- Madhya Pradesh: Satna, Singrauli, Bina, Khandwa (NTPC, MPPGCL)
- Chhattisgarh: Korba, Raipur, Raigarh (NTPC, CSEB, JSPL)
- Odisha: Angul, Talcher, Jharsuguda (NTPC, OPGC, Vedanta)
- Telangana: Ramagundam, Kothagudem (NTPC, TSPGENCO)
- West Bengal: Durgapur, Kolaghat, Farakka, Bakreshwar (WBPDCL, DVC)
- Tamil Nadu: Chennai, Tuticorin, Neyveli (TNEB, NLC, NTPC)
- Andhra Pradesh: Vijayawada, Visakhapatnam, Krishnapatnam (APGENCO, NTPC)
- Uttar Pradesh: Singrauli, Anpara, Dadri, Unnao (NTPC, UPRVUNL)
- Rajasthan: Kota, Chhabra, Suratgarh, Banswara (RVUNL)
- Karnataka: Raichur, Bellary, Kudgi (KPCL, NTPC)
Industrial Boiler Hubs (Process Industry): Ahmedabad (textile), Ludhiana (textile), Tiruppur (textile), Mumbai (chemical), Vadodara (chemical), Hyderabad (pharma), Delhi NCR (various).
Frequently Asked Questions – High Pressure Blower for Power Plants & Boilers
1. What is the difference between an FD fan and a PA fan?
FD (Forced Draft) fan supplies combustion air to the boiler furnace at moderate pressure (500-1,200 mmWC). PA (Primary Air) fan supplies high pressure air (800-2,500+ mmWC) to coal pulverizers for drying and transporting pulverized coal to the burners. PA fans require significantly higher pressure due to resistance from the coal mill and transport piping.
2. What pressure is required for a PA fan in a 100 TPH boiler?
For a 100 TPH coal-fired boiler with typical pulverized coal system, the PA fan typically requires 1,500-2,200 mmWC pressure at 20,000-35,000 CFM airflow, depending on coal mill type, transport distance, and pipe diameter.
3. Can your high pressure blowers handle preheated combustion air?
Yes. For FD and PA fans handling preheated air (150-200°C from air preheaters), we offer high-temperature bearings, cooling options, and heat-resistant materials. For SA fans handling even higher temperatures (200-250°C), special high-temperature designs are available.
4. Do you offer VFD-controlled high pressure blowers for power plants?
Absolutely. VFD (Variable Frequency Drive) control allows matching fan speed to actual boiler load, providing significant energy savings (15-30%) – particularly valuable for FD and PA fans that operate at varying loads throughout the day.
5. How can I get a quote for a high pressure blower for my power plant or boiler?
Call Mr. Nitin Panchal at +91-90168 77642 or email shivamenggfabricators@gmail.com. Provide boiler capacity (TPH), fan type (FD/PA/SA), required pressure (mmWC), CFM/m³/hr, and fuel type – we'll respond within 24 hours.
Get Your High Pressure Blower from a Trusted Manufacturer
As one of the leading high pressure blower manufacturers for power plants and industrial boilers, Shivam Engineering & Fabrication provides:
- Free technical consultation and fan selection assistance
- Customised designs for FD, PA, and SA fans for any boiler size (1 TPH to 1,000+ TPH)
- High pressure designs up to 2,500+ mmWC for PA fan applications
- High-efficiency airfoil and backward-curved impellers
- Abrasion-resistant construction (Hardox/AR plate) for PA fans
- High-temperature capability for preheated combustion air (up to 250°C)
- VFD-ready units for energy savings (15-30% reduction)
- Heavy-duty construction for 24/7 continuous operation
- Competitive lead times and pan-India delivery
- After‑sales support, on-site commissioning, and maintenance
- Ducting and accessories (dampers, expansion joints) optional
Contact Mr. Nitin Panchal at +91-90168 77642 or email shivamenggfabricators@gmail.com. Let Shivam Engineering & Fabrication engineer the perfect high pressure blower for your power plant or industrial boiler.
* All specifications and performance data are based on standard operating conditions. Custom requirements are engineered per client process parameters.