When water treatment plant operators and consultants across India need reliable, corrosion-resistant, and efficient air handling solutions for their facilities, they turn to Shivam Engineering & Fabrication. As a leading axial flow fan manufacturer for water treatment plants, we have supplied hundreds of units to municipal sewage treatment plants (STPs), industrial effluent treatment plants (ETPs), and water treatment plants (WTPs) across the country. Our axial flow fans are engineered for durability, corrosion resistance, and continuous operation – perfectly suited for the aggressive environments of water and wastewater treatment.

Why Water Treatment Plants Need Corrosion-Resistant Axial Flow Fans

Water and wastewater treatment plants operate in corrosive environments with exposure to hydrogen sulfide (H₂S), chlorine (Cl₂), moisture, and various chemicals. Standard fans fail quickly in such environments. Our specially designed axial flow fans feature:

• Corrosion-Resistant Construction – SS304, SS316, or epoxy-coated MS for maximum durability.
• Low Noise Operation – Precision-balanced impellers for quieter operation in residential areas.
• Weatherproof Construction – Suitable for outdoor installation on roofs and aeration tanks.
• Explosion-Proof Options – For chlorine rooms and methane-rich areas.
• Low Maintenance – Designed for continuous 24/7 operation with minimal servicing.
• Easy Installation – Wall-mounted, roof-mounted, or duct-mounted configurations.

Key Applications of Axial Flow Fans in Water Treatment Plants

1. Aeration Tank Ventilation

Provides ventilation over aeration tanks to remove odorous air and prevent vapor accumulation. Requires corrosion-resistant construction and low-noise design for residential areas.

2. Blower Room Cooling & Exhaust

Removes heat generated by aeration blowers (centrifugal/positive displacement blowers) and provides fresh air supply for combustion and cooling. Medium pressure fans with adequate CFM based on blower HP.

3. Chlorine Room Exhaust

Critical safety application for exhausting chlorine gas (heavier than air) from chlorination rooms. Requires SS316 construction, low-level exhaust pickups, spark-resistant impellers, and explosion-proof motors.

4. Chemical Storage Area Ventilation

Ventilation of rooms storing coagulants, flocculants, acids, alkalis, and other treatment chemicals. Requires corrosion-resistant construction appropriate for the chemicals stored.

5. Grit Chamber Ventilation

Removal of odorous air from grit chambers in preliminary treatment.

6. Sludge Drying Bed Ventilation

Exhaust of odorous air and moisture from sludge drying beds and sludge handling areas.

7. Screening & Pump House Ventilation

Ventilation of screening chambers, pump rooms, and valve chambers to remove humidity and odorous air.

8. General Plant Ventilation

Fresh air supply and exhaust from laboratories, control rooms, administration buildings, and other occupied areas.

Axial Fan Types for Water Treatment Plants

Material Options for Water Treatment Environments

Depending on the application and exposure conditions, Shivam Engineering & Fabrication offers different construction materials:

• Stainless Steel SS304 – Standard for most water treatment applications. Excellent corrosion resistance for H₂S, moisture, and mild chemical exposure.
• Stainless Steel SS316 / SS316L – For highly corrosive applications – chlorine rooms, chemical storage (acids/alkalis), coastal STPs.
• Epoxy-Coated Mild Steel (MS) – For less corrosive areas like administration buildings, dry chemical storage, and control rooms.
• FRP (Fiber Reinforced Plastic) – For maximum corrosion resistance in aggressive chemical environments – available on request.
• Cast Aluminum Impellers – Lightweight, corrosion-resistant, high-efficiency aerofoil design – standard for most models.

Chlorine Room Exhaust Axial Fans

For critical chlorine room exhaust applications, Shivam Engineering & Fabrication offers specialized axial fans with the following features:

• SS316 Construction – Maximum corrosion resistance against chlorine gas.
• Low-Level Exhaust Pickup – Chlorine gas is heavier than air; exhaust must be taken from near floor level (typically 300-450mm above floor).
• Spark-Resistant Impeller – Cast aluminum or SS316 construction.
• Flameproof Motor (Exd) – For hazardous gas areas.
• Explosion-Proof Construction – As per safety standards for chlorine handling.
• Separate Supply Fan – To provide fresh air makeup near ceiling level.
• Emergency Backup – Provision for dual fans with standby capability.

Technical Specifications

• Air Flow Capacity: 500 CFM to 50,000+ CFM (850 m³/hr to 85,000+ m³/hr)
• Static Pressure:
  • General Ventilation: Up to 30 mmWG (300 Pa)
  • Blower Rooms: Up to 50 mmWG (500 Pa)
  • Ducted Systems: Up to 60 mmWG (600 Pa)
• Power Rating: 0.37 kW to 30 kW (0.5 HP to 40 HP)
• Motor Poles: 4 Pole, 6 Pole, and 8 Pole variants
• Fan Diameter: 250 mm to 1,200 mm (10" to 48")
• Blade Material: Die-cast aluminum (LM-6) with aerofoil design
• Blade Angle: Fixed pitch (25°-35°) for standard applications
• Mounting: Wall mounted, roof mounted, or duct mounted
• Motor Options: Standard, energy-efficient IE3, flameproof (Exd) for chlorine rooms, single phase (up to 5 HP), VFD compatible
• Protection: IP55 for outdoor/wet applications
• Testing Standard: IS:3588-1987

Roof Exhaust Axial Fans for Water Treatment Plants

For water treatment plants requiring roof-mounted exhaust solutions, Shivam Engineering & Fabrication offers specialized roof exhaust axial fans featuring:

• SS304 construction for corrosion resistance in wet environments
• Upblast configuration to direct exhaust air upward, away from roof surfaces
• Weatherproof construction with rain hood and bird screen
• Ideal for exhausting odorous air from sludge areas, chemical storage, and process buildings
• Low-noise options for plants near residential areas

Quality Assurance & Testing

Every axial flow fan 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 as per IS:3588-1987
• Vibration and noise level measurement
• Weatherproof integrity test (for IP55/IP56 rated units)
• Coating thickness verification (for coated models)
• Material certification for SS304/SS316 (Mill Test Certificate)
• Spark test (for chlorine room fans)

Serving Water Treatment Plants Across India

Shivam Engineering & Fabrication supplies axial flow fans to municipal STPs, industrial ETPs, and water treatment plants in:

• Municipal Sewage Treatment Plants (STPs): Delhi-NCR, Mumbai, Chennai, Kolkata, Bengaluru, Hyderabad, Ahmedabad, Pune, Surat, Jaipur, Lucknow, Kanpur, Nagpur, Indore, Bhopal, Visakhapatnam, Patna, Vadodara
• Industrial ETPs (Common & Captive):
  • Gujarat: Ahmedabad, Ankleshwar, Vapi, Vadodara, Surat (textile, chemical, pharma)
  • Maharashtra: Mumbai, Pune, Nashik (pharma, chemical, automotive)
  • Tamil Nadu: Tiruppur, Coimbatore (textile), Chennai (pharma)
  • Uttar Pradesh: Kanpur (leather), Noida (pharma, general)
  • Haryana: Faridabad, Gurugram (general manufacturing)
  • Telangana: Hyderabad (pharma bulk drugs)
  • Punjab: Ludhiana (textile, general)
  • Karnataka: Bengaluru (electronics, pharma)
• Water Treatment Plants (WTPs): Across all states for municipal drinking water supply
• Sewage Treatment Plants (STPs) for Residential/Commercial Complexes: Hotels, hospitals, shopping malls, housing societies, SEZs, IT parks

Get Your Axial Flow Fan from a Trusted Manufacturer

As one of the leading axial flow fan manufacturers for water treatment plants, Shivam Engineering & Fabrication provides:

• Free technical consultation and fan selection assistance
• Customised designs for STP, ETP, and WTP applications
• Corrosion-resistant SS304, SS316, and epoxy-coated MS options
• Specialized chlorine room exhaust fans with low-level pickup and Exd motors
• Weatherproof roof-mounted fans with rain hoods and bird screens
• Low-noise options for plants near residential areas
• Wall-mounted, roof-mounted, and duct-mounted configurations
• Competitive lead times and pan-India delivery
• After‑sales support and on-site commissioning
• Material certifications (MTC) with every fan

Contact Mr. Nitin Panchal at +91-90168 77642 or email shivamenggfabricators@gmail.com. Let Shivam Engineering & Fabrication engineer the perfect axial flow fan for your water treatment facility.

* All specifications and performance data are based on standard operating conditions. Custom requirements are engineered per client process parameters.