Heavy Duty Floor Mounted Flameproof Exhaust Fan — Manufacturer & Supplier, India
Vayuvents manufactures Heavy Duty Floor Mounted Flameproof Exhaust Fans for Zone 1 & Zone 2 hazardous areas. IS 5572 / ATEX certified motors, 305 mm to 1,830 mm dia, IS 3588 compliant. Manufacturer & supplier in Mumbai. Call +91 90961 88703.
A Heavy Duty Floor Mounted Flameproof Exhaust Fan is an axial flow fan built on a rigid heavy-base floor-mounted frame with an IS 5572 / ATEX Group II certified flameproof (Ex-d) motor, designed specifically for extracting hazardous solvent vapours, flammable gases, and combustible dust from Zone 1 and Zone 2 classified areas under IS/IEC 60079.
Vayuvents manufactures these fans at our Vasai, Mumbai works with non-sparking aluminium or anti-static GRP impellers — eliminating ignition risk from mechanical sparking in the airstream. The motor's flameproof (Ex-d) enclosure contains any internal ignition and prevents flame propagation to the surrounding hazardous atmosphere, as required by IS 5572-2009.
Applications include automotive paint spray booths (Zone 1 inside booth), solvent storage and dispensing rooms, chemical plant processing buildings, petrochemical pump rooms, pharmaceutical solvent recovery areas, and offshore platform module ventilation — wherever a flammable or explosive atmosphere may exist and forced ventilation is required.
We supply with full hazardous area documentation including Ex certificate reference, motor flameproof certificate number, and conformance to IS/IEC 60079 for your PESO or ATEX installation permit requirements.
Key Features & Benefits
IS 5572 / ATEX Flameproof Motor
Group II Ex-d IIC certified flameproof motor — contains internal ignition and prevents flame propagation to Zone 1 & 2 hazardous atmospheres.
Non-Sparking Impeller
Aluminium alloy or anti-static GRP fan impeller — eliminates mechanical spark ignition risk in solvent vapour and flammable gas atmospheres.
Heavy-Base Floor Mounting
Rigid heavy-gauge MS base frame with anti-vibration mounts — provides stable operation without structure-borne vibration in chemical and process plants.
High Exhaust Airflow
Fan diameters 305 mm to 1,830 mm deliver 1,800 to 1,50,000 m³/hr — adequate dilution and purge ventilation for large hazardous area buildings.
IP55 / IP65 Enclosure
Motor enclosure IP55 as standard; IP65 available — withstands water wash-down and high-pressure cleaning common in process plant maintenance.
High-Temp Motor Option
Class H insulation and 55°C ambient rated motors available for hot process environments near furnaces and high-ambient summer conditions.
Custom Flange Options
Flanged casing outlet for direct duct connection to external exhaust stacks — eliminates open discharge in occupied or restricted spaces.
IS 3588 Performance Tested
Airflow and pressure performance tested per IS 3588-1987 with test certificate; flameproof motor certificate supplied with every unit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Fan Diameter Range | 305 mm to 1,830 mm |
| Motor Type | Flameproof Ex-d IIC (IS 5572 / IEC 60079-1) |
| Hazardous Area Class | Zone 1 & Zone 2, Gas Group IIA / IIB / IIC |
| Impeller Material | Non-sparking aluminium alloy / Anti-static GRP |
| Motor Power Range | 0.25 HP to 50 HP |
| Motor Enclosure | IP55 TEFC (IP65 optional) |
| Casing Material | MS fabricated, epoxy primer + finish coat |
| Base Mounting | Heavy-gauge MS base frame, anti-vibration mounts |
| Power Supply | 415V 3-Phase 50Hz |
| Standards | IS 3588-1987, IS 5572-2009 / IEC 60079, IS 4894 |
Airflow Performance — Model Range
| Sr. | Model | Dia (mm) | Motor (HP/Pole) | RPM | Free Air (m³/hr) | @10 mmWG | @15 mmWG | @20 mmWG | @25 mmWG | @30 mmWG |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | AX-75-28-120 | 305 | 0.75/2P | 2800 | 2,300 | 2,000 | 1,750 | 1,400 | — | — |
| 2 | AX-25-14-120 | 305 | 0.25/4P | 1440 | 1,800 | 1,500 | 1,450 | 1,320 | — | — |
| 3 | AX-50-14-150 | 385 | 0.50/4P | 1440 | 2,250 | 1,200 | — | — | — | — |
| 4 | AX-75-28-150 | 385 | 0.75/2P | 2850 | 5,000 | 4,100 | 3,900 | 3,700 | 3,300 | 3,000 |
| 5 | AX-50-14-180 | 460 | 0.50/4P | 1440 | 6,750 | 5,500 | 4,400 | — | — | — |
| 6 | AX-100-28-180 | 460 | 1.0/2P | 2880 | 9,000 | 7,500 | 6,200 | — | — | — |
| 7 | AX-100-14-240 | 612 | 1.0/4P | 1440 | 12,000 | 11,000 | 10,900 | 9,500 | — | — |
| 8 | AX-200-28-240 | 612 | 2.0/2P | 2800 | 15,500 | 13,600 | 13,000 | 11,300 | — | — |
| 9 | AX-150-14-280 | 712 | 1.5/4P | 1440 | 17,500 | 15,000 | 13,900 | 12,500 | 11,800 | 10,000 |
| 10 | AX-300-28-280 | 712 | 3.0/2P | 2880 | 20,000 | 18,500 | 16,900 | 16,000 | 15,000 | 14,500 |
| 11 | AX-300-96-360 | 915 | 3.0/6P | 960 | 45,000 | 42,000 | 39,000 | 37,000 | 34,000 | — |
| 12 | AX-500-14-360 | 915 | 5.0/4P | 1440 | 40,000 | — | — | 38,000 | 35,000 | 32,000 |
| 13 | AX-500-96-400 | 1015 | 5.0/6P | 960 | 48,000 | 45,000 | 43,000 | 42,000 | — | — |
| 14 | AX-750-14-400 | 1015 | 7.5/4P | 1440 | 55,000 | 49,000 | 47,000 | — | — | — |
| 15 | AX-750-96-480 | 1220 | 7.5/6P | 960 | 65,000 | — | 58,000 | 55,000 | 34,500 | 30,500 |
| 16 | AX-100-960-480 | 1220 | 10/6P | 960 | 69,000 | — | — | 65,000 | 61,500 | 60,000 |
| 17 | AX-150-960-600 | 1530 | 15/6P | 960 | 75,000 | — | — | — | — | 80,000 |
| 18 | AX-300-14-600 | 1530 | 30/4P | 1440 | 95,000 | — | — | — | — | — |
| 19 | AX-300-96-720 | 1830 | 30/6P | 960 | 1,20,000 | — | — | — | — | — |
| 20 | AX-500-14-720 | 1830 | 50/4P | 1440 | 1,50,000 | — | — | — | — | — |
- Fan selection based on air at 20°C, density 1.2 kg/m³.
- Performance and tolerance as per IS 3588-1987.
- Custom sizes and intermediate performance points available on request.
Product Images
Where It Is Used
- Automotive paint spray booths — Zone 1 hazardous area exhaust ventilation
- Solvent storage rooms and dispensing areas in chemical and pharmaceutical plants
- Chemical plant processing buildings handling flammable vapours and gases
- Petrochemical pump rooms, compressor rooms, and pipe galleries
- Pharmaceutical solvent recovery and API extraction areas
- Offshore platform module ventilation — Zone 2 classified accommodation modules
- Fuel storage and decanting areas in refineries and fuel depots
- Battery charging rooms — hydrogen evolution Zone 2 areas
- Flour mills, grain silos — combustible dust Zone 21 and 22 areas
- Fibre glass and polyester resin manufacturing — styrene vapour exhaust
- Underground parking with petrol/diesel fumes — CO dilution ventilation
- Mining surface facilities handling explosive dust or gas atmospheres
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View Details →FAQs — Heavy Duty Floor Mounted Flameproof Exhaust Fan
A flameproof exhaust fan has an Ex-d certified motor whose enclosure is designed to contain any internal ignition and prevent flame propagation to the surrounding atmosphere. It is required wherever the area is classified Zone 1 or Zone 2 under IS/IEC 60079 — paint spray booths, solvent stores, chemical processing buildings, petrochemical pump rooms, and battery charging rooms where a flammable gas or vapour atmosphere may exist.
IS 5572 is the Indian Standard for flameproof electrical equipment, published by BIS and administered by PESO (Petroleum and Explosives Safety Organisation). ATEX is the European directive (ATEX 2014/34/EU) for equipment in explosive atmospheres. Both require Ex-d testing but by different certifying bodies — CMRI Dhanbad or ERTL for IS 5572; DEKRA, SGS, or IECEx for ATEX. Vayuvents supplies IS 5572 certified units for Indian installations and can arrange ATEX certification for export projects.
No. Zone 2 areas require at minimum an Ex-e (increased safety) or Ex-d (flameproof) certified motor. Standard IP55 motors are not approved for any hazardous zone regardless of their enclosure rating. Vayuvents uses only IS 5572 / IEC 60079 certified flameproof Ex-d motors in all fans supplied for hazardous classified areas.
Vayuvents uses non-sparking aluminium alloy die-cast impellers as standard for all flameproof fans. Aluminium does not produce incendive sparks on contact with steel surfaces, meeting the non-sparking requirement of IS 5572 for Group IIA and IIB gas groups. For Group IIC hydrogen service, antistatic GRP (glass-reinforced plastic) impellers are used as they also eliminate electrostatic discharge risk.
Vayuvents supplies with each flameproof fan: (1) Ex-d motor flameproof certificate with certifying body reference and gas group, (2) IS 3588 airflow performance test certificate, (3) material certificates for impeller and casing, and (4) declaration of conformity to IS 5572. This documentation is required for PESO installation permit and factory inspection.
Yes. Combustible dust zones (flour, grain, wood dust, coal dust) are classified Zone 21 and 22 under IS/IEC 60079-10-2. These zones require Ex-tb or Ex-db certified equipment depending on the dust group. Vayuvents can supply fans with IP6X dust-tight enclosures and appropriate Ex certification for Zone 21/22 dust areas in flour mills, grain silos, and coal handling facilities.
Contact Vayuvents at enquiry@vayuvents.com or call +91 90961 88703. Share the hazardous area zone classification (Zone 1 or Zone 2), gas group (IIA, IIB, or IIC), required airflow in m³/hr or fan diameter, and installation location. We will recommend the correct certified model and provide a technical and commercial proposal within 24 hours.