What is the difference between a centrifugal fan and an axial fan for industrial ventilation in Saudi Arabia?

Centrifugal fans and axial fans serve different duties in industrial ventilation systems. Centrifugal fans (radial-flow) generate high static pressure relative to airflow and are suited for systems with ductwork resistance — HVAC supply and return air systems, dust extraction, fume exhaust, and bag filter air supply. They handle particulate-laden, high-temperature, and chemically aggressive airstreams well, and are available in backward-curved (BC), forward-curved (FC), and radial-blade (RB) impeller types. Axial fans move large volumes of air at low static pressure and are most efficient for free-air or low-resistance duties — cooling towers, air-cooled heat exchangers (ACHE), rooftop ventilation, and tunnel ventilation. In Saudi Arabia's high-ambient-temperature environment, both types must be sized for air density at 45–55°C to ensure correct duty point performance. Gulf Union Ozone stocks both types and can provide fan curve data and selection assistance for KSA project requirements.

How do I select an ATEX-rated fan for hazardous area ventilation in KSA oil and gas facilities?

ATEX fan selection for hazardous area ventilation in Saudi Arabia oil and gas facilities requires defining the explosion group and temperature class of the gas or vapour present, and the zone classification (Zone 1 or Zone 2 for gas; Zone 21 or Zone 22 for dust). The fan motor must carry the appropriate ATEX marking — for example, Ex d IIB T3 Gb for Zone 1 hydrocarbon vapour service. Non-sparking fan construction is mandatory: fan impellers and housings must use ATEX-approved non-sparking materials (aluminium alloy impellers against cast iron housings maintain a minimum 13% Mg clearance to prevent incendive sparks). For Zone 2 applications, Ex e (increased safety) motors are typically acceptable; Zone 1 requires Ex d (flameproof) or Ex p (pressurised) enclosures. Fan blade clearances must comply with ATEX Directive 2014/34/EU (ATEX 95) and IEC 60079-0. Gulf Union Ozone supplies ATEX-certified centrifugal and axial fans for Saudi Arabia oil and gas facilities and can provide ATEX certificates and IECEx documentation on request.

Which is better for energy saving on industrial fans in Saudi Arabia — VFD speed control or inlet vane control?

Variable frequency drive (VFD) speed control is significantly more energy-efficient than inlet vane control for fan flow modulation, typically saving 30–50% electrical energy at 70–80% of design flow compared to 10–20% savings with inlet vanes. VFDs reduce fan speed proportionally to flow demand — fan power follows the cube law, so even a 20% reduction in speed reduces power by approximately 49%. This makes VFD control the preferred choice for Saudi Arabia industrial applications where electricity costs and cooling loads are high, and where fans operate at part-load for extended periods (HVAC systems, cooling tower fans). Inlet vane control (IVC) adjusts airflow by pre-swirling air into the fan inlet and is lower in capital cost, but the energy savings are moderate and the vanes require maintenance in dusty or contaminated airstreams. For new installations in KSA, VFDs on both supply and return fans are recommended under ASHRAE 90.1 and Saudi Energy Efficiency Program (SEEP) guidelines. Gulf Union Ozone supplies both VFD panels and fans as complete assembled units from Jeddah.

Industrial Fans & Blowers — Saudi Arabia

Industrial Fans & Blowers Supplier Saudi Arabia — Centrifugal Fans, Axial Fans & High-Pressure Blowers In Stock

Gulf Union Ozone stocks a comprehensive range of industrial fans and blowers for HVAC, process ventilation, dust extraction, combustion air, and pneumatic conveying systems across Saudi Arabia. Our inventory covers backward-curved and forward-curved centrifugal fans (SISW and DIDW), axial flow fans (propeller, tube-axial, vane-axial), inline centrifugal fans, high-pressure centrifugal blowers, positive displacement (Roots-type) blowers, and a complete range of fan accessories including VFDs, silencers, flexible connections, anti-vibration mounts, and motorised dampers. Airflow range 100 m³/h to 500,000 m³/h. AMCA 210, ISO 5801, ATEX certified. ISO 9001:2015 certified (CR 4030570569). Dispatched from Jeddah warehouse to all KSA regions.

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Industrial fans and blowers — centrifugal fans, axial fans and high-pressure blowers stocked in Jeddah Saudi Arabia — Gulf Union Ozone

Industrial Fans & Blowers Categories

Product Types in Stock

Gulf Union Ozone carries six core categories of industrial fans and blowers for Saudi Arabia HVAC, industrial ventilation, process air, pneumatic conveying, and wastewater treatment applications. All fans AMCA 210 or ISO 5801 performance certified and supplied with fan curve data and motor certificates.

Type 01

Centrifugal Fans

Backward-curved (BC), forward-curved (FC), and radial-blade (RB) impeller designs to suit different system resistance and airflow profiles. Available as single inlet single width (SISW) for compact installations and double inlet double width (DIDW) for higher airflow duty. Housings in grey cast iron (GCI), mild steel, and SS 316L for corrosive and high-humidity environments. Applications include HVAC supply and return air, process ventilation, dust extraction, fume exhaust, and bag filter air supply. AMCA 210 performance certified. Widely supplied to Saudi Arabia factories, hospitals, data centres, and process plants.

Type 02

Axial Flow Fans

Propeller fans (wall and panel mount), tube-axial, and vane-axial designs with aerofoil aluminium blades for maximum aerodynamic efficiency. Variable pitch on running (VPOR) models available for stepless airflow control without VFD. IP55 motor protection for outdoor and humid environments. Applications include cooling tower fans, air-cooled heat exchanger (ACHE) replacement fans, rooftop ventilation, and tunnel and carpark ventilation. Widely supplied for Saudi Aramco ACHE fan replacement projects and refineries requiring ATEX-rated axial fan assemblies for hazardous area installation.

Type 03

Inline Centrifugal Fans

Mixed-flow inline fans for high static pressure in long duct runs where space constraints prevent installation of a standard centrifugal fan unit. Circular and rectangular housing configurations. Low-noise, backward-curved mixed-flow impeller. Applications include kitchen exhaust systems, carpark ventilation shafts, corridor and stairwell pressurisation, and riser ventilation in KSA commercial buildings, hospitals, and residential towers. Motor IP55, insulation Class F, 400V/50Hz or 380V/60Hz. Supplied with integral access door for impeller inspection and cleaning.

Type 04

High-Pressure Centrifugal Blowers

Backward-curved impeller centrifugal blowers for high static pressure duty (1,000–5,000 Pa). Available in sizes DN200 to DN1200. Heavy-duty steel construction with belt-drive or direct-drive configurations. Applications include pneumatic conveying systems, industrial process air supply, combustion air for gas and oil burners, bag filter and cyclone air supply, and drying systems. Capable of handling clean, mildly dusty, and slightly corrosive airstreams. Widely supplied to Saudi Arabia petrochemical plants, cement facilities, and industrial process installations requiring reliable high-pressure air at elevated flow rates.

Type 05

Positive Displacement (PD) Blowers

Roots-type rotary lobe blowers for constant-volume, pressure-independent airflow duty. Operating pressure 0.5 bar to 1.0 bar (pressure service) and vacuum to −500 mbar (vacuum service). Aluminium and cast iron construction; ATEX options available. Applications include aeration in wastewater treatment plants and sewage works, pneumatic conveying of granular materials, vacuum lifting systems, and industrial process air. Widely supplied to Saudi Arabia water treatment facilities, SWCC desalination plants, and industrial plants requiring pulse-free, oil-free compressed air or vacuum supply.

Type 06

Fan Accessories & Controls

Variable frequency drives (VFD) for fan speed control and energy saving — sized to match fan motor kW rating. Flexible duct connections in neoprene and SS wire-reinforced fabric for vibration isolation between fan and ductwork. Fan silencers (attenuators) for inlet and outlet noise attenuation — rectangular and circular sections. Anti-vibration mounts (spring and rubber) for base-mounted fan sets. Motorised butterfly dampers and manual backflow prevention dampers. Inlet vane controls (IVC) for centrifugal fan capacity regulation. Belt drive assemblies with adjustable motor slide rails and drive guard. Complete fan packages with starter panel for KSA HVAC and process projects.

Product Catalog

Complete Industrial Fans & Blowers Range — 25+ Products

All fans and blowers supplied with fan performance curves, motor certificates, and AMCA/ISO test data. ISO 9001:2015 QMS (CR 4030570569). Representative stock lines — contact us for specific sizes and project requirements.

Fan Type	Airflow Range	Static Pressure	Power Range	Standard	Application
Centrifugal Fan — BC SISW (Belt Drive)	500–50,000 m³/h	100–2,000 Pa	0.75–75 kW	AMCA 210 / ISO 5801	HVAC supply air, process ventilation, fume and dust exhaust
Centrifugal Fan — BC DIDW (Direct Drive)	2,000–100,000 m³/h	200–2,500 Pa	5.5–160 kW	AMCA 210 / ISO 5801	Large HVAC air handling units, industrial process air supply
Centrifugal Fan — FC SISW (Belt Drive)	200–20,000 m³/h	50–800 Pa	0.37–30 kW	AMCA 210 / ISO 5801	Fan coil units, low-pressure HVAC return air, comfort ventilation
Centrifugal Fan — Radial Blade (Heavy-Duty)	500–80,000 m³/h	200–3,000 Pa	2.2–132 kW	AMCA 210 / ISO 5801	Dusty and abrasive airstreams — cement, sand, sawdust, pellet dust
Centrifugal Fan — SS 316L (Corrosion-Resistant)	200–30,000 m³/h	100–1,500 Pa	0.75–45 kW	AMCA 210 / ISO 5801	Chemical fume exhaust, acid gas ventilation, coastal KSA installations
Centrifugal Fan — ATEX Zone 1 (Ex d IIB T3)	500–50,000 m³/h	100–2,000 Pa	1.5–75 kW	ATEX 2014/34/EU / IEC 60079	Hazardous area ventilation — oil & gas, refinery Zone 1 classified areas
Axial Fan — Propeller (Wall Mount)	1,000–100,000 m³/h	20–200 Pa	0.18–15 kW	AMCA 210 / ISO 5801	General factory and warehouse ventilation, plant room exhaust
Axial Fan — Tube-Axial (Duct Type)	500–80,000 m³/h	50–500 Pa	0.37–37 kW	AMCA 210 / ISO 5801	Duct booster, tunnel ventilation, underground carpark exhaust
Axial Fan — Vane-Axial (High Static)	2,000–500,000 m³/h	100–800 Pa	2.2–315 kW	AMCA 210 / ISO 5801	Cooling towers, ACHE, mine ventilation, large-scale industrial exhaust
Axial Fan — Variable Pitch on Running (VPOR)	5,000–300,000 m³/h	100–600 Pa	11–315 kW	AMCA 210 / ISO 5801	Cooling tower fan with variable pitch blade for energy-efficient flow control
Inline Centrifugal Fan — Circular (Mixed-Flow)	100–20,000 m³/h	100–1,000 Pa	0.18–11 kW	AMCA 210 / ISO 5801	Kitchen exhaust, carpark ventilation, corridor pressurisation in KSA buildings
Inline Centrifugal Fan — Rectangular	500–30,000 m³/h	100–800 Pa	0.37–22 kW	AMCA 210 / ISO 5801	Riser shaft ventilation, stairwell pressurisation, hospital exhaust
High-Pressure Centrifugal Blower — DN200	500–3,000 m³/h	1,000–5,000 Pa	2.2–22 kW	AMCA 210 / ISO 5801	Combustion air for industrial burners, process air supply, drying systems
High-Pressure Centrifugal Blower — DN400–DN800	2,000–30,000 m³/h	1,500–5,000 Pa	15–160 kW	AMCA 210 / ISO 5801	Bag filter air supply, pneumatic conveying, cyclone separator air
PD Blower — Roots-Type (Pressure)	100–5,000 m³/h	0.3–1.0 bar (g)	1.5–75 kW	ISO 1217 / PNEUROP	Wastewater aeration, pneumatic conveying, biogas mixing
PD Blower — Roots-Type (Vacuum)	100–3,000 m³/h	−300 to −500 mbar	1.5–55 kW	ISO 1217 / PNEUROP	Vacuum lifting, vacuum conveying, packaging, and paper handling
Jet Fan — Tunnel & Carpark (Reversible)	5,000–50,000 m³/h	Low resistance, jet thrust	2.2–30 kW	ISO 5801 / EN 12101-3	Road tunnel ventilation, enclosed carpark smoke extraction
Roof Extractor Fan — Low-Profile	500–15,000 m³/h	50–300 Pa	0.18–5.5 kW	AMCA 210 / ISO 5801	Roof ventilation, warehouse heat exhaust, factory general ventilation
Variable Frequency Drive (VFD) — Fan Duty	—	—	0.75–355 kW	IEC 61800-3 / EN 61800-5	Fan speed control for energy saving and variable flow demand control
Fan Silencer (Attenuator) — Circular, Splitter Type	—	—	—	ISO 7235 / ASHRAE 68	Fan inlet and outlet noise attenuation for HVAC and industrial fans
Flexible Duct Connection — Neoprene	—	Up to 1,500 Pa	—	SMACNA / ASHRAE	Vibration isolation between fan and ductwork, thermal expansion take-up
Anti-Vibration Mount — Spring Type	—	—	Load 50–2,000 kg/mount	ISO 10816 / ASHRAE 68	Base isolation for fan sets on building structures and rooftops
Motorised Butterfly Damper — Round	—	Up to 3,000 Pa	—	EN 1751 / SMACNA	Fan system isolation, flow zone control, smoke damper duty
Backflow Prevention Damper (Non-Return)	—	Up to 1,500 Pa	—	EN 1751 / SMACNA	Preventing backflow through standby fans and parallel fan systems
Inlet Vane Control (IVC) — Centrifugal Fan	—	—	To match fan size	AMCA 210	Centrifugal fan capacity control — air pre-swirl for flow modulation

Why Us

Why Industrial Buyers in Saudi Arabia Choose Gulf Union Ozone for Fans & Blowers

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Local Stock — Fast Dispatch

Centrifugal fans, axial fans, blowers, and accessories stocked in Jeddah and dispatched same-day to all KSA regions. No waiting on overseas imports for urgent replacement or new-build projects.

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AMCA Performance Data & ATEX Certification

Every fan is supplied with AMCA 210 or ISO 5801 performance curves, motor certificates, and — where applicable — ATEX certificates and IECEx documentation required for Saudi Aramco and SABIC hazardous area approvals.

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ISO 9001:2015 Certified Quality

Gulf Union Ozone is ISO 9001:2015 certified (CR 4030570569), Jeddah, Saudi Arabia — giving procurement teams full quality assurance and lot traceability on every fan and blower order.

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Nationwide KSA Delivery

Delivery to all Saudi Arabia regions — Jubail, Yanbu, Dammam, Riyadh, Jizan, Ras Tanura, Tabuk, and beyond. Bulk project quantities and single fan replacements both fulfilled efficiently from our Jeddah warehouse.