Centrifugal fans push air through ducts, filters and hoods where axial fans cannot.
We supply direct and belt driven types. Send airflow and pressure.
What are centrifugal fans?
A centrifugal fan draws air into the centre of a spinning wheel and throws it outward into a scroll casing. This builds more pressure than an axial fan, so it can push air through long ducts, filters and coils.
Direct drive fans mount the wheel on the motor shaft, while belt driven fans use pulleys so speed can be adjusted. Blowers are compact centrifugal fans used for drying, cooling and portable ventilation.
Further reading
- Centrifugal fans (Wikipedia)
- Mechanical fans (Wikipedia)
- Air ducts (Wikipedia)
Key terms explained
- Direct drive
- The fan wheel sits on the motor shaft.
- Belt drive
- The motor turns the fan through belts and pulleys, allowing speed changes.
- Airflow (m3/h or CFM)
- How much air a fan moves. 1 m3/h is about 0.59 CFM.
- Static pressure
- The resistance a fan must push against from ducts, filters and grilles, in pascals (Pa).
- Air changes per hour (ACH)
- How many times the air in a room is replaced each hour.
Features and benefits
- Higher pressure than axial fans.
- Suits ducts, filters and hoods.
- Direct and belt driven types.
- Portable and fixed models.
Technical specifications
| Product | Centrifugal fans |
|---|---|
| Drive | Direct or belt |
| Size and airflow | Confirm with quote |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
| Supplier | Sparks Plumbing Experts Ltd, Nairobi |
Sizes, grades and ratings depend on stock and model. Tell us what you need, and we will confirm before you order.
Applications of centrifugal fans
- Kitchen hood extract. Pulls air through grease filters.
- Ducted ventilation. Supplies and extracts through ductwork.
- Dust extraction. Moves air through collectors where rated.
- Drying. Dries crops, products and floors.
- Boiler and burner air. Supplies combustion air where specified.
- Confined space ventilation. Portable blowers ventilate tanks and pits.
- Spray booths. Extracts through filters where rated.
- Cooling equipment. Blows air over machines.
- Air handling units. Moves air through coils.
- Factories. Process extraction.
How to choose and install
- Size by airflow and static pressure.
- Choose belt drive where speed may need adjusting.
- Match the motor to your supply.
- Check rotation after wiring.
- Fit flexible connectors to cut vibration.
Why choose Sparks Plumbing Experts
- Fans in several sizesInline duct fans and box fans come in a range of diameters, so you can match airflow to the room.
- PVC and metal optionsChoose corrosion-resistant PVC for humid rooms or metal housings for tougher conditions.
- Grilles and diffusers tooDiffusers, louvers and grilles finish the system you are ventilating.
- Sizing guidanceTell us the room size and duct route, and we help you pick a fan with enough airflow.
- Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
- Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
- Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
- Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
- Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
- Supply across East AfricaWe serve customers across Kenya, and we also supply buyers in Uganda and Tanzania.
Related products and accessories
Browse more: Ventilation · HVAC · Electricals · Louvers.
Ordering from Sparks Plumbing Experts
We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. You can collect from our store at KCB Building, Enterprise Road, Nairobi, or ask us about delivery to your site. Send your quantities and specifications, and we will reply with prices and availability.
Request a Quote WhatsApp 0726 086 895
Frequently asked questions
What details do you need to quote centrifugal fans?
Tell us the space size and use, duct size and length, power supply, or the model you are replacing. A photo of the old part, a nameplate or a drawing also helps. Then call or WhatsApp 0726 086 895, or use the quote form on this page.
Do you deliver centrifugal fans outside Nairobi?
Yes. We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. Delivery or courier arrangements are agreed when you confirm the order.
How much does a centrifugal fan cost in Kenya?
The price depends on the type, size, motor and quantity. Therefore, send your list with a quote request and we will reply with current figures.
Why choose a centrifugal fan?
It handles ducts and filters better than an axial fan.
How do I check rotation?
Briefly start it and compare with the arrow on the casing.
Do belts need maintenance?
Yes. Check tension and wear regularly.
Can I change fan speed?
Change pulleys on belt drives, or use a drive on suitable motors.
Are portable blowers safe in confined spaces?
They help, but follow confined space safety rules.
People also search for
direct drive vs belt drive fan
Direct drive is simple. Belt drive allows speed adjustment.
centrifugal fan for kitchen hood
A centrifugal fan handles the pressure of filters and ducts.
blower vs fan
A blower builds more pressure than a typical fan.
Centrifugal fans price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.
axial vs centrifugal fan
Axial fans move lots of air at low pressure. Centrifugal fans push against ducts and filters.
how to size a ventilation fan
Room volume times air changes per hour gives the airflow. Then allow for duct resistance.
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