A magnetic sealless pump drives its impeller through a magnetic coupling, so there is no shaft seal to leak.
It suits hazardous and costly liquids. However, it must never run dry.
What is a magnetic sealless pump?
A centrifugal pump moves liquid with a spinning impeller. Liquid enters at the centre, the impeller throws it outward, and the casing turns that speed into pressure.
Single-stage pumps suit high flow at moderate pressure, while multistage pumps stack impellers for high pressure. Materials and seals are chosen for the liquid: stainless for clean or hot water, plastics or magnetic drives for chemicals, and special designs for hot thermal oil.
Further reading
- Centrifugal pumps explained (Wikipedia)
- Pump types and principles (Wikipedia)
- Mechanical seals (Wikipedia)
Key terms explained
- Head
- The height a pump can lift liquid, in metres. It sets the pressure the pump delivers.
- Impeller
- The spinning part that adds energy to the liquid.
- Multistage
- Several impellers in series to build higher pressure.
- Mechanical seal
- The rotating seal that stops leaks where the shaft leaves the casing.
- Magnetic drive
- A sealless drive that turns the impeller through a magnetic coupling.
Features and benefits
- Smooth, steady flow.
- Wide range of flows and heads.
- Stainless, cast iron and plastic options.
- Sealed and sealless designs.
- Low maintenance for clean liquids.
Technical specifications
| Product | Magnetic sealless pump |
|---|---|
| Drive | Magnetic coupling |
| Model, flow and head | Confirm with quote |
| Materials | 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 a magnetic sealless pump
- Water supply. Transfers and boosts water.
- Booster sets. Raises pressure in buildings.
- Boiler feed. Feeds water into boilers.
- Hot water circulation. Circulates heating and hot water loops.
- Chemical transfer. Moves acids and alkalis with suitable materials.
- Thermal oil heating. Circulates hot oil in heaters.
- Reverse osmosis. Feeds high pressure membranes.
- Cooling water. Circulates cooling towers and chillers.
- Irrigation. Moves water to fields.
- Food and beverage. Moves thin liquids hygienically.
- Car washes. Feeds high pressure washing.
- Water treatment. Moves treated and raw water.
- Fire boosting. Used in fire sets where listed pumps are specified.
How to choose and install
- Select by flow and head at the duty point.
- Choose materials and seals for the liquid and temperature.
- Check the NPSH available on the suction side.
- Match the motor to your power supply.
- Never run the pump dry.
Why choose Sparks Plumbing Experts
- Pumps sized to your dutyShare your flow, head or borehole data, and we match a pump to it.
- Controls and accessoriesControl boxes, level controls and fittings complete the installation.
- Water, fuel and chemical pumpsOur range covers borehole, transfer, fuel and chemical duties.
- Performance data on requestAsk for the performance curve of the model we propose before you decide.
- 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: Industrial Pumps · Valves · Hoses, Flexible Pipes & Irrigation · Electricals.
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
Why choose a magnetic drive pump?
No seal means no leaks of hazardous liquids.
What details do you need to quote centrifugal pumps?
Tell us the liquid, flow rate, head or pressure, temperature, power supply and any model number or nameplate photo. 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 pumps 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 pump cost in Kenya?
The price depends on the model, size, materials and quantity. Therefore, send your list with a quote request and we will reply with current figures.
Can a centrifugal pump run dry?
No. Dry running damages the seal quickly.
Do you supply pump curves?
Ask us for the curve of the model you choose.
Can you supply spare seals?
Yes, send the pump model or seal size.
Single phase or three phase?
Small pumps are often single phase. Larger pumps usually need three phase.
How do I stop cavitation?
Keep suction short and wide, and keep the liquid level high.
People also search for
single stage vs multistage pump
Multistage pumps build higher pressure by stacking impellers.
magnetic drive pump advantages
No shaft seal, so no leaks of hazardous liquids.
pump head vs pressure
Ten metres of head is about one bar for water.
how to size a pump
Find the flow and total head, then pick a pump whose curve meets that point.
why pumps cavitate
Low suction pressure lets bubbles form and collapse, damaging the impeller.
Centrifugal pumps price in Kenya
Prices change with size, model and quantity. Request a quote from Sparks Plumbing Experts for current figures.
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