Different Types of Water Pumps and Their Uses
Quick answer: Water demand across the UAE keeps rising. Villas add rooftop tanks, farms expand drip irrigation, and construction sites need dewatering around the clock. Behind each setup sits a pump, and the wrong choice means weak pressure, burnt motors, and wasted power.
This guide explains the main types of water pumps and their uses in plain terms. It comes from Al Yaqeen Hardware, a water pump supplier in UAE stocking Ebara, Lowara, Pedrollo, Grundfos, and Goulds units.
By the end, you will know which pump fits your water source, pressure target, and budget.
What Are the Main Types of Water Pumps?
The main types of water pumps are centrifugal, submersible, self-priming, multistage booster, positive displacement, and diesel-driven pumps. Each type moves water differently, so the right choice depends on source depth, required pressure, flow rate, and the liquid being pumped.
Engineers group pumps into two families. Rotodynamic pumps, including centrifugal designs, use a spinning impeller to add velocity and pressure. Positive displacement pumps trap a fixed volume of liquid and push it through the discharge. The Hydraulic Institute pump type definitions set the standard nomenclature for both families.
Most homes, farms, and commercial buildings run on rotodynamic designs. Positive displacement units appear where liquids are thick, abrasive, or need precise dosing.
How Do Centrifugal Water Pumps Work?
A centrifugal pump spins an impeller inside a volute casing, throwing water outward to create flow and pressure. It is the most common of all types of water pumps because it delivers steady output, runs quietly, and costs less to maintain than most alternatives.
Water enters at the impeller eye, gains speed, and leaves through the discharge port at higher pressure. Key parts include the impeller, casing, mechanical seal, and motor. Performance depends on Net Positive Suction Head (NPSH), so a pump placed too high above the water level can cavitate and fail early.
Common uses include:
- Domestic and building water supply
- HVAC and chilled water circulation
- Garden, landscape, and farm irrigation
- Light industrial water transfer
- Cooling and washing circuits
A single-stage unit such as the Ebara CDX monoblock pump suits transfer and circulation duties where a moderate head is enough. Monoblock designs mount the impeller directly on the motor shaft, which saves space and simplifies alignment.
The trade-off is simple. Centrifugal pumps lose prime when air enters the suction line, and they handle solids poorly.
When Should You Use a Submersible Water Pump?
Use a submersible pump when the water source sits below the pump inlet, such as a borehole, well, sump pit, or flooded excavation. The sealed motor operates underwater, so the pump pushes water upward instead of pulling it. This removes suction limits and reduces noise.
Submersible pumps come in several variants:
- Borehole pumps lift clean water from deep wells for supply and irrigation.
- Drainage and dewatering pumps clear flooded basements, trenches, and construction pits.
- Sewage and solids-handling pumps use vortex or channel impellers to pass debris.
Match the impeller to the liquid. A clean-water impeller clogs quickly in sandy or muddy water. Check the maximum solids size on the datasheet before buying.
Cable entry sealing and motor cooling are the usual weak points. Never let a submersible run dry, and install a level switch or dry-run protection device.
What Is a Self-Priming Pump and When Is It Better?
A self-priming pump removes air from its suction line and starts pumping without manual filling. It works well for surface installations where the water level sits below the pump, such as ground tanks, trenches, and canal intake lines, and it restarts reliably after air enters.
This is the core of the self priming pump vs centrifugal pump decision. A standard centrifugal pump needs flooded suction or a foot valve. A self-priming unit holds water in a priming chamber and recovers on its own.
The Ebara JEU self-priming pump is a practical example for garden use, tank transfer, and small irrigation lines. Expect two limits. Efficiency is slightly lower than a comparable centrifugal pump, and suction lift is still capped by physics, typically under 8 metres at sea level.
Which Pump Is Best for Boosting Water Pressure?
A vertical multistage booster pump is best for raising pressure in villas, towers, and commercial buildings. It stacks several impellers in series, and each stage adds a head. This delivers high pressure in a compact footprint with lower energy use than a single-stage pump at the same duty.
The Lowara 5SV vertical multistage pump belongs to this class. Vertical multistage pumps are common in pressure boosting, water treatment, and washing systems.
A complete booster set usually includes:
- A pressure tank to reduce pump cycling
- A pressure switch or variable frequency drive (VFD)
- A non-return valve on the discharge line
- Dry-run and overload protection
A VFD matches motor speed to demand, which cuts start-stop cycles and electricity use. For buildings with fluctuating demand, it is usually the better long-term investment.
Pump selection guide: Not sure which pump class fits your site? Browse our full range of water pumps in UAE and compare brands, series, and duty ranges before you decide.
Are Diesel and Positive Displacement Pumps Worth Considering?
Yes, when power supply, liquid type, or flow control rules out a standard electric centrifugal pump. Diesel engine-driven pumps serve remote sites, construction dewatering, and fire-fighting duty, while positive displacement pumps handle viscous liquids and dosing.
Both cost more to operate, so use them only where the application demands it. Diesel-driven pumps offer:
- Independence from grid power
- High flow for dewatering and flood control
- Portability across temporary sites
Their costs are fuel, noise, exhaust, and scheduled engine servicing.
Positive displacement pumps, such as diaphragm, gear, and piston types, deliver consistent flow regardless of pressure. They suit chemical dosing, oils, and slurries, but they produce pulsation and need relief valves to prevent over-pressure.
How Do You Choose the Right Water Pump?
Choose a water pump by matching five parameters: water source, flow rate, total dynamic head, liquid quality, and power availability. Calculate these first, then compare manufacturer pump curves. Skipping this step is the most common reason buyers end up with undersized or oversized pumps.
Use this checklist:
- Water source: surface tank, borehole, well, or mains supply.
- Flow rate: required volume in m³/h or litres per minute.
- Total dynamic head: static lift plus pipe friction loss plus required discharge pressure.
- Liquid quality: clean, sandy, salty, hot, or solids-laden water.
- Power supply: single-phase, three-phase, or diesel engine.
- Duty cycle: intermittent household use or continuous industrial running.
Here is a quick comparison of the main types of water pumps:
| Pump Type | Best For | Main Limitation |
|---|---|---|
| Centrifugal | Supply, circulation, irrigation | Needs flooded suction; poor with solids |
| Submersible | Boreholes, sumps, dewatering | Harder to inspect; dry-run risk |
| Self-priming | Surface tanks, trenches, small irrigation | Lower efficiency; limited suction lift |
| Multistage Booster | Pressure boosting in buildings | Higher upfront cost; clean water only |
| Diesel-driven | Remote or temporary sites | Fuel, noise, servicing |
| Positive Displacement | Viscous liquids, dosing | Pulsation; slower flow |

What Causes Water Pumps to Fail in UAE Conditions?
Most pump failures in UAE trace back to dry running, sand and silt ingestion, overheating, and poor suction piping. High ambient temperatures and hard or saline water accelerate seal wear and scaling, so installation quality matters as much as pump choice.
Preventive controls worth building in:
- Install dry-run and thermal overload protection
- Fit strainers or foot valves on suction lines
- Place pumps in shaded, ventilated enclosures
- Size suction pipes at or above the pump inlet diameter
- Inspect seals, bearings, and impellers every year
Treat maintenance as a cost of ownership. A well-chosen pump with a planned service routine outlasts a cheaper unit that runs unprotected.
Which Type of Water Pump Is Worth Choosing?
No single option wins across all types of water pumps. Centrifugal pumps are the practical default for general supply and circulation. Submersible pumps are worth it for deep sources and drainage. Self-priming pumps suit surface tanks, and multistage boosters are the right call for pressure problems.
If you run a household or small farm, start with a centrifugal or self-priming pump. If you manage a building, prioritize a multistage booster with a VFD. For construction or remote work, consider diesel-driven or submersible dewatering units.
The best pump is the one sized to your actual head, flow, and liquid, not the biggest or cheapest on the shelf.
Get the right pump the first time: Share your flow, head, and site details, and our team will recommend a matching model. Contact Al Yaqeen Hardware for sizing advice, brand comparison, and stock availability for your project in Sharjah, UAE.
FAQs
What is the most common type of water pump?
The centrifugal pump is the most common type of water pump. It uses a spinning impeller to move water and suits domestic supply, irrigation, HVAC circulation, and light industrial transfer. Its main limits are priming requirements and poor tolerance of solids.
What is the difference between a submersible pump and a surface pump?
A submersible pump sits underwater and pushes water upward, while a surface pump sits above the water and pulls it in through a suction line. Submersibles suit deep wells and drainage. Surface pumps are easier to inspect and service.
Which water pump is best for home use?
For most homes, a centrifugal or self-priming pump handles tank filling and garden use, while a vertical multistage booster pump fixes low pressure in villas and multi-storey houses. The best choice depends on your water source, required pressure, and daily consumption.


