With a centrifugal pump you transport water optimally from A to B. It works according to the principle of centrifugal or centrifugal force and supports perfect garden irrigation. Find out what is important when buying a centrifugal pump and how it works!
With a centrifugal pump, watering the garden becomes child's play
Our recommendations
our recommendation
Agora-Tec AT centrifugal pump 5-1300W, 5-stage centrifugal pump with max: 5.6 bar and max: 5400l/h
199.95 EUR To the product| flow rate | 5,400 liters per hour |
|---|---|
| head and pressure | 56 m, 5.6 bar |
| suction lift | 6 m |
| self-priming? | no |
| engine power | 1,300W |
The Agora-Tec centrifugal pump is described by Amazon reviewers as a very powerful pump for garden irrigation. It should have an excellent pump performance and be relatively quiet in operation, which is anything but a matter of course with this type of pump. In addition, the buyers of the model praise its high-quality materials and workmanship. Even in the long term, this centrifugal pump seems to have proven itself, even if it is not self-priming.
our recommendation
Stainless steel centrifugal garden pump 1300W/230V 6000 L/h INOX
128.00 EUR To the product| flow rate | 6,000 liters per hour |
|---|---|
| head and pressure | 55 m, 5.5 bar |
| suction height | 8m |
| self-priming? | Yes |
| engine power | 1,300W |
In contrast to the centrifugal pump from Agora-Tec, the IBO/DABAT variant is quite self-priming, so it can vent itself. The delivery capacity is also convincing, as the reviewers on Amazon confirm. The multi-stage centrifugal pump is apparently suitable both for a domestic waterworks and for use in the garden. The unanimous opinion is "A good pump at a good price".
our recommendation
Multi-stage centrifugal pump 6000l/h 550W delivery head 35m, 2900rpm, for domestic waterworks
144.30 EUR To the product| flow rate | 6,000 liters per hour |
|---|---|
| head and pressure | 35 m, 3.5 bar |
| suction lift | 9 m |
| self-priming? | not clear |
| engine power | 550W |
The centrifugal pump from the renowned Wiltec brand is our price-performance winner. It is true that it performs worse than the other two pumps in our comparison in some performance data - especially in terms of engine power and the delivery head or delivery pressure; but it also costs less. The previous ratings (as of November 2022) are excellent - all customers have given this centrifugal pump the full number of stars.
Purchase Criteria
kind
domestic waterworks: A domestic water system with a centrifugal pump is specially designed to supply the house with drinking or process water. Here the pump does not direct the water directly to the target lines. Instead, it first goes into a pressure vessel. From there it is constantly available to the consumer (faucet, toilet flushing, etc.) in the required quantity.
our recommendation
Garden pump 2200 watts INOX 9600 L/h 5.5 bar domestic waterworks centrifugal pump MHi 2200 INOX
173.00 EUR To the productgarden pump: A centrifugal pump as a simple garden pump is usually compact and does not require a pressure tank. It sucks in the water via a suction hose and generates a continuous flow of water through the rotating impeller.
Type
radial pump: With the radial pump, the water exits the impeller perpendicularly to the pump shaft (radial). This can generate stronger centrifugal forces and result in an increase in pressure.
diagonal pump (semi-axial pump): With the diagonal pump, the water exits the impeller at an angle to the pump shaft (semi-axial).
side channel pump: The side channel pump is characterized by its automatic suction capacity. You can transport gas without damage. The following applies: the lower the speed, the better the suction capacity and the lower the risk of cavitation.
peripheral pump: With the peripheral impeller pump, the water flow is generated in a peripheral ring channel. It is ideal for small flow rates and a high delivery pressure.
axial pump (propeller pump): With the axial pump, often also called propeller pump, the water exits the impeller parallel to the pump shaft (axially).
conveying capacity
flow rate: How many liters of water can the centrifugal pump transport per hour? Usually it is between 2,500 and 13,000 l/h. In houses, at least 5,000 to 8,000 l/h are recommended, for garden irrigation 3,000 l/h are often enough.
head: How many meters high or far can the centrifugal pump pump the water? The maximum is usually 60 meters (on the best models).
discharge pressure: With what delivery pressure can the centrifugal pump transport the water? This value is given in bar and usually reaches a maximum of six bar. Strictly speaking, head and pressure are synonymous, they define the same "output" with different units.
suction lift: From what distance can the centrifugal pump suck in the water? This value is generally between six and twelve meters.
speed of the impeller: At what speed does the impeller rotate? The spectrum is very wide with 1,000 to 30,000 revolutions per minute (rpm).
engine power: Also take a look at the engine performance. The higher it is, the more pressure the centrifugal pump can build up and thus transport larger amounts of water. For most models, the rated power is between 300 and 1,500 watts.
Splashproof
Make sure that your chosen centrifugal pump has at least IP X4 protection to be splash-proof.
check valve
Ideally, the centrifugal pump is equipped with a non-return valve. This prevents backflow of water.
clear water or dirty water
When buying your centrifugal pump, make sure that it is only suitable for clear water or also for dirty water (wastewater). Most versions only work with clear water. If there are coarser dirt particles (larger than two millimeters) in the water, these devices can become clogged and give up the ghost. In contrast, a dirty water pump can handle particles up to a certain size without any problems. It is mainly used to drain a flooded basement or a pond.
frequently asked Questions
What is a centrifugal pump?
A centrifugal pump is a pump for the domestic waterworks or a specific garden pump that is used to water the garden. It can pump water from a water butt or other source at more or less high pressure to a specific consumer, such as a sprinkler system.
How does a centrifugal pump work?
The functioning of a centrifugal pump is based on the so-called centrifugal force: in the pump housing there is a rotating impeller, driven by a motor. Now the turning movements of the impeller activate the mentioned centrifugal force: A suction is created - the water is drawn from the source into the pump housing and then pushed to the discharge hose or pipe.
What does "self-priming" mean for a centrifugal pump?
Centrifugal pumps are often referred to as self-priming. The term is very misleading, however, as it suggests that the pump could suck the water from the original source completely without the gardener having to do anything. But: The gardener must first fill the housing and the supply line with water so that the pump works. “Self-priming” mainly means that the pump can prime its suction line without an external auxiliary device.
What is a centrifugal pump suitable for?
Basically, centrifugal pumps are used wherever service water from a rain barrel or a well can be used - for example for watering the garden or flushing the toilet. The centrifugal pump is then used to transport the water from the respective source quickly and, in the truest sense of the word, powerfully to the destination. Centrifugal pumps can also be used to drain a pool.
Which brands offer good centrifugal pumps?
Well-known and popular brands for centrifugal pumps include Einhell, T.I.P., Wiltec and Agora-Tec. You can find pumps from these manufacturers on Amazon, among others. In principle, you can also buy centrifugal pumps in well-stocked garden centers and hardware stores. However, the ordering process on Amazon is usually much more convenient.
How much does a centrifugal pump cost?
Classic centrifugal pumps for the garden usually cost between 70 and 200 euros. Occasionally you will also come across cheaper or more expensive models. There are petrol-driven centrifugal pumps that cost up to 400 euros. However, these versions are used almost exclusively in the professional (commercial) sector.