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Comparison Grundfos JP Basic 4 PT vs Grundfos JP Basic 3 PT

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Grundfos JP Basic 4 PT
Grundfos JP Basic 3 PT
Grundfos JP Basic 4 PTGrundfos JP Basic 3 PT
from 10 000 ₴
Outdated Product
from 8 436 ₴
Outdated Product
User reviews
Suitable forclean waterclean water
Specs
Maximum performance
3600 L/h /maximum/
3600 L/h /maximum/
Maximum head
50 m /maximum/
47 m /maximum/
Max. pressure3 bar3 bar
Pump typecentrifugalcentrifugal
Suction typeself-primingself-priming
Suction height7 m7 m
Maximum liquid temperature40 °С40 °С
Volume of water pressure tank24 L24 L
Suction systemsingle-stagesingle-stage
Outlet size1"1"
Inlet hole size1"1"
Engine
Maximum power1100 W850 W
Power sourceelectricelectric
Mains voltage230 V230 V
General specs
Country of originDenmarkDenmark
Pump housing materialcast ironcast iron
Impeller / auger materialplasticplastic
Water pressure tank materialsteelsteel
Dimensions543x305x509 mm543x305x509 mm
Weight20.5 kg19 kg
Added to E-Catalognovember 2014november 2014

Maximum head

The maximum head generated by the pump. This parameter is most often indicated in meters, by the height of the water column that the unit can create — in other words, by the height to which it can supply water. You can estimate the pressure created by the pump using a simple formula: every 10 m of head corresponds to a pressure of 1 bar.

It is worth choosing a pump according to this parameter, taking into account the height to which it should supply water, as well as adjusting for losses and the need for pressure in the water supply. To do this, it is necessary to determine the difference in height between the water level and the highest point of water intake, add another 10 to 30 m to this figure (depending on the pressure that needs to be obtained in the water supply), and multiply the result by 1.1 — this will be the minimum pressure required.

Maximum power

Rated power of the pump motor. The more powerful the engine, the higher the performance of the unit, usually, the greater the pressure, suction height, etc. Of course, these parameters largely depend on other features (primarily the pump type, see above); but models similar in design can be compared in terms of power.

Note that high power, usually, increases the size, weight and cost of the pump, and also implies high costs of electricity or fuel (see "Power source"). Therefore, it is worth choosing a pump according to this parameter taking into account the specific situation; more detailed recommendations can be found in special sources.
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Grundfos JP Basic 3 PT often compared