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Comparison Vitals Aqua APQ 435-2G vs Vitals Aqua AVQ 437-2EG

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Vitals Aqua APQ 435-2G
Vitals Aqua AVQ 437-2EG
Vitals Aqua APQ 435-2GVitals Aqua AVQ 437-2EG
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Suitable forclean waterclean water
Specs
Maximum performance2100 L/h
2160 L/h /maximum/
Maximum head27 m
37 m /maximum/
Max. pressure2.7 bar
Pump typevortexvortex
Suction typeself-primingself-priming
Suction height8 m8 m
Maximum particle size0.05 mm0.05 mm
Mechanical impurities20 g/m³20 g/m³
Maximum liquid temperature40 °С40 °С
pH value6.5 – 9.56.5 – 9.5
Volume of water pressure tank2 L2 L
Suction systemsingle-stagesingle-stage
Outlet size1"1"
Inlet hole size1"1"
Engine
Maximum power370 W370 W
Power sourceelectricelectric
Mains voltage230 V230 V
Power cord length1.5 m1.5 m
General specs
Protection class (IP)4444
Country of originLatviaLatvia
Pump housing materialcast ironcast iron
Impeller / auger materialbrassbrass
Water pressure tank materialsteelsteel
Dimensions293х228х260 mm300х207х285 mm
Weight6.9 kg9.1 kg
Added to E-Catalogaugust 2018september 2015

Maximum performance

The maximum volume of water that the device can pump in a certain amount of time. It is one of the key specs of any pump because characterizes the volume of water with which the device can work. At the same time, it does not always make sense to pursue maximum performance — after all, it significantly affects the dimensions and weight of the unit.

Some formulas allow you to derive optimal performance values for different situations. So, if the pump is designed to supply water to water intake points, its minimum required performance should not be lower than the highest total flow rate; if desired, a margin of 20-30% can be added to this value. And for sewer models (see "Suitable for"), everything will depend on the volume of wastewater. More detailed recommendations for choosing a pump depending on performance can be found in special sources.

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.

Max. pressure

The highest pressure that the pump is capable of creating during operation. This parameter is directly related to the maximum head (see above); however, it is less obvious, and therefore, it is indicated rarely.
Vitals Aqua APQ 435-2G often compared