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Comparison Optima WQD8-12 vs Optima WQD10-12

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Optima WQD8-12
Optima WQD10-12
Optima WQD8-12Optima WQD10-12
from $66.48 up to $72.16
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from $61.80 up to $86.14
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Suitable forwaste waterwaste water
Specs
Maximum performance
8000 L/h /maximum/
10000 L/h /maximum/
Maximum head
12 m /maximum/
12 m /maximum/
Pump typevortexvortex
Maximum immersion depth5 m5 m
Maximum particle size55 mm55 mm
Mechanical impurities1100 g/m³
Maximum liquid temperature40 °С40 °С
Dry run protection
Float switch
Suction systemsingle-stagesingle-stage
Outlet size2"2"
Engine
Maximum power900 W1100 W
Power sourceelectricelectric
Mains voltage230 V230 V
General specs
Protection class (IP)6868
Country of originPolandPoland
Pump housing materialcast ironcast iron
Impeller / auger materialcast ironcast iron
Weight27 kg
Added to E-Catalogjune 2016june 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.

Mechanical impurities

The maximum amount of mechanical impurities in the suction water at which the pump can operate normally (of course, if the particles of these impurities do not exceed the maximum size possible for this model; see above for details). Pure water is considered to be water with an impurity content of up to 20 g per cubic meter, but in sewage, the bill can already go to tens of kilograms per cubic meter.

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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Optima WQD10-12 often compared