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Comparison Svityaz WQD12 vs Svityaz WQCD10

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Svityaz WQD12
Svityaz WQCD10
Svityaz WQD12Svityaz WQCD10
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Suitable forwaste waterwaste water
Specs
Maximum performance
18000 L/h /maximum/
12000 L/h /maximum/
Maximum head
15 m /maximum/
8 m /maximum/
Max. pressure6 bar
Maximum immersion depth5 m5 m
Maximum particle size30 mm25 mm
Maximum liquid temperature35 °С35 °С
Dry run protection
Grinder
Float switch
Suction systemsingle-stagesingle-stage
Outlet size2"2"
Engine
Maximum power2000 W2000 W
Power sourceelectricelectric
Mains voltage230 V230 V
Power cord length8 m8 m
General specs
Protection class (IP)X8X8
Country of originUkraineUkraine
Pump housing materialcast ironcast iron
Dimensions250х200х430 mm
Weight17.5 kg16.2 kg
Added to E-Catalogfebruary 2020february 2019

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.

Maximum particle size

The largest particle size that the pump can handle without problems. This size is the main indicator that determines the purpose of the device (see above); and in general, the larger it is, the more reliable the device, the lower the risk of damage if a foreign object enters the suction line. If the risk of the appearance of too large mechanical impurities is still high, additional protection can be provided with filters or grids at the inlet. However, such a measure should be considered only as a last resort, because from constant exposure to solid particles, the grids become clogged and deformed, which can lead to both clogging of the line and filter breakthrough.

Dry run protection

A system that protects the unit from running without water.

The dry running mode is abnormal for any pump: at best, the mechanism of the unit in this mode experiences increased loads, and at worst, the device may fail and even a serious accident. This feature allows you to prevent such consequences. The specific method of protection against dry running may be different; one of the most popular options is a float switch (see below). However, in addition, flow sensors, pressure or level switches can be used. These details depend both on the general type of pump and on the specific model; they should be specified separately in each case.
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