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Factors that Dictate Booster Pump Power, Flow and Pressure

A booster pump is no more than a pump, which may or may not come with a bladder tank, that lets you adjust domestic water pressure when demand is excessive. Pool owners will find it smart to operate at relatively high pressure because automatic cleaners and other robots are do better at removing encrusted dirt.
You may want to get a swimming pool booster pump for your system. But what are the factors that determine power, flow and pressure for a booster pump?

Pressure

Pressure refers to the force of the water in B (bars) at discharge point, depending on pump pipe cross-section. Manufacturers can also indicate pressure in terms of CMW (column metres of water).

Pressure and flow are inseparable. This is a fundamental law of hydraulics: for a particular flow, a bigger-section pipe will produce less pressure compared to a smaller-section.

Discharge height

Discharge height is indicated in CMW. It’s a crucial criterion because you need to be sure about the pumped water getting to the target discharge point. Surface pump manufacturing companies often report a discharge height (the difference in level between pump and discharge point) or a TMH (the total manometric height expressed in metres).

Flow

Flow is the core technical characteristic of a water systems. The flow rate is the amount of water that is pumped per period of time.

When choosing a pump, keep in mind though that flow rate will vary on the basis of suction depth and the discharge height. For a certain diameter of pump pipe, the same pump will bring less flow as the difference in height increases.

On the other hand, the shorter the height between your suction and discharge points , the greater the flow rate. 250m3/h for each additional person. For watering, give 1m3/h for 400m? and 3.

What is considered ‘comfortable’ domestic water pressure is around 2 to 3 B, depending on the distance to the water tower or reservoir. In other words, remote, “end of the line” properties may deal with low pressure and find a booster useful.

If you get water from a well, look at the suction depth as well as the type of water you’re sucking up. Look at discharge height too, which is the distance from the surface pump to the water distribution site – as when you water a garden that lies high above the well. Those who use an automatic watering system should take time to determine their required flow. Of course, more watering points mean more water required.

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