Calculations HMF Hamburger Matenfilter: pump performance, filter mat size or filter foam size and flow rate of Hamburg mat filter: Three values are important for the design of an HMF. one (flow rate / Approach velocity) mainly serves to check the correct interpretation of the Filter mat and the Pump performance. Below we have the calculations in our online tool inserted, so that it is possible for everyone to calculate the required values exactly around the Hamburg mat filter to interpret correctly.
Everything you need to know about the Hamburg mat filter can be found in our large guide.
Basically the following things are needed. The required Pump performance for Diaphragm pump or air pump, the Size for filter area in the aquarium, i.e. the size of the filter foam or the filter mat and the flow rate / flow rate in the filter.
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Required filter mats or filter foam size
Usually you are not flexible with this size, since the size is already determined by the dimensions in the aquarium. Nevertheless, you can also calculate this to get an indication of how large it should be. This value can be particularly useful with a separate filter tank, where I am more flexible when it comes to the size of the filter mat.
In the following calculation one can flow factor adjust. The larger this is, the smaller the area required. But you have to make sure that you don't go over 10 or a maximum of 15 cm/min. The optimum would certainly be 7,5 cm/min.
The whole thing is calculated as follows:
Aquarium Contents (Q) x Circulations per Hour x 1000/(Flux Velocity V x 60)
The calculation with 1000 and 60 results from the conversion from liters to cm³ and the 60 to get from liters per minute to liters per hour.
Pump performance of the membrane pump depending on the filter size
After you basically know how big the surface of the filter mat is, be it through the above calculation or through the determination and dimensions of the pool, since you have no leeway here, you have to know the pump performance, because then you should design his diaphragm pump and buy it accordingly. We also have a corresponding online tool for calculation. Basically, you only enter the area of the filter mat in cm² and the inflow factor in cm/min. As mentioned above, this should be 7,5.
Inflow factor x area of the filter x 60 / 1000
This value serves more as a maximum value and must of course be adjusted accordingly if you change the circulation per hour.
Calculation of the inflow velocity
To check, you can of course also use an existing pump and its performance and also the area of the filter medium to calculate which one Approach velocity comes out. So you can quickly find out whether the respective devices can also be used in this way. If values over 15 cm/min come out here, then you may have to change something. Either increase the filter surface or reduce the pump output.
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Pump output in liters per hour / 60 x 1000 / area of the filter mat
As always, all information is subject to change and should only be used as a guide.