Hydroponic NFT pump selection – How to


in this brief video clip i'' m mosting likely to give you some.
sensible recommendations on the selection of a pump for your nft system i'' ll likewise reveal you just how very easy it is.
to do the estimations let'' s do it there ' s only'a couple of specifications that ' s crucial in pump choice. the first criterion is the amount of water that we must relocate in a
specific period that can be in. either liter or gallon per hr if we only require to raise a little amount of water we can get away with.
a smaller sized pump as well as certainly if we need to lift more water in a given period after that we.
need a larger pump our 2nd parameter is exactly how high the pump should raise the water and also for that we.
make use of a normal measuring tape so we gauge from the cheapest factor that the water can be in the system.
up till the acme where the pump should raise the water following parameter to take into consideration is the.
rubbing in the pipeline as well as the rubbing in a small diameter pipeline will certainly be much more than the friction.
in a bigger size pipe so from this we can find out that the bigger diameter pipe will certainly have.
less rubbing and also it'' s much better to use than a smaller diameter pipeline another thing that will certainly.
affect the rubbing of the water in the pipeline is the size of the pipeline tere will certainly for example.
be a great deal extra friction in a much longer pipe than in a shorter pipe the initial thing that'' s important. when you want to acquire a pump is the pump contour now let'' s have a look at a common pump curve. currently this is a normal pump graph that you'' ll use in the choice of the pump there ' s two pumps. indicated on this chart a ddf50 as well as a ddf-110 this is the particular contour of the ddf 50. which among the ddf110 on our upright axis we will have the head of the pump that'' s exactly how high. the pump must raise the water on our straight axis we will certainly have the flow rate and in this case.
it'' s showed in cubic meter per hr now you may ask we'' ve got the elevation that we raise the.
water as well as we'' ve got the circulation rate but what about the friction in the pipeline just how do we compute the.
simple method for small systems is just to include 20% to your elevation let'' s consider this really straightforward nft.
system nft system is a nutrient film technology so it means the pump will certainly pump the water up.
and simply a tiny movie of water will certainly be at the base of the pipe and also the roots of the plants.
that in these holes in the nft system will certainly then reach to that water as well as that'' s exactly how they will certainly obtain.
their nutrients the flow price in a solitary nft pipeline in a hydroponic system is usually in between 10 and also.
25 litres per hr the slope for a nft system is normally two to 4 percent that indicates it should.
fall two to 4 centimeters per meter size of the pipe currently we need to consider just how high have to.
we lift the water in the system and also remember it'' s from the most affordable point that
the water can go. up till the highest possible factor where the pump should take the water so it will certainly be from this point the. absolute floor that it can enter the amount if you believe your point is a bit.
reduced then you move your procedure from there up until the acme the greatest.
factor that the water have to be lifted not the acme in your system however the.
acme where the water have to be raised to this will offer us our head that'' s the. initially point that we must determine in this example we'' ve determined this from there.
to there and we discovered that it'' s 1.5 meters in order to make up for the friction in the. pipelines we ' re going to add an additional 20% to that head so 1.5 multiplied by 1.2 in order to add the. 20% will certainly give us 1.92 m to make sure that ' s the head that we ' ll usage in order
to choose the pump. for our example let ' s utilize 15 liter per hr and also'allow ' s state we ' ve obtained 100 of these nft pipelines. so what that will certainly imply is we will take 100 so we'' ve got 100 of these nft pipelines we'' re going to.
multiply that by 15 litre per pipe to ensure that'' s 1500 litre per hr so'we ' ve got our 2 specifications now. 1500 liter per hr is our flow as well as 1.92 meter is our head by adding 20% to our determined head we''
ve. likewise made up for the rubbing in the pipelines of course now let'' s utilize the values that we ' ve got in. order to pick one of these two pumps so we'' ve obtained 1.9 meter head and 1 500 litre per hour flow.
rate so 1 500 litre we'' ll find right here on this line and afterwards 1.92 should be someplace around there.
so we'' ll just adhere to that to make sure that will certainly be our operating factor with those specifications we can.
see that the bottom pump the ddf50 will not be able to deliver sufficient water at that head.
allow'' s have a look at 1 500 litre per hr it will only have the ability to lift the water around.
1.4 meters so that'' s not sufficient for us so we should go for the larger pump currently the.
bigger pump will certainly be allow'' s see 1500 liters will certainly have the ability to raise it virtually 2.5 meters high.
it is always much better to select a little bit bigger pump than to choose a pump that will certainly not.
have the ability to supply the water at the correct head an additional tip that i can offer you is that the pumps.
are a lot more reliable in the direction of the center of the curve so in this field the pumps will be much more.
effective than in this field or around so if your computed results drop within this.
much less if efficient location it will be better for you to try to find an additional pump it always much better.
to opt for a greater high quality pump that might be just a little bit much more costly bear in mind in.
an nft system if your pump falls short as well as you'' re not fast adequate to replace the pump then you.
will certainly shed your plant one more element to think about is the economic climate side of the pump some pumps may.
lift this quantity of water this high and also only usage say a hundred watt greater hours an additional.
pump will do the very same job and perhaps utilize 300 watt hours so the economy side of the pump.
is also essential several of the modern-day pumps got variable frequency drives inside the pump as well as are.
much more reliable than other pumps on your display now you'' ll find another video clip that may.
additionally help you in your journey thank you and bye.

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