Hi
I'll write in english, because i don't speak czech language.
I hope you will not delete my post, and will try to help me, to find the right way .
Systém UNIFLEXPLUS+ 75mm pipes
http://www.multivac.cz/produkty/system-u…
http://www.multivac.cz/produkty/ohebna-h…
Can i use this 75mm(63mm interior) pipes for cca 200qm builded space ( 170qm usefull space ) ?
I saw it this pipes are for 30m3/h air flow value .
But what about pressure loss ? 75mm it's too small diameter ? Will have a high pressure loss ?
I need to use 2 x 75mm pipes for one ventil ?
Hi, for an area of 170qm is suitable unit with an output power of 500 m3/h. You should use 16 pieces duotec hoses and…
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http://www.kwleasyplan.de/cm/docs/Plamo_einzelseiten/Helios_KWL_PlaMo_0707_S_18_f.pdf Unfortunettly i have just…
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Can You give me contact to english web pages refer to this problem.
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27 odpovědí
Zobrazit všechny reakceHi,
for an area of 170qm is suitable unit with an output power of 500 m3/h. You should use 16 pieces duotec hoses and the two put into distribution boxes. But it depends on the number,size and type of rooms.
This it's a good duct for ventilation system ?
If i'll use this type of duct with 125mm diameter will be good ?
But in picture you can see it, the interior of duct isn't smooth, so there will can remain powder and dirty just like in 75mm PVC flexible ducts .
Uniflexplus+ 90 mm:
http://www.uniflexplus.sk/uniflexplus_90…
http://www.venmar.com.pl/elementy/info_u…
http://www.comair.nl/comair/uniflexplus-…
It's better to use 90mm flexible ducts with 2 paralell duct to one ventil ?
http://www.comair-polska.pl/produkty-kan…
In the above link it show it the interior of duct it's smooth .
I don't know it that's true or it's just marketing .
In attached picture, it show it, for 75mm ducts must to use 2 kanals ( 2 paralell tubes for one ventil )
With 90mm ducts, you can use just one single duct for 1 ventil .
But inside of Multivac Uniflexplus pipe, it's white, and outside it's blue .
So, it's not smooth inside ?
What anything i can use instead of this 75mm(63mm) pipes, to be comparable as price ?
Because 50m of pipes, cost 90 euro inclusiv VAT ( by Multivac )
And if i'll use 2 paralell pipes, for one single ventil , just like in attached picture ?
Will not bu suitable for ventilation system ?
https://forum.tzb-info.cz/121519-rekuper…
I saw it in this thread ( with google translate ), you have debate it in past, about this PVC flexible pipes for ventilation systems .
What choices i have, instead of this flexible pipes, for the same prices ?
http://ventilatoryzlin.cz/plastove-potru…
For low profile requirements are suitable thin oval or rigid PVC retangular duct.
I'm from Hungary .
http://www.wolf-online-shop.de/LUeFTUNG/…
http://www.zehnder-systems.de/comfosyste…
http://www.bonit.at/wordpress/?p=940
But i saw this kind of tubes are used for ventilation system in many countrys .
Even if the inside it's smooth , it's noot suitable for ventilation system ?
I can't use more paralell tubes, to have acceptable pressure drop ?
What should i use instead of this tubes, to fit unten gips karton false ceilling : cca : 13cm space ( gips carton 2cm, profil 5cm, and 13 space = totally 20cm ) ?
What other cheapest option i have for ventilation system instead of PVC flexible pipe ?
thank you
luk
You can try this calculator.
http://www.pressure-drop.mobi/
I supposed that graph i "good too" and reality is worse. See picture.
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