MAKTEK SKY300W Compressor with PEX System in Garage: Is 1/2 inch Installation Sufficient?

Question

Hello I want to build a pneumatic installation in a garage based on a PEX system. The compressor I have is MAKTEK SKY300W (new, more powerful model). Initially I was thinking about 1/2 inch installation and here's the question. Is 1/2 enough? The compressor actually blows over 800 liters /...

andnat · Accepted Answer

I recommend the installation of pipes (gray, rigid) for cold water.
Cheap and good. I propose the main pipe 25, the exits 20. Lead the exits up (swan neck). Buy yourself a welder for PLN 70 and it will be great.

patryk44gks · Accepted Answer

The cross-section of the wires depends mainly on the length of the installation. For example, I have a compressor right behind the garage wall and I have about 3 meters of installation, and I have 1/2 installation and a capacity of 550l / min.
The compressed air supplied by this installation also depends on what it is to be used for.

Plumpi · Accepted Answer

As one of my colleagues wrote, it is best to make the installation of PP welded pipes, or even better of PE pipes as for water with screwed couplings.
During unskilful PP welding, constrictions are formed, which are devoid of PE screw fittings.
I also advise against making gooseneck installations as suggested by one of my colleagues, because water and oil condense in the pipes, which make it difficult to evacuate towards the compressor, because the air flow will always push them towards the exit.
As a result, water and oil will collect in the main pipe.
It is much better to install the installation high with a slight slope towards the outlets, and where clean air is required, use dehydrators and oil separators.

andnat · Accepted Answer

I also advise against making gooseneck installations as suggested by one of my colleagues, because water and oil condense in the pipes, which make it difficult to evacuate towards the compressor, because the air flow will always push them towards the exit.
As a result, water and oil will collect in the main pipe.
It is much better to make the installation high with a slight slope towards the outlets, and where clean air is required, use dehydrators and oil separators. [/ Quote]

For this also use condensate drains :spoko:

andnat · Accepted Answer

I have done this installation myself and it is ok. Your decision about the system, twisted fittings costs a bit, but the pp welding machine too. It also depends on the size of the planned installation.

wnoto · Accepted Answer

The welding machine can be borrowed in supermarkets. When it was probably PLN 20-25 per night.

wada · Accepted Answer

if it is to be used with pneumatic tools then a 1/2 "pex is enough.
In my company, three people calmly work on polishing machines, the installation is 18m.
At the beginning, it is worth giving a filter with an oil separator behind the compressor, there will always be less water in the installation, despite the screw compressor with a drainage system, you have to drain the water from the filter from time to time. behind the filter, you can give exits to tools that do not need oil - blow-off guns, guns for varnishing, silicone application, etc ... and then an oiler for all polishers, staplers, air wrenches, etc ...

andrzej lukaszewicz · Accepted Answer

The larger the diameter, the greater the accumulation possibilities of such an installation at sudden loads, e.g. large pneumatic wrenches.
I recommend PP min 25 (16 in the middle) and preferably 32 (21 in the middle)
A reasonable idea is a PE pipe, e.g. O 32, 25, 20 is cheap and fittings cost pennies.
The disadvantage is that it is sold in coils, requiring partial fixation to maintain the aesthetics of the installation. Same with pex. In this respect, PP welded pipes perform best.
Pex has the disadvantage that the fittings have a large narrowing in relation to the nominal diameter of the pipe.

andrzej lukaszewicz · Accepted Answer

10 or 12 bar depending on the wall thickness - blue pipes. There are PE-HD versions and some withstand 16 bar.

andrzej lukaszewicz · Accepted Answer

You can buy PE pipes and fittings at any plumbing store. The blue ones withstand 10 or 12 bar depending on the wall thickness. The condition of the temperature of the medium below 30 degrees C.

Majsterkowicz5 · Answer

Hello Sorry to be absent (forgot to look). So, in your opinion, it would be better to install PE pipes than PEX?

Majsterkowicz5 · Answer

The installation will be about 12m long, I care more about pex only as I wrote above, or 1/2 is enough?

Majsterkowicz5 · Answer

The installation will look something like this:

When it comes to PP, there is no welding machine and I have nowhere to borrow and buy only for this one job, it also makes no sense. I was interested in the EP system. Does any of your colleagues know how much the bar can withstand such an installation?

Majsterkowicz5 · Answer

Do you know any shop where you can buy a pipe and fittings for the PE system at a good price? Somehow, I can't find anything interesting. I found a shop where they have an interesting range of PE, but the pipe supposedly withstands 4 bars Is it possible? pressure class PN4, that is, as if true.

Majsterkowicz5 · Answer

Pipes and fittings are here. Of course everyone helped and thank you very much. In order not to assume a new topic anymore, I will also ask about filters, reducers, etc. I want to buy all Adler fittings. I know that, for example, in RQS filter cartridges are replaced, and in Adlerach, the manufacturer does not write anything about replacement and cartridges. How is it with that? In the case of Adler, do you have to replace the whole thing or does it clean? Does anyone know?

patryk44gks · Answer

I have no idea about Adler filters. But I have a 40-micron filter and a 5-micron filter-reducer fake RQS and I will say that for this price there is probably nothing better, and as for the filters, they are very cheap and replacement is a pleasure

Majsterkowicz5 · Answer

I mean, I mean that there are filters (not cartridges) in which the filter cartridge is not replaced (I think because there are no cartridges for them) and I wonder what later? Is it cleaned and that's it or the whole thing to be replaced. Here is an example: ADLER AD4005F. In RQS or even in their imitations, I know that the filter cartridge is replaceable, just like in CKD.

Could colleague patryk44gks direct me where it would be possible to buy something like the aforementioned "RQS"?

patryk44gks · Answer

As for the Adler filter, I will not help because I have not had contact with it. And when it comes to RQS, I have 1/2 but I have fakes that work quite well, the same steam trap for 1/2 costs about PLN 75, of course, it's a fake. It depends on what you want to use, i.e. what devices you want to supply with this air. If for professional use, then the CKD block will be the best choice, but the filters are quite expensive or look for the original RQS where the filter costs a few zlotys
The original rqs is orange (but be careful because, for example, on the allegro, fakes are also orange on the photo).

grewan · Answer

I have an old installation made of PP pipes and I would like to change it because of the narrowing during welding. I plan to make PE 40 pipes with twisted fittings, how does such an installation work for you after years? I am also wondering whether I should not give steel, aluminum tanks on the compressor-tank section, because Pe does not know if it will work in this section, I also have a cyclone separator in between.

andrzej lukaszewicz · Answer

Installation of PP pipes has no narrowing, the internal diameter of the pipes is practically maintained everywhere.

grewan · Answer

I have narrowings on the welds and now I am replacing it with pe because I care about the inner diameter of 32mm.

Anonymous · Answer

When welded according to the welding tables, there are no constrictions. You can google tables.

wnoto · Answer

And how do you know that your pipe diameter is too small?

grewan · Answer

After the constrictions caused by my welding a few years ago, the guitar is still full. I use the diameter that the devices require.

MAKTEK SKY300W Compressor with PEX System in Garage: Is 1/2 inch Installation Sufficient?

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