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  1. #1

    Filtreau 20 spray bar pipe size

    Hi,

    I am in the process of plumbing in a Filreau 20 drum filter and I'm a bit stuck on the pipe size to join the spray bar. I have got 1 inch pressure pipe fittings, but when I put the spray bar into a 90 bend it seems too small and loose for a solvent weld fitting. Do I need some sort of a reducer for it to fit? Any help would be much appreciated.

    Greg.



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  3. #2
    Senior Member Rank = Yonsai Stephen01's Avatar
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    Iíll have a look when Iím home. And send a picture


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  4. #3
    Senior Member Rank = Jussai davethefish1's Avatar
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    Quote Originally Posted by Allangles View Post
    Hi,

    I am in the process of plumbing in a Filreau 20 drum filter and I'm a bit stuck on the pipe size to join the spray bar. I have got 1 inch pressure pipe fittings, but when I put the spray bar into a 90 bend it seems too small and loose for a solvent weld fitting. Do I need some sort of a reducer for it to fit? Any help would be much appreciated.

    Greg.
    depends how loose, there are so many brands of pressure fittings... have you tried it in a different 1" fitting could be an odd rogue one...
    some of the brands do seem have wide tolerances... or the sceptical might say they deliberately make their own brand fittings only compatible with thier own brand pipe....

    if it is the right size but just a little loose use a thicker adhesive with more body.
    or stand the fitting on end and support it to allow the adhesive to fill the gap. a little difficult with a spraybar though...
    and wipe cleanly to make a solid meniscus around the pipe. and give it a lot longer to set.
    but we are talking around 1mm gap max here...
    The Solution to Pollution is Dilution

  5. #4
    Thanks for the replies,

    Hi Dave, yes I tried it on a couple of different makes of fittings and it's the pipe on the filter which is smaller. I would say it is 1mm or a little or all the way around too small.
    I am going to plumb it in using a solenoid valve onto mains water, my water pressure is not too high so maybe I could get away with what you say as the pressure should not be too high. It just seems a bit odd, I was thinking maybe they used a metric sized pipe like 32mm and it needs something to make it fit 1 inch nicely?

  6. #5
    Senior Member Rank = Jussai davethefish1's Avatar
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    would have thought the manual would state pipe sizes...

    https://www.filtreau.nl/files/gaw-a5...122016-web.pdf

    a picture might help....
    The Solution to Pollution is Dilution

  7. #6
    Senior Member Rank = Yonsai Stephen01's Avatar
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    Quote Originally Posted by Allangles View Post
    Thanks for the replies,

    Hi Dave, yes I tried it on a couple of different makes of fittings and it's the pipe on the filter which is smaller. I would say it is 1mm or a little or all the way around too small.
    I am going to plumb it in using a solenoid valve onto mains water, my water pressure is not too high so maybe I could get away with what you say as the pressure should not be too high. It just seems a bit odd, I was thinking maybe they used a metric sized pipe like 32mm and it needs something to make it fit 1 inch nicely?






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  8. #7
    20210405_173425.jpg

    20210405_173455.jpg

    20210405_173513.jpg

    Thanks again for replies and pics, I checked the manual, but there is nothing I could find in it about pipe sizes to be honest the manual is quite poor.

    I think I might have to go the same with a flexible rubber fitting to give me a bit more tolerance.

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  10. #8
    Plumbed mine in a few weeks ago and found 32mm fittings fitted perfectly.

  11. #9
    I am using a rubber boot. I think you need an imperial to metric pressure pipe adaptor.


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  12. #10
    I struggled with pipe size when setting up my drum, replaced some pipework a few weeks back and had the same issue.
    I ended up using 32mm solvent weld pipework from screwfix, it was still a little loose but a good smear of gold label around the spray bar and pump outlet sorted it out.

  13. #11
    20210411_101426.jpg

    So I thought I would just post a quick update just incase anyone has the same problem. After a bit of searching I found a 32mm to 1inch reducer which worked perfectly. Thanks for everyone's help

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