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unvented system inlet pipe

Discussion in 'Plumbing and Central Heating' started by blake floyds, 13 May 2008.

  1. blake floyds

    blake floyds

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    I have booked to go on unvented training day

    but I have been asked to price putting in a unvented tank

    the work will not be done till I have done the training but so I can price the job right can any one tell me if the inlet pipe on a 300L mega flow can be in 15 mm I can not seam to find any info on it

    my standing press is 4.8 bar
    and the flow rate is 14 letters a min

    is this ok
    only running a bigger pipe from the mains is very very hard and the stop cock is 15 mm

    thanks
     
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  3. andytheplumber

    andytheplumber

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    If you are a qualified plumber you should have covered this any way
     
  4. sooey

    sooey

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    14 ltrs a min is useless for a megaflow anyway, are you sure you're measuring it right?
     
  5. JPC

    JPC

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    sooey....i agree....measure again.

    not normal (in leicester anyway) to get such high pressure and low flow)
     
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  7. blake floyds

    blake floyds

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    i used a flow cup that I got of e bay and had no paper work

    Where do you take the reading from
    I took it that where the water comes out the side that s your flow
     
  8. blake floyds

    blake floyds

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    I used the kitchen tap mat be it was blocked
     
  9. LUNAT

    LUNAT

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    HI

    15mm for 300l tank no good .minimum 22mm inlet pipe required.common sense.
     
  10. blake floyds

    blake floyds

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    ok with that pressure do you think it will bee ok
     
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