I'm confused by the question. Regulator set correctly, meter the correct capacity, installation pipe the correct size. 21mbar at the meter test point, 20mbar at the inlet to all appliances at maximum flow rate, happy days.
Think I need to explain what i'm on about :smiley2:
first lets assume the pipe sizing is correct, as we've got a 1mb drop from meter to appliance.
Now lets say you have 15mb w/p at the meter test point with the meter running at 6m3 capacity,
so you shut off some appliances to drop the gas being used down to say 0.5m3 or so.
If the meter w/p rises to 19mb, then you could be looking at a 4mb pressure absorption across the meter, which is aloud.
Or another example, you have 15mb w/p at meter, so you call out transco, they come out and find 19mb at outlet of ecv, then tell you everythings ok, it's just pressure absorption across the meter & 4mb is allowed.
I'm just really asking if anyone has recorded a 4mb loss,
personally, i dont think it would be as much as 4mb, unless the meters fkd.
here's a reason why i'm asking,
if you start off with 15mb w/p at the meter because of pressure absorption,
you could lose another 1mb from meter to appliance, so now 14mb at boiler.
it's possible to lose another 1.5mb through the gas valve, so now we've down to 12.5mb
a lot of boilers no likey 12.5mb :banghead:
but all of the above is within the limits :sad:
