JohnnyD
Member
Mayenne (53) When Covid allows..........Which isn't very often these days........
Posts: 2,003
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Post by JohnnyD on Apr 27, 2022 14:30:04 GMT 1
Finally got round to measuring it here in France....
5.5 Bar
Seems a bit high to me?
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suein56
Member
Southern Morbihan 56 Brittany
Posts: 7,488
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Post by suein56 on Apr 27, 2022 14:58:31 GMT 1
A bit too high, yes .. normal pressure is around 3 - max 5 bars. More than 5 is considered too high.
We have a pressure reducer to lower ours to around 3.5 or so bars IIRC.
Others will know better than me.
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Post by lurcher on Apr 27, 2022 15:27:01 GMT 1
There is a pressure regulator at the entry point to our house in France The pressure through the house is 3 bar. In the UK I fitted a regulator dropping the pressure from between 7 and 11 bar down to 3 bar as recommended by assorted plumbers and builders who all exclaimed that I was heading for trouble, particularly with all our water fed appliances. I retained one outlet to the garden tap at the incoming pressure.
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Post by pcpa on Apr 27, 2022 19:15:34 GMT 1
There is no maximum pressure for the public supply, above 5 bar & you can consider a reducteur de pression but at only 5.5 bar I would not bother, the groupe de sécurité on your ballon won't release till 7 bar.
If you know where your Chateau D'eau is you can calculate your hydrostatic pressure from the relative elevations, I say this because you may have measured your incoming presure while they were pumping the water manually during maintenance, my pressure is 3 bar but it goes up to 6 bar on Sunday mornings when they do some sort of changeover at the chateau d'eau.
My pal has 10 bar (he has a réducteur) others have 15 bar, I am jealous of them and you.
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suein56
Member
Southern Morbihan 56 Brittany
Posts: 7,488
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Post by suein56 on Apr 27, 2022 19:31:55 GMT 1
As was explained to us a higher constant than 5 bar can cause unwanted effects on domestic connections for washing machines and dishwashers.
Seems a good enough reason for me to avoid 10 or 15 bar.
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Post by pcpa on Apr 27, 2022 22:23:46 GMT 1
They are all rated to well in excess of the pressures that we are speaking of and will function normally, however we have probably all experienced a leak from a hose etc on an older machine, the higher the pressure the sooner a weakened component will let go hence the recommendation for a réducteur de pression above.
Its the groupe de sécurité on the ballon d'eau chaude that really needs the protection, mains pressure at say 6 bar will have them over the 7 bar release during the heating cycle wasting water and electricity.
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