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Posted by Nick Hull on July 29, 2005, 11:35 am
> > Hello,
> >
> > Should I purchase a ball valve marked 'high pressure' or one that is
> > marked 'low pressure'? It's for the water tank in the loft fed by the
> > rising main.
> >
> > Hope I make sense :)
> >
> > Wayne.
>
> Depends on your interpretation of high and low pressures. Do they give any
> number, such as 250 WOG? You can always use a high pressure in a low
> pressure situation, but not the other way around so why not be safe?
>
>
My SWAG is that low pressure is for gas lines.
--
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