RE: Flow switch recommendations

[Paul Gale <groups2@xxxxxxxxxxxxxxxx>]

I bought these:

http://cpc.farnell.com/jsp/level5/module.jsp?moduleId=cpc/265321.xml

They don't seem to limit the shower flow at all (and they're fairly cheap).

Our water supply is 15mm around the house, so I used step up/down fitting
to use these - and I used the 22mm version so I didn't restrict the flow.

Paul.

> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Tim Hawes
> Sent: 27 December 2009 14:11
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Flow switch recommendations
>
> It depends on what flowrate your combi can deliver... They have a
> maximum heat output which usually corresponds to a stated temperature
> rise at a specific flowrate. Higher flows will result in less
> temperature rise, lower flows in a higher temp rise of the water.
>
> One parameter missing from the datasheet is the pressure loss consumed
> by having the flow switch in the line - as you're adding a restriction
> it will reduce the pressure at the shower head, knowing what that loss
> is will help in the decision-making process :-)
>
> HTH somewhat,
>
> Tim.
>
>
> On Fri, Dec 25, 2009 at 7:58 PM, noel <noel@xxxxxxx> wrote:
> > Hi all,
> > looking for advice on flow switches,  http://tinyurl.com/y9ff6gc
> > this one seems to say max flow rate of 20litees/min, surely
that's
> not enough for a good domestic shower fed from a combi boiler??
Looking
> to trigger mirror heat pads when the shower comes on.
> >
> > Bearing in mind it's Christmas day and I'm posting on here, in my
> defence I'm now funds approved to start buying for the bathroom!!!
> >
> > Any advice gratefully accepted,
> >
> > Thanks
> > Noel
> >
> > Ps happy Christmas all
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
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