Hello All

I have some new rads that will be rocking up soon. In the past I have
used 15mm valves and used an internal reducing set to reduce down to
8mm microbore which worked very well. Just looking at buying some
Drayton TRV4 valves for the upstairs and was wondering if it would be
better to buy 8mm valves rather than use a reducing set. Will the 15mm
valve produce better flow into the rad or will it make little
difference?

Thoughts and comments appreciated

TIA

Cheers

Richard

In an earlier contribution to this discussion,
wrote:

Hello All

I have some new rads that will be rocking up soon. In the past I have
used 15mm valves and used an internal reducing set to reduce down to
8mm microbore which worked very well. Just looking at buying some
Drayton TRV4 valves for the upstairs and was wondering if it would be
better to buy 8mm valves rather than use a reducing set. Will the 15mm
valve produce better flow into the rad or will it make little
difference?

Thoughts and comments appreciated

TIA

Cheers

Richard

It won't make any difference. The internals of the valves are probably the
same anyway, with just the external pipe connection being different.
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Ok Thanks, 8mm it is then.

Cheers

Richard