On 16/05/2019 17:51, Jim K.. wrote:
Adam Funk Wrote in message:
Just to be clear, I'm talking about combining these two parts:

Compression Wallplate Elbow 15mm x 1/2"
https://www.toolstation.com/compression-wallplate-elbow/p74070

Hose Union Bib Tap with Double Check Valve 1/2" DZR
https://www.toolstation.com/hose-union-bib-tap-with-double-check-valve/p54792

I was under the impression that if you install the elbow so that
supply pipe is coming straight down to it, the tap should screw all
the way into it & end up pointing down. (I'm pretty sure that's what
I did with the old ones, which were removed as part of a kitchen
renovation, so I've installed new ones in a different place outside.)

In practice, however, I installed two of these the same way but they
ended up pointing in slightly different directions, neither straight
down. I ended up packing a couple of fibre washers in each elbow
until I got the right direction. What am I missing?

Thanks.


Ptfe tape?

I find that hemp is better for this sort of thing.