Tee-ing off from 2 parallel pipes

[carver]

Hi
I am installing a new rad and need to tee off from 2 parallel copper pipes that are very close together. They are under floor boards in a notch in the joists.
Teeing off the one is no problem (the outer one) but other is blocked by the parallel pipe. (hope I'm explaining this ok).
So should I tee downwards on the second, then bend a pipe back up to be level with the other or will this create a problem with water flow ?
I know there are crossover fittings that look like they are for this problem, but my 2 pipes are virtually side by side.
I am sure that professional plumbers come across this problem and have a way around it.
Thanks

 

[terryplumb]

Bend the pipe and introduce it to the T from below the parallel pipe.

 

[Madrab]

Its called a partial crossover, you cut a tee in and angle it downwards then the partial crossover brings the pipe orientation back up and parallel to the other pipe.

A plumber would usually pull the shape with pipe benders, it's a plumbers bread and butter but you can buy them all pre-shaped these days.

 

[carver]

That's great. Many thanks for your very prompt replies.
Much appreciated