Stubbing NPT shower valve to PEX, thread or solder first?

[Vinmassaro]

Hi, I bought an Isenberg shower valve I need to stub out to 1/2" PEX and it only has 3/4" NPT connections. I will be using pipe dope on the 3/4" adapter but can I install it first and then sweat on the elbow after without screwing up the pipe dope connection on the adapter? Or should I install the adapter fully with pipe dope, tighten it down, mark the adapter and elbow, remove and solder, then thread the whole thing back in?

Thanks in advance.

 

[James Henry]

Solder everything together then thread onto valve. no marking needed.

 

[Sponsor]

 

[Vinmassaro]

Solder everything together then thread onto valve. no marking needed.

Ok, my worry there was being able to have the elbow point in the direction needed while also being tight enough to not leak.