Originally based on the Flow Control mod by GotLag, I wanted these special pipes for more compact designs with the multitude of space fluids and found the given junctions and long pipes not enough. This includes three special junction pipes L, I, and T. with both ground and space variants for when you really want to route two fluids right next to each other.
I suggest using these sparingly, as they can become annoying to deal with and are effectively 1x1 storage tanks made to look like pipes.
I'm deprecating this mod, use this one instead
https://mods.factorio.com/mod/se-flow-control-bridge/discussion