They do, but honestly EIO conduits are useless unless you're trying to make something more compact. You can't prevent two from intersecting as far as I know, other than place them in the same block.You can give TE3's fluiducts a try? I do believe there is a white listing configuration for it so you can make certain pipes allow only certain fluids in.
And doesn't Ender IO's pipes have the same option? I vaguely remember a spotlight I've seen ages ago that you only need to right click the section of the pipe with a filled bucket? Or does that make the whole pipeline only accepts one kind of fluid?