Question first: Is it currently possible to output water from the Mekanism Industrial Turbine?
Answer (thanks to u/rreeggkk): Connect the pipe to a Turbine Vent.
I'm playing with Mekanism v9.1.0.281 for Minecraft version 1.7.10. According to aidencbrady.com, this is the latest version for Mekanism on 1.7.10.
I'm under the impression that you can export water from the Turbine after steam has been processed in it. I was lead to believe this by the "Saturating Condenser" block, whose tool-tip states "A block that condenses steam by an Industrial Turbine into water. These can be placed in any arrangement above your rotational complex."
I've placed multiple Saturating Condensers above the rotational complex. The multi-block forms properly. The statistics tab of the Turbine GUI lists a positive number for max water output. When I try to extract water from the Turbine from any face or height, I'm not able to. I have tried connecting fluid export pipes from numerous mods to the Turbine Valve, but can't get water to export. Is this feature not yet implemented? Or am I possibly doing something wrong? For what it's worth, the GUI doesn't show an internal storage tank for water.
EDIT: Something I forgot to mention, is that I haven't been able to get the multi-block to form with any Saturating Condenser blocks on the exterior of the structure. So far, I've only been able to get it to form with the Saturating Condenser blocks on the interior of the structure, above the rotational complex. This means they are outside the reach of pipes. I've tried poking around to see if I can get the multi-block to form with any of them on the exterior, and I have failed to do so. I can't try connecting pipes to these blocks directly rather than a Turbine Valve. It just isn't possible.