Modern industry have a lot of pipes. A LOT!
https://media.nakanune.ru/imag…tures/image_big_83391.jpg (gas condensing)
http://kavkazplus.com/photos/npz.jpeg (oil refinery)
http://www.proatom.ru/img11/kovalev_r1.jpg (atomic reactor)
but with "Industrial Craft 2" need run (and fast run) with Fluid Cell to transfer any fluid between blocks.
Many kinds of cables is very good idea. But where is pipes?
In mod "Thermal Foundation" exist pipes for cold fluids (water, oil) and for hot fluids (lava). Maybe stole idea from "Thermal Foundation" (or write letter to author) and realize pipes in "Industrial Craft 2"? For cold fluid (water, sludge, essence, air, cold coolant), warm (canola oil, refined oil) and hot fluids (lava, po-ha-ha lava, steam, hot coolant).
Make labyrinth from pipes and make all working is better that "run with buckets".
For examples - Liquid Heat Exchanger produce "hot coolant" from "cold cooland" and Blast Furnance use "hot coolant" and exract "cold coolant". Both must have input and output holes for connect to pipes. To pipes can connect other producer of heat, or other user of heat. And one Liquid Head Exchanger can be used with many receivers. Or one Blast Furnance can receive heat from many Heat Exchanger, for increase speed of processing.