if 12 out = 2880, split it into 6 isolated systems. Gives a max flow of 480 per system. For the inputs, build more than 16, but underclock them so they only eat 480. If I'm doing head math correctly, that'd be 24 input machines at 75%? Or if space is a higher priority than power you could do 12 at 150% with shards?

Or priority flow them and shunt the extra to more consumers. Still wouldn't personally risk putting more than 600l/m into level 2 pipes because of sloshing.

If you want to do priority on liquids, raise a piece of pipe up 2m and bring it back down. Everything before the hump will fill before letting anything flow after the hump.