I'm just about to start a kitchen refit and would like to put a decent modern mono-block mixer in. However, it's mains cold and tank fed hot (as I'd imagine a fair few are).
To balance one of the bathrooms out in this situation recently, I simply used a PRV fitted below the mixer on the cold. But for the kitchen, I actually need a good strong cold water flow for my big ISE waste disposal.
My current kitchen mixer is a twin-flow (quite old - no idea of the brand), but there doesn't seem to be many about these days, and certainly not many nice contemporary ones. Best I've come up with is Ideal Standard "Affinity".