Use a pipe like this for hot water
http://www.made-in-china.com/image/2...1600150-2-.jpg
Most dishwashers will be fine with hot water, just make sure the hose is good for hot water...else the heat will make plastic parts soften and they will pop off with the pressure.
I couldn't recommend the Fisher and Paykel dish drawer inlet hose enough. Unfortunately I trawlled the internet looking for photos of one and I coudln't find any. This is a single solid mould of plastic and it's interal diameter is designed to limit the pressure to 300kPa which is ideal for a dishwasher.
Dan.