So, despite the issues we had with the pelletized hops yesterday, I was thoroughly impressed with Dude's plate chiller/march pump setup. Thing is, I don't want to have to buy/build a keggle. I have a 15 gallon aluminum kettle, but no spigot. I also have a 50L stainless mash tun that someone gave me awhile back. It's got a false bottom, and has a spigot welded into it:
It's hard to see, but the ball valve is made of hard plastic. I have no idea what kind of heat it's rated for, though. But if I were to try to set this up for a march pump/shirron assembly, I'd want to use the stainless kettle as the boil vessel. What do you think? Will the heat from the boil melt the valve?