Help please with bathroom sink

[bjack]

I am trying to replace a bathroom sink, but I do not know how to remove the supply line...there is no nut at the shut off valves....how do you remove these?
Hope this photo is clear enough... thanks for any help you can give....

 

[phishfood]

I have not seen that exact type of shutoff/supply before, but I have dealt with other one piece assemblies. Generally, you have to disconnect the supplies from the bottom of the faucet, then remove the faucet from the countertop or bowl.

 

[havasu]

That valve is pretty much obsolete. I just dealt with the same at a house last week. Fortunately, it was copper pipe with a nut and ferrile (sp), and I was able to thread the new valve right onto the existing nut and once tightened, instant upgrade.