Not sure what you are intending with this. If you're thinking of putting hot wort through it, then Topher is right, it's doubtful it can handle the heat.
But you said "use it with a plate chiller" which implies to me that you're taking the cold water output from this and putting it through a plate chiller while you're putting wort through the other side. I don't believe water chillers like this work on flowing water - they have a small reservoir that they cool so you can get cold water at your tap. The rate at which they cool water is far, far below what a plate chiller needs. That said, it probably would cool tap water some, and if you need a pre-chiller this would probably help. Sorry I don't have flow/chill specs. Good luck, and if you try it, let us know how it works out.