Valves Ltd., Parkside

Does anyone remember the factory that used to make valves near Rolls Royce during the sixties and early seventies? I'm trying to remember what it was called.

It was known as "VALVES COVENTRY" or "COVENTRY VALVES"

I think they were actually "Valves Ltd"

Thanks to both of you. I thought that might have just been its nickname. It was annoying me because I used to work there and thought I should at least remember what it was called!