Types of valves. The many different types of valves all have different names. The most common ones are the butterfly, cock or plug, gate, globe, needle, poppet, and spool: Ball: In a ball valve, a hollowed-out sphere (the ball) sits tightly inside a pipe, completely blocking the fluid flow.
Re: Surely someone must know where Canadian money is printed? Hi, thanks for the reply. From what I've gathered the BoC distributes notes, but they don't make them. I seem to recall the 2012 thing was in reference to not making paper money, and the shift to plastic/polymer notes.
The one dollar Loonie is 11-sided and made from an alloy the Royal Canadian Mint calls aureate (bronze-plated nickel.) As noted before, the two dollar Toonie is bi-metallic, from 1996 to 2011 it had an outer ring of pure nickel, with a center made of a primarily copper alloy.