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.
Colonial Paper Money. When the colonies did not have metal to coin, they frequently used paper money. Most colonial notes were bills of credit notes meant to be redeemable in coin. Colonial paper money rarely lasted very long because the colonies generally issued too much of it and the resulting inflation made the bills worthless. Thus the term not worth a Continental..