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.
Canadian twenty-dollar note. This article relies too much on references to primary sources. (September 2011) The Canadian $20 note is one of the most common banknote of the Canadian dollar; it is the main banknote dispensed from Canadian automatic banking machines (ABMs). The newest version, the Frontier Series polymer note, was released to the general public on November 7, 2012, replacing the banknote from the Canadian Journey Series.