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.
Another of one of the world's most valuable coins is the 1911 Canada silver dollar, it was a failed attempt to produce the first 1 dollar coin for Canada. only 3 were minted and 1 was made out of lead. this coin was one in the guiness book of world records for being the most valuable coin. a few years ago one sold at auction for $1,000,000