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.
Money Facts. 1  Quarters, nickels, and dimes are currently made from nickel and copper. 2  Pennies are currently made from copper plated zinc. 3  Coins with ridges were originally made with precious metals. The ridges were used to easily detect people clipping or filing off these precious metals.  A U.S. Quarter has 119 grooves on its circumference.