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.
1 That doesn't mean there is $541 million more money circulating today than there was yesterday, though, because 95% of the notes printed each year are used to replace notes already in circulation. 2  How many pennies were made in 1998? 3  There were more than 10 billion pennies made in 1998. Coins are usually made of copper and another element, such as zinc or nickel. 2  Currency paper is composed of 25 percent linen and 75 percent cotton. 3  Red and blue synthetic fibers of various lengths are distributed evenly throughout the paper.