There are numerous spots within a piping program in which it need to be achievable to halt the movement or divert it to a different line. These features are carried out by valves. A. Yes. A lot of businesses and persons use the abbreviation IPS which Ordinarily refers to iron http://stainlesssteeltubing08406.full-design.com/valves-and-fittings-Fundamentals-Explained-28094521