The Pipe is a primarily used to transport liquids from a water pump into a steam engine. The pipe cap has 1 opening, the straight has 2, pipe junction has 3, and the pipe intersection has 4. The pipe turn has 2 openings at right angles. They all have 50 Liquid Capacitance. The prices for these items go from $10,000 to $11,100. It is best to use the least amount of pipes as possible when connecting these to the Basic Water Pumps to the Primitive Steam Engine. You can use the Pipe Monitor to check the amount of fluid in your system and whether it goes up or down each second.