About uses of pipes
Plumbing
Tap water
Pipelines transporting gas or liquid over long distances
Scaffolding
Structural steel
As components in mechanical systems such as:
Rollers in conveyor belts
Compactors (e.g.: steam rollers)
Bearing casing
Casing for concrete pilings used in construction projects
High temperature or pressure manufacturing processes
The petroleum industry:
Oil well casing
Oil refinery equipment
Delivery of fluids, either gaseous or liquid, in a process plant from one point to another point in the process
Delivery of bulk solids, in a food or process plant from one point to another point in the process
The construction of high pressure storage vessels (note that large pressure vessels are constructed from plate, not pipe owing to their wall thickness and size).
Źródło: https://en.wikipedia.org/wiki/Pipe_(fluid_conveyance)#Uses
Exchange siphon
Surely anyone kitchen sink once struggled with the problem of the obstruction. The most common cause water in such devices is the clogging of the trap by the crumbs or simply by fat. When household cleaning siphon ways fail, then we are forced to enlist the help of a plumber. It will be able to use more specialized ways of cleaning the siphon. Sometimes, however, it appears that the trap must be replaced with a new one, fortunately his undoing and the exchange will not be a big problem for a plumber. It will only have to remember the spin valve with water when replacing the siphon. Similarly, in case of replacing the whole sink to a new, although longer carry it out a bit more complicated.
Supply of water to wash
Installation of the new sink is carried out at a time when our existing sink was somehow destroyed or simply we want to replace the sink to a more modern. This installation is performed by a plumber using a variety of hydraulic tools, appropriately tailored to the size of connectors and dimensions of the sink. Some of them are very common, such as screwdrivers, hammers and drills, but the plumber can use them in the right way in order to install the sink. If the new sink is to be built in a different location than the previous one, then the plumber has yet to lead to the water and perform its development. This may involve the need should be smoothened part of the plates and expandable home network plumbing.