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
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.
About pipe material
A pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow ? liquids and gases (fluids), slurries, powders and masses of small solids. It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members.
In common usage the words pipe and tube are usually interchangeable, but in industry and engineering, the terms are uniquely defined. Depending on the applicable standard to which it is manufactured, pipe is generally specified by a nominal diameter with a constant outside diameter (OD) and a schedule that defines the thickness. Tube is most often specified by the OD and wall thickness, but may be specified by any two of OD, inside diameter (ID), and wall thickness. Pipe is generally manufactured to one of several international and national industrial standards.1 While similar standards exist for specific industry application tubing, tube is often made to custom sizes and a broader range of diameters and tolerances. Many industrial and government standards exist for the production of pipe and tubing. The term "tube" is also commonly applied to non-cylindrical sections, i.e., square or rectangular tubing. In general, "pipe" is the more common term in most of the world, whereas "tube" is more widely used in the United States.
Both "pipe" and "tube" imply a level of rigidity and permanence, whereas a hose (or hosepipe) is usually portable and flexible. Pipe assemblies are almost always constructed with the use of fittings such as elbows, tees, and so on, while tube may be formed or bent into custom configurations. For materials that are inflexible, cannot be formed, or where construction is governed by codes or standards, tube assemblies are also constructed with the use of tube fittings.
Źródło: https://en.wikipedia.org/wiki/Pipe_(fluid_conveyance)