Pipe - what is it?
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.
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)
Some facts:
"Piping" sometimes refers to Piping Design, the detailed specification of the physical piping layout within a process plant or commercial building. In earlier days, this was sometimes called Drafting, Technical drawing, Engineering Drawing, and Design but is today commonly performed by Designers who have learned to use automated Computer Aided Drawing / Computer Aided Design (CAD) software.,
Plumbing is a piping system with which most people are familiar, as it constitutes the form of fluid transportation that is used to provide potable water and fuels to their homes and businesses. Plumbing pipes also remove waste in the form of sewage, and allow venting of sewage gases to the outdoors. Fire sprinkler systems also use piping, and may transport nonpotable or potable water, or other fire-suppression fluids.
Piping also has many other industrial applications, which are crucial for moving raw and semi-processed fluids for refining into more useful products. Some of the more exotic materials of construction are Inconel, titanium, chrome-moly and various other steel alloys.
Źródło: https://en.wikipedia.org/wiki/Piping
Plumbing carried out in a domestic boiler
Hydraulic works carried out in a domestic boiler are mainly related to the installation of the boiler and the foundation and checking correct operation of the water meter. Counter water must be installed by an authorized plumber who will also make his sealing. In case of any doubt, will also check a meter on the water especially when he suddenly began to show much higher water consumption than before. Usually installed in the boiler room is also a boiler, water heater. After its installation, the current home plumber, could also make his first start and check thanks to proper operation. Household members will be happy with such a solution, especially if the first use of the gas boiler.