Ｐａｇｅ 1759212 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 通常モードに戻る ┃ ＩＮＤＥＸ ┃ ≪前へ │ 次へ≫ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▼London Plumbers, Pl DavidMut 17/12/1(金) 7:32 ─────────────────────────────────────── ■題名 ： London Plumbers, Pl ■名前 ： DavidMut <plumbing5798@mail.ru> ■日付 ： 17/12/1(金) 7:32 ■Ｗｅｂ ： http://expert-plumbers.co.uk/ -------------------------------------------------------------------------
| London Plumbers, Plumbing in London, 24 Hour Plumber London https://en.wikipedia.org/wiki/Plumbing - https://en.wikipedia.org/wiki/Plumbing http://expert-plumbers.co.uk/ - More info>>> Plumbing (which comes from the Latin word plumbum, which suggests lead, as pipes were once made from lead) is the job of working with pipes, tubing and plumbing fixtures for drinking water systems and getting cleared of waste. A plumber is somebody who fixes or puts in plumbing fixtures, piping systems and equipment like water heaters. Many plumbers are construction workers. The plumbing industry is an important part of every developed economy because people need clean water and safe ways to move and store waste.[1 - Plumbing also refers to a system of pipes and fixtures put in a building to move the and water get rid of waste that's in water. Plumbing is different from water and sewage systems because plumbing system serves one building, while sewage and water systems serve a group of buildings or a city. Contents [hide - 1 History 2 Materials 3 Regulation 4 References History[change | change source - Roman lead pipe with a seam that is folded, at the Roman Baths in Bath, England Plumbing was very rare until modern cities grew in the 19th century. At about the same time, public health leaders began wanting better systems to get rid of waste. Before this, people got rid of waste by collecting it and dumping it onto the ground or into rivers. However, there were some plumbing pipes in the city settlements of the Indus Valley Civilization by 2700 B.C.[2 - Plumbing was also used during the ancient civilizations such as the Greek, Roman, Persian, Indian, and Chinese civilizations as they built public baths and needed drinking water, and somewhere to drain waste. The Romans used pipe inscriptions to stop people from stealing water. These systems didn't improve much over the years. There were almost no improvements from the time of the Roman aqueducts and sewers until the 19th century. Eventually the development of separate, underground water and sewage systems got rid of open sewage ditches and cesspools. Most large cities today send solid wastes through pipes to sewage treatment plants. Treatment makes the water more pure before it goes into streams or other bodies of water and separates water from waste. Most places stopped for drinking water after World War II because of the dangers of lead poisoning using lead. At this time, copper piping was started because it was safer than using lead pipes.[3 - Materials[change | change source - Water systems in ancient times used gravity to move water. They used pipes or channels made of bamboo, lead, clay or stone. Today, water-supply systems use a network of high-pressure pumps, and pipes are made of copper,[4 - brass, plastic, or other nontoxic material. Drain and vent lines are made of plastic, steel, cast-iron, and lead. Lead isn't used in pipes today because it can be poisonous.[5 - [6 - [7 - Piping being placed for a sink For working on pipes and fittings, plumber wrench The 'straight' sections of plumbing systems are of tube or pipe. Where a tube is made through extrusion, a pipe is made by casting or welding. Pipe usually has thicker walls and may be threaded or welded, where tubes have thinner walls, and needs special joining techniques for example 'brazing', 'compression fitting', 'crimping', or for plastics, 'solvent welding'. Along with the straight pipe or tubing, many fittings are required in plumbing systems, such as valves, elbows, tees, and unions. Plumbing fixtures are designed for the people who use the water. Some examples of fixtures include water closets (also known as toilets), urinals, bidets, showers, bathtubs, utility and kitchen sinks, drinking fountains, ice makers, humidifiers, air washers, fountains, and eye wash stations. https://en.wikipedia.org/wiki/Piping_and_plumbing_fitting - https://en.wikipedia.org/wiki/Piping_and_plumbing_fitting |