farid فهرس المنتدى farid
موقع لبرامج الكمبيوتر والمبرمجين
 
 س و جس و ج   ابحـثابحـث   قائمة الاعضاءقائمة الاعضاء   المجموعاتالمجموعات   شاركشارك 
 نبذة عننبذة عن   ادخل لقراءة رسائلك الخاصةادخل لقراءة رسائلك الخاصة   دخولدخول 

London Plumbers, Plumbing in London, 24 Hour Plumber London

 
انشر موضوع جديد   رد على موضوع    farid فهرس المنتدى -> ساحة النقاش الحر
استعرض الموضوع السابق :: استعرض الموضوع التالي  
مؤلف رسالة
Ads






ارسل: الجمعة اكتوبر 20, 2017 11:16 pm    موضوع الرسالة: Ads

الرجوع الى المقدمة
DavidMix



شاركت: 21 يونيو 2017
نشرات: 1
المكان: United Kingdom

نشرةارسل: الاثنين يوليو 17, 2017 4:44 am    موضوع الرسالة: London Plumbers, Plumbing in London, 24 Hour Plumber London رد مع اشارة الى الموضوع

London Plumbers, Plumbing in London, 24 Hour Plumber London
الأعضاء المسجلون فقط يمكنهم مشاهدة الرابط في هذا المنتدى
عضو مسجل تسجيل الدخول في المنتدى



الأعضاء المسجلون فقط يمكنهم مشاهدة الرابط في هذا المنتدى
عضو مسجل تسجيل الدخول في المنتدى


Plumbing (which comes from the Latin word plumbum, which means 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 a person who fixes or puts in piping systems, plumbing fixtures and equipment for example 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 is in water. Plumbing is different from sewage and water 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 folded seam, 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 sewage systems and separate, underground water 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 clay, lead, bamboo or stone. Today, water-supply systems use a network of high-pressure pumps, and pipes are now made of copper,[4] brass, plastic, or other material that is nontoxic. 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 pipe or tube. A pipe is usually made by casting or welding, where a tube is made through extrusion. Pipe 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'.

In addition to the straight pipe or tubing, many fittings are required in plumbing systems, such as valves, elbows, tees, and unions.

Plumbing fixtures are designed. 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.

الأعضاء المسجلون فقط يمكنهم مشاهدة الرابط في هذا المنتدى
عضو مسجل تسجيل الدخول في المنتدى


_________________
Plumbers London, Plumbing in London, 24 Hour Plumber London

الأعضاء المسجلون فقط يمكنهم مشاهدة الرابط في هذا المنتدى
عضو مسجل تسجيل الدخول في المنتدى

الرجوع الى المقدمة
View user's profile Send private message ارسل الرسالة انتقل الى صفحة المرسل
استعرض مواضيع سابقة:   
انشر موضوع جديد   رد على موضوع    farid فهرس المنتدى -> ساحة النقاش الحر جميع الاوقات تستعمل نظام EET (Europe)
صفحة 1 من 1

 
انتقل الى:  
لاتستطيع وضع مواضيع جديدة في هذا المنتدى
لاتستطيع الرد على المواضيع في هذا المنتدى
لا تستطيع تعديل مواضيعك في هذا المنتدى
لاتستطيع الغاء مواضيعك في هذا المنتدى
لاتستطيع التصويت في هذا المنتدى



Powered by phpBB © 2001, 2005 phpBB Group

Abuse - Report Abuse - قوانين الخصوصية.
Powered by forumup.dk المنتدى مجاني, أنشأ منتداك المجاني! Created by Hyarbor & Qooqoa - Auto ICRA

Page generation time: 0.097