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A drain-waste-vent system (DWV) is the plumbing system that captures and routes sewage and greywater from fixtures to a treatment system. It includes vent pipes to prevent vacuum and sewer gases, and traps to block them from entering buildings.
A piping and plumbing fitting is a device used to connect, adapt, or regulate pipes or tubes carrying fluids. Learn about the types, materials, standards, and applications of fittings in different plumbing systems.
Learn about the main equipment and systems of a petroleum onshore drilling rig, such as mud tanks, blowout preventers, drill bit, and drill pipe. See a simple diagram and explanations of each component and its function.
AOL Mail offers secure and personalized email with features like AOL Mail, news, and weather for free. You can also access your email on the go with an iOS & Android app and get help from experts.
Perforator veins connect superficial and deep veins in the lower limb and have valves to prevent blood reflux. Learn about their anatomy, clinical significance and minimally invasive techniques to treat incompetent perforator veins.
The femoral vein is a deep vein that accompanies the femoral artery in the femoral sheath. It drains blood from the thigh and becomes the external iliac vein at the inguinal ligament. Learn about its structure, course, tributaries, and clinical significance.
Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain [1], surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...
An external floating roof tank is a storage tank for petroleum products with a floating roof that reduces evaporative loss and fire risk. Learn about its advantages, disadvantages, system function and related terms.