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Gooseneck vent with check valve being repainted. A gooseneck (or goose neck) is a 180° pipe fitting at the top of a vertical pipe that prevents entry of water. Common implementations of goosenecks are ventilator piping or ducting for bathroom and kitchen exhaust fans, ship holds, landfill methane vent pipes, or any other piping implementation exposed to the weather where water ingress would ...
At a building the wires enter a conduit, a protective metal pipe, and the weatherhead is a waterproof cap on the end of the conduit that allows the wires to enter without letting in water. It is shaped like a hood , with the surface where the wires enter facing down at an angle of at least 45°, to shield it from precipitation.
Early 20th century industrial gas processing plant near Petrolia, Texas. Structure is illustration of natural ventilation with a ridge vent. A ridge vent is a type of vent installed at the peak of a sloped roof which allows warm, humid air to escape a building's attic. Ridge vents are most common on shingled residential buildings.
A kitchen hood in a small apartment. A kitchen hood, exhaust hood, hood fan, extractor hood, or range hood is a device containing a mechanical fan that hangs above the stove or cooktop in the kitchen. It removes airborne grease, combustion products, fumes, smoke, heat, and steam from the air by evacuation of the air and filtration. [1]
Labconco introduced the concept of a fume hood lined with fiberglass to improve durability and chemical resistance, [3] though from the 1990s onward, epoxy powder-coated steel, teflon and polypropylene coatings [8]: 169 were being recommended by literature for use in fume hood and exhaust construction. [10] [11]
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