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A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.
Usually, each floor drain is connected to a trap, to prevent sewer gases from escaping into indoors spaces. A floor sink is a type of floor drain primarily used as an indirect waste receptor. It is generally deeper than a standard floor drain and can have a full or partial grate, or no grate as required to accommodate the indirect waste pipes.
The drain is characterized by its long length and narrow width, the cross-section of the drain is a function of the maximum flow volume anticipated from the surrounding surface. Channels can range from 1 inch (2.5 cm) to 2 feet (61 cm) in width, while depths can reach up to 4 feet (120 cm).
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Take a simple analogy - water flowing down a drain. In theory, the water could flow straight down the drain without any sort of spin (all that about the draining water spinning the other way in the southern hemisphere is rubbish). But in practice it almost never does, because any slight imbalance (a bit more water on one side, the bowl not ...
A higher hypoid offset allows the gear to transmit higher torque. However increasing the hypoid offset results in reduction of mechanical efficiency and a consequent reduction in fuel economy. For practical purposes, it is often impossible to replace low efficiency hypoid gears with more efficient spiral bevel gears in automotive use because ...
Paper machines usually have at least five distinct operational sections: Forming section, commonly called the wet end, is a continuous rotating wire mesh which removes water from the paper by sucking it out of suspension via vacuum.
A cow with antlers atop a power line pole. Wikipedia contains other images and articles that are similarly shocking or udderly amoosing.. Of the over six million articles in the English Wikipedia there are some articles that Wikipedians have identified as being somewhat unusual.