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2. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.

3. Spark arrestor - Wikipedia

   en.wikipedia.org/wiki/Spark_arrestor

   Centrifugal type spark arrester. A spark arrester (sometimes spark arrestor) is any device which prevents the emission of flammable debris from combustion sources, such as internal combustion engines, fireplaces, and wood-burning stoves. Spark arresters play a critical role in the prevention of wildland fire and ignition of explosive ...

4. Backflow prevention device - Wikipedia

   en.wikipedia.org/wiki/Backflow_prevention_device

   Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

5. Spark extinguishing system - Wikipedia

   en.wikipedia.org/wiki/Spark_Extinguishing_System

   The removal of one of these conditions will greatly reduce the risk of a fire or explosion. Since the combustible dust cannot be eliminated, there is the possibility to use inert gases or to eliminate ignition sources. Spark extinguishing systems are established as preventive fire and explosion protection systems in the industry and craft.

6. Jessica Simpson and Husband Eric Johnson Split After 10 Years ...

   www.aol.com/jessica-simpson-husband-eric-johnson...

   Jessica Simpson and husband Eric Johnson are taking time apart.. The singer and actress, 44, and her former NFL player husband, 45, are separating after 10 years of marriage, Simpson tells PEOPLE ...

7. Flame arrester - Wikipedia

   en.wikipedia.org/wiki/Flame_arrester

   A flame arrester during testing A flame arrester made for a 91 cm (36 inch) pipe weighing 10 tons. A flame arrester (also spelled arrestor), deflagration arrester, [1] or flame trap [2] is a device or form of construction that will allow free passage of a gas or gaseous mixture but will interrupt or prevent the passage of flame. It prevents the ...

8. Taylor Swift Sparkles in $5,500 Embellished Blazer for N.Y.C ...

   www.aol.com/taylor-swift-sparkles-5-500...

   The singer evoked ‘80s officewear in a glittery jacket while dining out with the NFL star and pals Margaret Qualley and Jack Antonoff on Friday night, Dec. 27

9. Scrubber - Wikipedia

   en.wikipedia.org/wiki/Scrubber

   Removal efficiency of pollutants is improved by increasing residence time in the scrubber or by the increase of surface area of the scrubber solution by the use of a spray nozzle, packed towers or an aspirator. Wet scrubbers may increase the proportion of water in the gas, resulting in a visible stack plume, if the gas is sent to a stack.