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Duckbill exhaust valve for Draeger twin hose regulator. A duckbill valve is a check valve, usually manufactured from rubber or synthetic elastomer, and has two or more flaps, usually shaped like the beak of a duck. [1] It is commonly used in medical applications to prevent contamination due to backflow. A cross-section diagram of a Duckbill valve.
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.
The group also sponsored the Thomas Crapper Memorial Award, which was given to "the person who has made an outstanding contribution to the cause of CEPTIA and free toilets." [1] In 1973, Chicago became the first American city to act when the city council voted 37–8 in support of a ban on pay toilets in that city. According to at least one ...
Duckbill may refer to: Platypus, Ornithorhynchus anatinus; Duckbill dinosaurs, family Hadrosauridae; Duckbill fishes, family Percophidae; Duckbill eels, family Nettastomatidae; Duckbill choke, a shotgun accessory; Duckbill valve, a valve used to prevent back flow; Duckbill (rock formation), Oregon; Duckbill mask
A toilet seat in the upright position. Toilet seats often have a lid. This lid is frequently left open. The combined toilet seat and lid may be kept in a closed position when a toilet is not in use, making it so—at a minimum—the lid must be raised prior to use.
The Mariel boatlift (Spanish: éxodo del Mariel) was a mass emigration of Cubans who traveled from Cuba's Mariel Harbor to the United States between April 15 and October 31, 1980. The term "Marielito" is used to refer to these refugees in both Spanish and English.