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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.
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
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.
A pit latrine, also known as pit toilet, is a type of toilet that collects human waste in a hole in the ground. [2] Urine and feces enter the pit through a drop hole in the floor, which might be connected to a toilet seat or squatting pan for user comfort. [2]
Soon after Castro's decree, many Cuban Americans began making arrangements to pick up refugees in the harbor. On April 21, the first boat from the harbor docked in Key West and held 48 refugees. By April 25 as many as 300 boats were picking up refugees in Mariel Harbor. Cuban officials also packed refugees into Cuban fishing vessels. [30]
Percophidae was first proposed as a family in 1839 by the English zoologist William Swainson as a subfamily of the Percidae. [2] The 5th edition of Fishes of the World classifies this family within the order Trachiniformes and divides it into the subfamilies Bempropinae, Henerocoetinae and Percophinae. [3]
It might be stored in a cabinet with doors to hide it; this sort of nightstand was known as a commode, hence the latter word came to mean "toilet" as well. For homes without these items of furniture, the chamber pot was stored under the bed. The modern commode toilet and bedpan, used by bedbound or disabled persons, are variants of the chamber pot.
Bembrops anatirostris, commonly known as a duckbill flathead, is a species of ray-finned fish in the family Bembropidae. It is a deepwater fish typically found at depths between 100–400 metres (330–1,310 ft) in the western Atlantic Ocean. It can grow to a length of 35 centimetres (14 in). [2]