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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.
A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [ 1 ] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave.
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
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The first-generation Kia Sephia is the first car that was actually designed by Kia with their own chassis. [1] Engines available were the B-series engines, with the 1.5-liter rated at 59 kilowatts (79 hp), the 1.6-liter 78-kilowatt (105 hp), and the 1.8-liter BP engine at 91-kilowatt (122 hp) from 1994.
Trickle valves can be used only on systems operating under negative pressure. The vacuum created inside the dust collector holds the valve closed, allowing a head of material to build up above the trickle valve. Once the pressure of the material equals the negative pressure of the system, the valve is forced open and a trickle of material will ...
The vent/rollover valve provides a method of controlled escape for gasoline vapors during the refueling process. It has a mechanism which closes the vent in the event the vehicle rolls over, to prevent spilling of VOCs or fuel in general. It also acts as a fill limiter. [8] [dead link ]
The flange near the food pipe (esophageal flange) is more rigid than the tracheal flange, near the windpipe. The one-way valve can be molded in one piece with the prosthesis and is often supported by a fluoroplastic valve seat (a colored ring that is tightly secured into the shaft of the prosthesis, adding rigidity and which is radiopaque).