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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 valve. 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. The upper pipe depicts normal flow ...
Valve Corporation, also known as Valve Software, is an American video game developer, publisher, and digital distribution company headquartered in Bellevue, Washington. It is the developer of the software distribution platform Steam and the game franchises Half-Life, Counter-Strike, Portal, Day of Defeat, Team Fortress, Left 4 Dead, and Dota .
A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. [1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.
In 2015, 257 Metro-North Railroad employees made more than $200,000, according to payroll data recently added to the Empire Center for Public Policy’s transparency website, SeeThroughNY.net.
The New York City Transit Authority (also known as NYCTA, the TA, [2] or simply Transit, [3] and branded as MTA New York City Transit) is a public-benefit corporation in the U.S. state of New York that operates public transportation in New York City. Part of the Metropolitan Transportation Authority, the busiest and largest transit system in ...
Apr. 26—GREEN Tennis Club of Albuquerque, 2901 Indian School NE (April 17) Burger King, 10901 Montgomery NE (April 15) Amadeos Pizza & Subs, 809 98th St. SW (April 15) Sbarro Italian Eatery ...
The Massachusetts Bay Transportation Authority (abbreviated MBTA and known colloquially as " the T ") [3] [4] is the public agency responsible for operating most public transportation services in Greater Boston, Massachusetts. The MBTA transit network includes the MBTA subway with three metro lines (the Blue, Orange, and Red lines), two light ...