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  2. Flow control valve - Wikipedia

    en.wikipedia.org/wiki/Flow_control_valve

    The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    499 Token Required (Esri) Returned by ArcGIS for Server. Code 499 indicates that a token is required but was not submitted. [37] 509 Bandwidth Limit Exceeded (Apache Web Server/cPanel) The server has exceeded the bandwidth specified by the server administrator; this is often used by shared hosting providers to limit the bandwidth of customers. [38]

  4. Double check valve - Wikipedia

    en.wikipedia.org/wiki/Double_check_valve

    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.

  5. Fix problems reading or receiving AOL Mail

    help.aol.com/articles/fix-problems-reading-or...

    Messages are often delivered right way though very rarely there may be a delay in transit. This is usually due to problems on the mail server, heavy internet traffic, or routing problems. Unfortunately, other than waiting, you won't be able to determine if the message is delayed or undeliverable.

  6. Troubleshooting AOL Desktop Gold

    help.aol.com/articles/aol-desktop-troubleshooting

    If AOL Desktop Gold is running slowly, try the solutions listed below. After trying a solution, please see if the problem with your Desktop Gold is fixed. If it's not, please continue to the next solution until the problem is fixed. Exit and restart Desktop Gold • If the issue still exists, proceed to the next step.

  7. Fix problems with Games on AOL.com - AOL Help

    help.aol.com/articles/troubleshooting-games-com...

    Games on AOL.com offers hundreds of free online games. Discover solutions to common issues on Games on AOL.com and get back to playing.

  8. Government shutdown live updates: Senators grow agitated with ...

    www.aol.com/government-shutdown-live-updates-gop...

    Republican congressional leaders Thursday night failed to pass a revamped plan to avoid a government shutdown looming Friday night -- and to satisfy President-elect Donald Trump's explosive demand ...

  9. US power deals down 36% in last year due to political ...

    www.aol.com/news/us-power-deals-down-36...

    The value of U.S. power and utilities deals fell over the last year to $27.8 billion, down by 36% from 2023, as political uncertainty ahead of the Nov. 5 presidential election slowed transactions ...