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  2. Chest tube - Wikipedia

    en.wikipedia.org/wiki/Chest_tube

    The second chamber functions as a "water seal", which acts as a one way valve allowing gas to escape, but not reenter the chest. Air bubbling through the water seal chamber is usual when the patient coughs or exhales but may indicate, if continual, a pleural or system leak that should be evaluated critically.

  3. Trap (plumbing) - Wikipedia

    en.wikipedia.org/wiki/Trap_(plumbing)

    Maintaining the water seal is critical to trap operation; traps might dry out, and poor venting can suction or blow water out of the traps. This is usually avoided by venting the drain pipes downstream of the trap; by being vented to the atmosphere outside the building, the drain lines never operate at a pressure much higher or lower than ...

  4. Stuffing box - Wikipedia

    en.wikipedia.org/wiki/Stuffing_box

    A sound stuffing box installation is critical to safety because failure can admit a catastrophic volume of water into the boat. In a common type of stuffing box, rings of braided fiber, known as shaft packing or gland packing, form a seal between the shaft and the stuffing box.

  5. AutoAnalyzer - Wikipedia

    en.wikipedia.org/wiki/AutoAnalyzer

    The AutoAnalyzer is an automated analyzer using a flow technique called continuous flow analysis (CFA), or more correctly segmented flow analysis (SFA) first made by the Technicon Corporation. The instrument was invented in 1957 by Leonard Skeggs, PhD and commercialized by Jack Whitehead's Technicon Corporation.

  6. Water seal - Wikipedia

    en.wikipedia.org/wiki/Water_seal

    Water seal may refer to: Liquid trap seal in plumbing traps; Underwater seal in pleural drainage apparatuses; Waterproofing This page was last edited on ...

  7. Degassing - Wikipedia

    en.wikipedia.org/wiki/Degassing

    New applications are in inkjet systems where gas in the ink forms bubbles that degrade print quality, a degassing unit is placed prior to the print head to remove gas and prevent the buildup of bubbles keeping good jetting and print quality. The above three methods are used to remove all dissolved gases. Below are methods for more selective ...

  8. Hydrostatic seal - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_seal

    The second hydrostatic seal was an attempt to resolve first generation hydrostatic seal problems: erosion of seals, high pressure build up, and stagnant fluids. Second generation hydrostatic seals had a redesigned seal face; new face control grooves were added to help stabilize the seals while under extreme conditions.

  9. Suction caisson - Wikipedia

    en.wikipedia.org/wiki/Suction_caisson

    A suction caisson can effectively be described as an inverted bucket that is embedded in the marine sediment.Attachment to the sea bed is achieved either through pushing or by creating a negative pressure inside the caisson skirt by pumping water out of the caisson; both of these techniques have the effect of securing the caisson into the sea bed.