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  2. Basic sediment and water - Wikipedia

    en.wikipedia.org/wiki/Basic_sediment_and_water

    All unrefined crude oil has some water entrained within it. During transportation by ship, separation occurs naturally and water collects at the base of the tank below the oil, this is known as free water (FW). [4] Sales contracts for crude oil will typically specify the BS&W and FW to ensure the cargo meets quality standards.

  3. Dipstick - Wikipedia

    en.wikipedia.org/wiki/Dipstick

    Using a dipstick to measure the amount of fuel remaining in a tank The lower end of an oil dipstick with markings for minimum and maximum oil levels. Dipsticks can also be used to measure the quantity of liquid in an otherwise inaccessible space, by inserting and removing the stick and then checking the extent of it covered by the liquid.

  4. Instrumentation in petrochemical industries - Wikipedia

    en.wikipedia.org/wiki/Instrumentation_in...

    Pressure in blanketed tanks is maintained by self actuating pressure control valves (PCVs). As liquid is withdrawn from the tank the pressure in the gas space falls. The blanket gas supply valve opens to maintain the pressure. As the tank fills with liquid the pressure rises and a vent gas valve open to vent gas to atmosphere or a vent system. [11]

  5. Butterworth cover - Wikipedia

    en.wikipedia.org/wiki/Butterworth_Cover

    Butterworth hatches are not the main access hatches, but are the servicing hatches, and are generally closed with a metal cover plate with a gasket that is fastened to the deck by a number of bolts which stick up from the deck. Holes on the edges of the plate fit over these bolts and the cover is fastened down with nuts or dogs.

  6. Fuel gauge - Wikipedia

    en.wikipedia.org/wiki/Fuel_gauge

    When the tank is empty and the least current is flowing, the needle points to "E" indicating an empty tank; some vehicles use the indicators "1" (for full) and "0" (for empty) or "R" (for reserve) instead. [4] The digital fuel gauge in a 2018 Mazda 3 showing a nearly-empty tank along with a distance to empty display.

  7. Fuel bladder - Wikipedia

    en.wikipedia.org/wiki/Fuel_bladder

    Standard tanks are designed for land based use and operations, but can be used in marine settings and in aviation given proper support. Fuel bladders are also commonly used in oil spill recovery operations. [2] High end fuel bladders offer a high degree of protection of the stored liquids, ensuring the contents never come in contact with air.

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Heating oil - Wikipedia

    en.wikipedia.org/wiki/Heating_oil

    Heating oil storage in the United Kingdom is governed by regulations that ensure the safe installation and usage of oil storage tanks. [9] It is a criminal offence to keep a tank that violates these regulations, and the owners are liable for fines, penalties and any costs incurred as a result of cleaning up oil spills.