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2. Flashback arrestor - Wikipedia

   en.wikipedia.org/wiki/Flashback_arrestor

   The flashback arrestors are suitable for most technical gases (fuel gases) such as acetylene, hydrogen, methane, propane, propylene and butane as well as oxygen and compressed air. Flashback arrestors have to be tested for gas non-return, for tightness and for gas flow by a qualified person depending on the country specific regulations.

3. Petcock - Wikipedia

   en.wikipedia.org/wiki/Petcock

   Fuel petcock on a 1978 Yamaha XS400. Most older motorcycles have a three-position fuel petcock valve (known as a "petrol tap" in the UK) mounted on or nearby the fuel tank to control the supply of gasoline: on, off, and reserve. The reserve position accesses the bottom portion of the fuel tank.

4. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   The sheet has a solid end and a flow-through end; sliding it from one position to the other opens or stops the flow. Also called sliding blind valve; Outflow valve: regulates flow and pressure, part of cabin pressurization; Pilot valve: regulates flow or pressure to other valves; Petcock, a small shut-off valve

5. Shutdown valve - Wikipedia

   en.wikipedia.org/wiki/Shutdown_valve

   A shutdown valve (also referred to as SDV or emergency shutdown valve, ESV, ESD, or ESDV; or safety shutoff valve) is an actuated valve designed to stop the flow of a hazardous fluid upon the detection of a dangerous event. This provides protection against possible harm to people, equipment or the environment.

6. Gasoline pump - Wikipedia

   en.wikipedia.org/wiki/Gasoline_pump

   [26] This mechanism eventually developed into the modern gasoline pump cut-off valve. [27] Most modern pumps have an automatic cut-off feature that stops the flow when the tank is full. This is done with an auxiliary sensing tube running from just inside the mouth of the nozzle to a Venturi pump in the pump handle. A mechanical valve in the ...

7. AOL Mail

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