How petrol pumps know when to turn themselves off

21 thoughts on “How petrol pumps know when to turn themselves off”

• If I've set things up right, the title of this video should say "gas" for US people, and "petrol" for UK people! If you're in one of those countries, can you confirm?

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• Thanks for explanation! I'm 50 years old and always wondered how these work! Great explanation

• I remember using a pump at a local gas station, and the nozzle didnt stop when the tank was full. I was watching it as i always do, so it didnt stay like that long. I told the cashier inside about it, as someone unsuspecting might not watch as closely as i do and flow gas everywhere. He quipped "Its not required to work. You are supposed to observe it at all times" I was like, ok, you are gonna get some mad people if it isnt fixed.

• Roller locked like an HK MP5.

• El doblaje está feo. Interesante video preferiría escucharlo en audio original

• I really appreciate your video, it's really good. Since i was a child i remember to asked to my father how the "gas pump" stop automatically, but my father is a civil engineer, and he thougth it was a "gas sensor" (the vapors of gasoline)… Haha. Thanks from México!.

• admiro la afable dedicacion de intentar enseñar algo tan complicado

• one time I had a gas pump repeatedly shut itself off even when my tank was near empty. I was getting really frustrated so I moved to a different pump after trying like 4 times. It worked perfectly.

  Now I realize the tube was probably clogged by debris or intentionally by some vandal. great video!!

• Great video! Thanks for the insight.

• Gracias, una duda que tenia también desde hace rato….

• Excellent Mechanism and well explained

• Many thanks. Really interesting and well explained!

• What an excellent explanation, for such a smart design!! Thank you so much!

• Well explained, everything you hear & feel while pumping fuel was nicely detailed.

• Excellent explanation. Just last week I experienced a gas pump that failed to automatically click into the off position resulting in a minor overflow and spill. The truck in front of me at the pump was taking an abnormally long time to fill. When I pulled into the pumps for my turn the result was the same. It was very slow. As the tank filled up it did not shut off and ended up spilling down the side of my car. I spoke with the station attendant and she said the low pressure at the pumps was due to filters in the pump that needed to be replaced and as it was a holiday weekend there was no one available to do it. Thus the low pressure coming out of the pump must not have been enough to trigger the shutoff. Enjoy your videos. Cheers from Canada (PS the title reads "How petrol pumps know…")

• OMG …. This us so amazing to see ….your hard work. ..wow mych appreciate … M gonna subscribe yoy now. … Thanks for this video …. …bro …. Amazing tool of engineering made by engineers

• When the guy working there figures you got enough.

• Muy bien ahora se como robar gasolina

• good explanation

• Das Video hätte echt gut werden können, wenn du ncihtdiese ganezn unnötigen Modelle gebbaut hättest, anderen du es erklären willst, statt am Objekt selbst.

• i'm glad i stumbled on to this video, not long ago i aksed this question to the lady at the gas station and she couldnt give me a straight answer, i kept wondering without a conclusion until today

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