Talk:Gas pump

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[edit] lever

what do you call those levers u can push where the gas will pump itself? im trying to figure out why canada doesnt have it and why usa has it

gas pump itself? What do you mean? Aaron Lawrence 11:33, 13 October 2006 (UTC)
I think the question may refer to "self-service gas dispensers" at filling stations.
Atlant 13:25, 13 October 2006 (UTC)

[edit] Flow rates?

Does anybody know of any sources for data on flow rates, i.e. how many gallons per minute a typical gas pump supplies? -- RoySmith (talk) 13:49, 27 May 2007 (UTC)

I don't know citable sources, but the most common standard I know of is 40L (10.5G) per minute in most places. That's for normal fuel (petrol/gas); for diesel, 80L (21) per minute is common as this is often used to fill trucks. Of course in the US it is probably a round number like 10G per minute - I don't know whether pump manufacturers actually change it outside the US or just call it a different number. It's approximate anyway.Aaron Lawrence 09:31, 28 May 2007 (UTC)


[edit] Hoses

Does anybody know the standard hose diameter installed on fuel pumps in the U.S.? Also I'm curious about the length of hose from the handle back into the pump. I'm looking to determine the volume of one grade of gasoline left in the hose at the one hose style fuel pump.

Thank you, Cmittle 04:56, 18 September 2007 (UTC)

It varies based on the hose design. As you probably realize, there are often two coaxial hoses in the assembly, one delivering the liquid gasoline and the other removing the gasoline vapors. (I've always assumed the inner line is the liquid delivery line, but I don't know this for sure.) Looking at the OPW web site, it looks like 3/4" and 1" are the two standard hose I.D.s. Ahh, here's an interesting PDF that also mentions 5/8" I.D.
Atlant 23:16, 18 September 2007 (UTC)
Hm, but is vapor recovery used everywhere? I'm thinking not... Aaron Lawrence (talk) 11:18, 15 December 2007 (UTC)
No, it's not yet mandated in certain rural areas AFAIK.
Atlant (talk) 02:44, 16 December 2007 (UTC)
OK, but I was meaning other countries :) Aaron Lawrence (talk) 12:37, 20 December 2007 (UTC)
I'm very interested in how much fuel remains in the hose because I ride a motorcycle that must have high octane gasoline.

So... I assume that if we could figure out (1) where the mixing valve is (inside the pump or the nozzle?) (2) length & diameter from the valve to the hose and (3) length & diameter of the hose, we could figure this out. Anybody know? Since I find most times that the last fill was economy and a typical fill-up for me is 3 gallons, I suspect that my bike is often not getting the octane it needs. —Preceding unsigned comment added by U1108 (talk • contribs) 13:24, 13 February 2008 (UTC)

The mixing valve is definitely in the body of the dispenser so the entire hose contained volume is "the old grade" of gasoline.
Here's a PDF manual for a typical gasoline dispenser PDF.
Atlant (talk) 02:21, 23 February 2008 (UTC)

[edit] Laws

I hear in some states that the driver isnt allowed to pump the gas themself, it has to be a station attendent, by law. anyone care to add this to the article or something? —Preceding unsigned comment added by 71.104.4.252 (talk) 03:28, 18 February 2008 (UTC)

That's more about the gas stations than the pumps themselves, so I don't think it needs to be mentioned here. It is already mentioned at that article: Filling_station#Full_service_vs._self_service --Icarus (Hi!) 04:05, 18 February 2008 (UTC)

[edit] Automatic shut-off

Some gasoline pumps have a mechanism that would automatically shut off the pump when the vehicle's gas tank is full. My question is, how does the pump know when my car's tank is full? Supposedly my car would have an overflow safety valve or some sort but how does the pump know when to stop pumping? — Kjammer  ⌂ 08:30, 22 February 2008 (UTC)

This may help ypu:
Atlant (talk) 02:14, 23 February 2008 (UTC)
Oh, I see. Maybe something like this should be added into the article, or should we make a separate one about the nozzles for the pumps? — Kjammer  ⌂ 05:52, 23 February 2008 (UTC)