On Fri, 05 Apr 2013 11:16:44 -0400, Randy333
wrote:

On Fri, 05 Apr 2013 05:39:38 -0500, "Pete C."
wrote:


Ignoramus7029 wrote:

On 2013-04-05, Steve W. wrote:
Ignoramus7029 wrote:
Someone is offering me a couple of units such as this:

http://igor.chudov.com/tmp/Retail-Gas-Station.jpg

That would be for parting out.

I am wondering what is inside of those? Pumps? Counters? Anything else?

Usually a pump with dual heads (2 pumps if it also has a diesel nozzle)
Metering unit which controls how much low grade to mix with the high grade for
the blends. Set of flow meters Display, selection, control boards, receipt printer and
the credit card reader head.



That's great to know! Thanks! Those pumps, are they diaphragm pumps or
something else?

i

There are no pumps in those units, modern gas stations use submersible
turbine pumps similar to well pumps. All that is in those dispenser
units is a set of metering units, possibly some filters and a PC with
card and prox readers. I'm afraid scrap wise the stainless steel cabinet
it's all in is probably the most valuable part.

Take a look at this thread for more info than you ever wanted on fuel
stations:

http://www.ar15.com/forums/t_10_17/6..._21 _pg7.html


Not to sure about that, around here you can hear the pumps pumping.
But even if modern pumps use STP's, if those are older pumps they
will have the pump inside them.

You may be hearing the flowmeter turning. On the older gas pumps I'm
familiar with the flowmeter was essentially a positive displacement
motor driving the tabulating mechanism. It appears that the pump on
the page cited has a similar arrangement except the "motor" (the
silver device in the second pic) drives an encoder instead of a
mechanical display as in an old pump.

--
Ned Simmons