Re: Home DIY gasoline station

W. Green wrote:

The problem I'm having with fuel filters is they all seem to be Army/Navy 6
sizes, like this male AN6 fuel filter is. https://amazon.com/dp/B0DWFDF7VK/

If you are sure the fuel is clean and it won't sit for long then skip the filter.

I can get an AN6 to NPT fitting but they all seem to go to 3/8-inch NPT.
https://www.amazon.com/dp/B0F47FFY13
https://www.amazon.com/dp/B0DHXVW4F5

I was thinking about a 3/4-inch NPT fuel transfer hose because the
auto-shutoff nozzle is 3/4-inch NPT but maybe I'll go for 3/8-inch fuel
transfer hose (if they make it) and just downsize from 3/8-inch to 3/4-inch
at the fuel nozzle.

The ~120 GPH spec pump is made in China.  Realistically I would expect way less than 60 GPH at the nozzle.  There are no real specs listed on the ad blurb.  No pressure data.  The pump weighs 0.6 kg, about 1 pound, so don't expect too much.
3/8" or 1/2" hose would work for your system.

So what do you think of this equipment list (given I already received much
of the parts below but not yet the fuel filter & fuel transfer hose).
3/4-inch NPT Automatic Fuel Nozzle <https://amazon.com/dp/B0DZCM1HYH/>

The nozzle looks good.

3/4-inch 360-degree fuel hose swivel <https://amazon.com/dp/B0F26DTBVC/>

The swivel fits the nozzle.  3/4 noz = 3/4 swivel.  Real fuel hose tends to be stiff.  Get the real swivel if using real fuel hose.  Vinyl hose will not be strong enough to spin the swivel and you fuelers will need to undo the kinks manually anyways.

1-inch gas flow meter w 3/4" adapter <https://amazon.com/dp/B0F334N1JR/>

A flow meter is not needed unless you are tracking fuel usage.  Each vehicle will need to keep a written log.  The meter could be used for totalized fuel flow but the users will need to be careful not to accidentally reset it.  The meter battery will go dead in a few years or the meter will get damaged or get water into it. They don't last long.
Personally, I would not bother installing one.

  12VDC 2GPM gasoline pump w clamps <https://amazon.com/dp/B0DFCRH64R/>

The pump photo appears to show GHT thread on the pump and GHT to barb adapters.  You will need to use GHT to NPT adapters for real fuel hose.

I'm thinking about getting these parts to add the fuel filter & swivel.
  6AN 30 micron Inline Fuel Filter <https://amazon.com/dp/B0F48286LB/>
  6AN female swivel to 3/8-inch male NPT <https://amazon.com/dp/B0F48286LB/>

Don't bother with the above.

Is 30 micron enough? I suspect the fuel is pretty clean since it comes
right out of the gas pump and it goes into a red plastic gasoline jug.
 Then I probably want a 3/8-18 NPT ten or fifteen foot fuel hose.
 I can find a lot of bare-end 3/8-inch fuel hose but it's really hard to
find anything smaller than 3/4-inch fuel transfer hose that has fittings.
 DO you think vinyl would allow too much static to build up?
I've been using 10 foot 1/2-inch vinyl hose for decades with siphons.
 The advantage of vinyl would be it would be see through.
But the disadvantage might be that it's not conductive.
 What do you think?

Except for the nozzle and swivel the entire system is plastic and non-conductive.
The nozzle will be grounded to the vehicle during use.
The flow rate MAY be too small to generate much static.
You could get wire reinforced fuel 3/8" hose if worried about static and   ground it at the pump end.
Speaking of siphon...  Keep the nozzle above the fuel level when not in use.  If it is below the fuel level and the nozzle leaks then the entire container will siphon out onto the ground (assumes no ball valves in the system and the pump does not have a built in anti-siphon valve).
All nozzles will eventually leak.