with the 15kg bottle standing upright, on the floor? next to the 907(on scales) also on the floor?
is it not the liquid at the bottom that needs transferring?
i was assuming just gas vapour at the top of the 15kg bottle.
obviously not done it before so just curious.
@Dellmassive A mate of mine who is as dodgy as anything reckons put one bottle in the freezer to cool it and heat the other up to help transfer of gas but this may all be bo***ks to put people off trying it at home
looking at the new 907 from yesterday. . .
it shows 2023/04 - assumed production date, for the 10yr life cycle.
po30Bar - pressure?
6.02L - volume?
the the next bit shows:
TARE: 3.3Kg - Empty container weight.
it also mentions UN1965 Butane
and assuming this next one details the max fill level?
A01 2.94Kg.
++++++++++++++
a nice COSH data safety sheet here:
...
If you are going to refill I'd advise not trying to reach the same fill as a proper refill, give yourself some margin, after all you can always top it up.
Also keep in mind while transferring liquid gas that the pipes, valves and seals between the two tanks were never designed or rated for it, just the gas phase. You shouldn't get chilling due to gas evaporation as nothing should be leaking but keep on eye on if you do - chilled liquid gas is going to shrink or harden the seals and make your life difficult.
I have to transfer gas from cartridge to the traction engines onboard gas tank over a tiny Ronson filler valve (as that's regarded as "safe" for the public to do) and that's no fun at all. Seriously considering a direct connection but then I'd have to have it done by someone officially competent to comply with the public liability insurance if I use it in public.
Also keep in mind while transferring liquid gas that the pipes, valves and seals between the two tanks were never designed or rated for it, just the gas phase. You shouldn't get chilling due to gas evaporation as nothing should be leaking but keep on eye on if you do - chilled liquid gas is going to shrink or harden the seals and make your life difficult.
I have to transfer gas from cartridge to the traction engines onboard gas tank over a tiny Ronson filler valve (as that's regarded as "safe" for the public to do) and that's no fun at all. Seriously considering a direct connection but then I'd have to have it done by someone officially competent to comply with the public liability insurance if I use it in public.
yeh, I've done that with the C500 gas cans..
you need one of these dodgy as you like refill gas can adapters. . . - 2 Pc Gas Tank Fill Can Inter-fill Propane Refill Adapter Connector | eBay
then old empty can at the bottom,
can with gas in on top,
then open the valve.
++++++
i bought this one too - https://amzn.to/3y9SInb
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i had mixed results to be fair. .
that's when i come across the whole freeze the empty can and warm up the top can. . .
+++++
but my issue was that i was suffering from low gas pressure when the C500 cans run low. . (can freeze under use)
so i had a collection of 10 old cans with 10-15% in them . . that had super low pressure
i naively assumed i could decant ass said 15% cans into one full can.
well it didn't work. - there just wasnt enough pressure left in the cans.
++++++
at that point i moved over to the twin C500 gas adapter from CADAC, which was great. . . - https://amzn.to/4bw0kyP
but still run into the issue of CAN FREEZE low pressure . . . which was pain with the wife moaning about how the cooker was broken and why was it taking half an hour to boil the kettle.
..............
anyway with trial and error i solved the whole gas can freeze issue,
by dropping the can / twin can assembly in the washing up bowl of warm water on the floor . . .
basically the cans freeze up because the surrounding air cant add ambient heat quick enough ( or remove the cold quick enough)
so by dropping the can/s in warm water, the cold is removed from the cans far quicker than the air. . .
google says that water is 50-1000% better at transferring heat/cold that air - so that explains that.
basically if your getting can freeze, just drop the wan into water, or wrap a warm soaked wet towel round them. . .
+++++++++++++
oh and fwiw. . .
i also bought these before. . . - https://amzn.to/3QxE1AA
stupidly assuming they would help keep the cans warm from the cold temps. . .
Doh. . . .
nope, they made matters even worse,
as they are neoprene and insulate the can from the outside world . . . which means the cans cant loose there cold and just freeze up even quicker.
so these are good for can storage - but need to be removed when the can is in use, or expect low pressure.
+++++++++++
Agreed on the fill level. . .
@Alied implied above about 2.0-2.5Kg for the propane. . .
but seeing as my 907 cans only mention Butane, - i suppose ill have to stick with that.
the can shows 2.94Kg max fill.
so ill assume 2.0-2.5Kg will be ok for a re-fill level?
Result. . .
I've still got it - the 15Kg Calor gas bottle.
its on the Gas BBQ, i was running the bottle down to get rid of it as i have a few other Propane bottles. ( Red Regulators )
but its still there. . .so i can start using that, then get a cheap 15KG refill.
to then top up the 907`s.
looks like ill be keeping this Blue bottle after all.
.............
sorted.
off to get those bits for #Team907Refill
++++
I've still got it - the 15Kg Calor gas bottle.
its on the Gas BBQ, i was running the bottle down to get rid of it as i have a few other Propane bottles. ( Red Regulators )
but its still there. . .so i can start using that, then get a cheap 15KG refill.
to then top up the 907`s.
looks like ill be keeping this Blue bottle after all.
.............
sorted.
off to get those bits for #Team907Refill
++++
all done, same as listed above.
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just for info . . .
907 being re-filled at a European Petrol station . . (Polish?)
with gas adapter,
using empty weight,
then a fill volume probably equal to the re-fill weight.
then a full re-fill weight check.
+++
nice
+++
907 being re-filled at a European Petrol station . . (Polish?)
with gas adapter,
using empty weight,
then a fill volume probably equal to the re-fill weight.
then a full re-fill weight check.
+++
nice
+++
and for balance - a French RedNeck hack. . .
looks like they had the feed bottle upside down.
....
+++
looks like they had the feed bottle upside down.
....
+++
Watching with interest.
All that electronic stuff @Dellmassive has lying around, what could possibly go wrong?
All that electronic stuff @Dellmassive has lying around, what could possibly go wrong?
I would say 2.93kg of propane in a 907 bottle is asking for trouble. These German refillable 907 bottles are only rated at 2.5kg Aktionsset GARDINGER PROFILL907-Gas Flasche 2,5kg + Umfüllschlauch + , 94,99 €
You can weigh the 907 as it fills with either fishing scales or luggage scales (the type you hang stuff from) just periodically lift the 907 in the air to weigh it.
A garden bench is an ideal place and height for the 15kg cylinder with the 907 lower standing on the floor.
Do not try to fill the 907 up to the max, fill to about 3/4 full.
If they really shotblast and paint every refill it's hard to explain the condition of some cylinders...
Though it could go some way to explain the cost.
Though it could go some way to explain the cost.
They mention the 10year life cycle too.
So assuming they scan the made date and bin off the older ones and reprocess the younger ones.
So assuming they scan the made date and bin off the older ones and reprocess the younger ones.
So are we putting the 15kg bottle upside down so the liquid flows out? - as some of those videos show.
Or stand the bottle upright? One the park bench?.... With the 907 lower down on the scales etc.
....
I just can't get my head around having the larger bottle standing upright...? Having gas vapor at the top of the bottle..... And liquid at the bottom of the bottle.
Make sense to have it upside down so that the gas liquid flows to the 907 first before the pressure equalizes.
...
But I'm a gas novice..... So I have no idea.
