Low pressure from Propane?

[Refueler]

[ QUOTE ]
Surely if you buy a bottle which is clearly marked "Propane", then that is what you should get. Propane is a gas C3H8, and isn't some hotch-potch dreamed up by blenders. Quite difficult for the average consumer to know what they are being given.

[/ QUOTE ]

I'm not sure on the actual legal standing on this. All I know is we blend Propane / Butane mixes for shipping out to various markets.
I would assume if ballon states Propane only - then you should get a high % or near all Propane fuel. Similar if ballon states Butane only - it should be high% or near all Butane.

I think without being able to check - that it may come about that people assume a blue ballon to be ALL Butane and a Red ballon to be ALL propane.
I remember the days when they had opposite threads depending on whether Butane or Propane - but that seems to have died away now...... particularly with the advent of dual use regulators.

From a blending pov ... a mix is better as it gives a more stable output in the changeover temperature ranges and gives more CV ... but that's my view.

I have no choice but go with high % propane over here - eg this coming week is forecast -15 down to -20C.

 

[VicS]

[ QUOTE ]
Surely if you buy a bottle which is clearly marked "Propane", then that is what you should get

[/ QUOTE ] That's what I thought but a while back I was corrected on that point on these forums.

I was pointed in the direction of some specs that indicated the composition but it does seems to be info not widely publicised. Sorry cannot remember the details now.

Only a little difference in Cal Value on a weight basis between propane and butane ( although there is of course on a volume basis with butane giving more heat per metre cubed).

 

[VicS]

[ QUOTE ]
I remember the days when they had opposite threads depending on whether Butane or Propane - but that seems to have died away now...... particularly with the advent of dual use regulators

[/ QUOTE ] I think they still are different handed threads and also of different sexes, except of course where snap on regulators are used on butane.

You still use the same regulator for both gases (30mb?), but it has to be bulkhead mounted, and have to change the connecting hose according to the gas in use.
At least that the situation with Calor propane and the smallest Calor butane bottles I think you will find.

 

[graham]

Sometimes the regulator sticks in cold weather try gently tapping it with a small hammer.Probably a sign that a new regulator is needed.

 

[Refueler]

[ QUOTE ]
[ QUOTE ]
I remember the days when they had opposite threads depending on whether Butane or Propane - but that seems to have died away now...... particularly with the advent of dual use regulators

[/ QUOTE ] I think they still are different handed threads and also of different sexes, except of course where snap on regulators are used on butane.

You still use the same regulator for both gases (30mb?), but it has to be bulkhead mounted, and have to change the connecting hose according to the gas in use.
At least that the situation with Calor propane and the smallest Calor butane bottles I think you will find.

[/ QUOTE ]

Out here you can still use bottle mounted regulators and they are not different handed threads as it's now difficult to find a single type unit.
My Mobile in UK is with bottle mounted regulator as well on a 25KG ballon. But that is a Propane only regulator.
My boat still uses a Butane only bottle mounted regulator - and as that's not used in winter - I still fill my ballon with Butane ! FOC of course.

 

[VicS]

[ QUOTE ]
Out here you can still use bottle mounted regulators

[/ QUOTE ] AFAIK the bottle mounted regulators are still availble here too but then they are either for propane or for butane because they have to match the bottles.

 

[Orla]

That seems to be exactly what the problem is.
Although it is a new regulator, when the pressure goes I heat the regulator with the hair dryer for a couple if mins and all is back to normal.
I am looking into other regulators.