In reference to original query........read No 11
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In reference to original query........read No 11
75% correct, if the relief valve can get the excessive pressure off, then only the gas vented thru the valve will burn off & no BLEVE. If the relief valve cannot vent the gas sufficiently ( usually preceded by a shrill whistle - but only if vapour is escaping-) the pressure builds up to a point that the cylinder ruptures ( helped by being heat weakened) and the rush of boiling liquid expands out into the atmosphere & - being superheated & in flames, - immediately explodes. Having one upright on a roof is a waste of time if the vehicle rolls on to its side & catches fire.
So the clever bit would be to place the cylinder so it is upright after an accident:angel:
Cylinders are unlikely to explode unless "blowtorched" by another. It necessarily need not be on fire, but subject to it, to explode.
In my 25 years in the LPG industry, I have only one photograph of a flattened cylinder & that was in an inferno.
Cheers, David
So a 9kg bbq or caravan bottle can be transported in the car. Given that it is the most popular, and domestically the largest size, I wouldn't think we should be rushing to enroll in accreditation courses and buying utes.
Oh, some interesting viewing:
[ame]http://www.youtube.com/watch?v=FQFphkoiq3g[/ame]
So what you are seeing here is gas bottles which were obviously full, getting a bit hot, expanding and then venting gas. After venting the pressure drops and the vent closes.
Providing you are not in the path of the flame this is not dangerous.
This is why when fitting a gas bottle to a caravan the gas bottle vent should be facing away from the caravan, so if a bottle vents and something ignites it it will not burn the van.
In the Utube shown above a BLEVE did not happen.
These are the links to various rules/regulations pertaining to the transport of small L P Gas cylinders in the various states of Australia.
Queensland
[ame]http://mines.industry.qld.gov.au/assets/petroleum-pdf/info_cylindertransport.pdf[/ame]
New South Wales
[ame]http://www.workcover.nsw.gov.au/formspublications/publications/Documents/transporting_of_small_gas_cylinders_fact_sheet_096 6.pdf[/ame]
Victoria
[ame]http://www.vwa.vic.gov.au/__data/assets/pdf_file/0006/22983/Alert-Storinggascylindersinvehicles.pdf[/ame]
Tasmania
WorkSafe Tasmania | Safe transportation of gas cylinders
Northern Territory
[ame]http://www.worksafe.nt.gov.au/NewsRoom/Documents/safe_use_of_liquefied_petroleum_gas_from_cylinders .pdf[/ame]
South Australia
https://www.sa.gov.au/topics/water-e...ittings#title3
Western Australia
Private vehicles - Department of Mines and Petroleum
[ame]http://www.dmp.wa.gov.au/documents/Pamphlets/DGS_P_SAVPickingUpSomeLPGasForYourBarbeque.pdf[/ame]
I will not be offering further comment, apart from recommending that any/all cylinders are transported in an upright position in a position & not inside of a vehicle.
With the upmost respect to all, a properly secured, in date, upright cylinder that is in a car that isn't left in the hot sun all day is perfectly safe. I'm pretty sure that's how most of us here would carry there's. There's always going to be idjits that plonk a full 9kg on the front seats of a boiling hot car.
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If you read the information sheets posted by Collins, they cover the various states where in a vehicle to carry bottles. I stand corrected for W.A & NT but the dangerous goods transport code for the more populated states covers this pretty well & carrying a LPG bottle - any size- in the passenger compartment of a vehicle is against the code - not sure if this constitutes breaking the law though but I know of instances of household insurance claims being rejected or a considerable sum deducted from the claim where breaches of the code have happened e:g having a caravan bottle in a house that burnt down.
Plus, Benji is in Victoria, but maybe I should have spent more time on my reply. It gets pretty confusing as the Worksafe sheet posted for Vic is for trade vehicles, not private vehicles. Worksafe have no jurisdiction over the everyday motorist.
Personally I think the W.A. guidelines are the most practical & would be the way I would want to transport a full cylinder in my Land Rover, but here, I can't.