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http://www.nrw.qld.gov.au/mines/petroleum/pdf/safety_alert030.pdf>
LP Gas Cylinder Alert
ATTENTION: Cylinder refillers
What happened?
Some 9kg LPG cylinders manufactured in China
have been found to have a faulty valve. There have
been a number of reported cases in Australia of the
securing gland nut on these valves not being
correctly tightened and allowing the contents of the
cylinder to escape. In some cases this has resulted
in a serious fire and/or injury.
Key Issues
The pictures show the nut which, having a left-hand
thread, can be undone during the process of
manually turning off the cylinder valve. This may
cause the valve assembly to loosen and separate,
allowing the immediate release of the cylinder
contents under pressure with no real way of stopping
the flow once started.