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2nd Sep 2021, 07:58 AM #16
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2nd Sep 2021, 08:20 AM #17Most Valued Member
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As mentioned above, mercaptan is toxic (according to MSDS) but certainly not in the concentrations used as an odourant in lpg.
Our noses are so sensitive to this stuff. We have a multi gas analyser at work that we use for gas leaks etc. and there are instances where we have responded to a nat. Gas leak which you can smell, but it's such a small leak that it does not register on our LEL gas detector. It does on our VOC (volatile organic compounds) sensor but only because it measures in PPM and not % LEL
As for labelling the vessel to show it does not contain LPG in case of fire, its neither here nor there.
If your garage/shed is on fire, any pressure vessel represents a hazard to fire crews and as such they should all be treated the same anyway.
Also I've been to many shed fires over the years, been privy to many fire investigations from fire, police and insurance companies and TBH they could care less about an LPG cylinder used as a compressor receiver. Half of them wouldn't even know anyway!
Illegal wiring and/or criminal activities that lead to fires are what typically rouse interest.
Lpg CYLINDERS are a great cheap source of material for many ace projects imo!
Especially in this time of endless freakin lockdowns!
Use one today!!
Simon
Sent from my SM-G970F using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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2nd Sep 2021, 10:31 AM #18Most Valued Member
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- Nov 2007
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2nd Sep 2021, 02:12 PM #19New Member
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- Oct 2014
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- queensland
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- 5
I have read on a few welding forum’s that bleach helps remove the mercaptan smell.
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2nd Sep 2021, 06:54 PM #20
Charged from an air compressor for portable air.
Never had a problem with any smell, was washed out multiple times with detergent and hot water and left out open in the hot sun.
IMG_0367.jpg
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2nd Sep 2021, 07:00 PM #21
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2nd Sep 2021, 07:39 PM #22
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2nd Sep 2021, 08:19 PM #23
Ratty 05/2004 -05/07/2010 COOPER 01/08/1998-31/01/2012
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3rd Sep 2021, 07:32 AM #24Most Valued Member
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- Aug 2011
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- Melbourne
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Some time back I acquired a nice Clisby 12 series compressor that I tarted up.
The reciever was a bit iffy so I washed it out with gravel to loosen up the scale and then to add "some" level of confidence I hydrostatically tested it by filling with water and pressurising with my pressure washer.
Simon
Sent from my SM-G970F using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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3rd Sep 2021, 10:59 AM #25Diamond Member
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- Oct 2008
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- N.W.Tasmania
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Rather than vinegar, I would try using a strong alkali, caustic soda or sodium hydroxide more correctly should turn any oil into a water soluble soap which should rinse out with warm water. I doubt that the inside would be galvanised, but if it is then the sodium hydroxide will remove the zinc and produce some hydrogen, so be aware of that and you should be ok. Detergent for dishwashing machines might also be an alternative to sodium hydroxide, and perhaps a bit safer or more tolerant of ignorance and stupidity, but IMO sodium hydroxide has been used for centuries for cleaning drains, making soap and many other industrial as well as domestic purposes with very few ill effects providing basic precautions are taken, – rubber gloves, suitable eye protection, some clean water for flushing eyes or skin and perhaps vinegar for neutralising used solution etc. Those Clisby compressors are great and still being made and supported by the manufacturer in Adelaide, good luck with the project
Last edited by Ropetangler; 3rd Sep 2021 at 03:53 PM. Reason: correct the spell checker!
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5th Sep 2021, 11:05 AM #26Diamond Member
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- Feb 2013
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- Laidley, SE Qld
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I've had an air compressor with one of those Clisby twin cylinder pumps on it for nearly 35 years and its still going strong.
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6th Sep 2021, 06:41 PM #27Most Valued Member
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- Aug 2008
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- Charlestown NSW
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9th Sep 2021, 07:37 AM #28Most Valued Member
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- Aug 2011
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- Melbourne
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I have a petrol powered pressure washer. So I ran it at just above idle, so it still achieves the pressure but at a lower flow rate. This made it easier to control the flow to achieve the end test pressure.
I then left it at test pressure for about 5 minutes to see if there were any leaks.
Simon
Sent from my SM-G970F using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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25th Sep 2021, 10:41 AM #29
I tried to take the valve off but I can’t budge it so will have to leave it.
I noticed that this is extremely easy to press down don’t know if this is normal or if it’s bugged.
Sent from my iPhone using Tapatalk
Ratty 05/2004 -05/07/2010 COOPER 01/08/1998-31/01/2012
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25th Sep 2021, 11:02 AM #30Senior Member
- Join Date
- Apr 2018
- Location
- Perth
- Posts
- 168
Is that the fill point for the cylinder, the ball moves inward to let liquid LPG in. Forklift cylinders and vehicle lpg cylinders have the same fitting.
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