LP Gas bottle specifications
Submitted: Thursday, Aug 19, 2010 at 17:35
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Cruisin-Oz
I am curious to find out what the Surface Coating Identification Mark number that appears on the bottle means? I have distrust regarding doing the swap over when the bottle is empty, as I believe there are different quality gas bottle manufacturing and the details vary on them. eg. date, amount of gas stored and the SCIM. which you need to check thoroughly due to some dodgy/misleading practices.
My current bottle has the no.2 which I was told means it is suitable for full weather exposure.
Cannot find a gas supplier or website that seems to know anything about this number, or 1,3 and 4 that may also be used depending on coating type.
Can anyone out there supply me with any helpful details?
Oh, will consider with caution a swap when my bottle date is almost up or purchasing a stainless steel type which I have heard is far lighter, longer lasting but more $$. Again, anyone have any clues about this?
In anticipation Reg
Reply By: Motherhen - Thursday, Aug 19, 2010 at 18:32
Thursday, Aug 19, 2010 at 18:32
Hi Reg
As i understand it, the coating index is as follows:
1 Hot Dip Galvanising
2 Abrasive blasted + inorganic zinc rich coating + organic zinc rich coating.
3 Sprayed Zinc Coating
4 Red oxide or polyester powder coat.
The numbers refer to the rust-proofing treatment of the steel, not the thickness of the steel which should be to the same standard.
Stainless steel is of course different again.
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Reply By: Bushtrek - Thursday, Aug 19, 2010 at 18:44
Thursday, Aug 19, 2010 at 18:44
Reg,
Definitions here:
#1 cylinders - galvanised steel. Considered the premium quality surface finish.
#2 cylinders - steel with a polyester epoxy coating, usually powder coated. Very robust.
#3 cylinders - steel treated with a zinc rich paint and finishing coats.
#4 cylinders - steel painted conventionally using approved metal primer and finishing coats. A #4 cylinder should remain out of the weather.
Cheers
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Follow Up By: racinrob - Thursday, Aug 19, 2010 at 19:54
Thursday, Aug 19, 2010 at 19:54
I went to a seminar years ago on LPG which included the grades of bottles and is normal I have forgotten 90% of what we were told however I do remember that what Bushtrek says is correct. In addition we were told that # 4 were not suitable for putting on a caravan A frame.
What annoys me now is that most times you swap a LPG bottle you get an out of date #4.
Rob.
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