The little lady and I were talking tonight about gas cylindars in caravans...as you do. She reckons that the gas pipe is made to screw in to the cylindar back to front and to be unscrewed back to front just to wind up folks new to caravanning who will spend all night trying to get the gas on.
Why is it back to front? Would it make any difference if it screwed in the right way? It would still be screwed in.
Phil
------------- If you're not on a fell your wasting your feet and for 2014 it's.......Feb Castleton Mar North Yors Moors; Apr Sutton on Sea; May Thirsk; Jun Clapham/Riverside (Lakes); July Wharfedale; August Crakehall; Sept Knaresborough; Oct Wirral Park/Clitheroe
Quote: Originally posted by cwdc56768 on 04/2/2011
The little lady and I were talking tonight about gas cylindars in caravans...as you do.
... and why wouldn't you Phil
My understanding regarding the thread being left handed, is one of safety. Different cylinders use different fittings (dependant on the cylinders purpose) to ensure there's no chance of inadvertently connecting the wrong type of gas, for example.
Left hand fittings are identified by the presence of a line inscribed round the circumference of the locknut.
think what she means is the fitting on the red bottle regulator is a left hand fitting and screwed the opposite way to normal. butane is a clip on fitting.
------------- the only silly question is the one you do not ask.
Like G7ACU, I'd always thought it was intended to improve safety - preventing users from making up their own connections from plumbing fittings etc., but in one way I think its potentially more dangerous; imagine an inexperienced caravanner detecting a leak - a natural reaction would be to turn the connecting nut clockwise, with possibly catastrophic results!
imho the greatest danger is the strength required to fit it correctly and unless this done it can leak gas.i know the design has been about for many years but this does not make it good one.not every one has the strength to remove the regulator or refit it.plus it is done in a confined space of the collar.the clip on butane type is much safer to use.caravan lockers are getting smaller too.
------------- the only silly question is the one you do not ask.
Tentz has hit the nail on the head, all flammable are LH, non flammable RH.
Particularly important on e.g. oxy acetalene welding gear where you have 2 connections of the same size, and 2 bottles. The LH thread for flammable in theory makes it idiot proof.
PS I havent posted before, I am just up the coast from you Phil at SH and use the same storage as you do ! ( Ive been following the forum for a while ! )
SH? Up the coast? Must be so small a town I missed it!! SH?
Phil
------------- If you're not on a fell your wasting your feet and for 2014 it's.......Feb Castleton Mar North Yors Moors; Apr Sutton on Sea; May Thirsk; Jun Clapham/Riverside (Lakes); July Wharfedale; August Crakehall; Sept Knaresborough; Oct Wirral Park/Clitheroe
Fishing Boat registrations! Must get round the harbour more often!!!
Welcome to the site. Fair trek down this way to pick your van up but then i suppose from up there you may have to come this way to avoid Sutton Bank when heading west.
Thanls got all your postings on the screw issue. Always useful to have a store of information to amaze folk with
Phil
------------- If you're not on a fell your wasting your feet and for 2014 it's.......Feb Castleton Mar North Yors Moors; Apr Sutton on Sea; May Thirsk; Jun Clapham/Riverside (Lakes); July Wharfedale; August Crakehall; Sept Knaresborough; Oct Wirral Park/Clitheroe
Quote: Originally posted by Tentz on 04/2/2011
Lefthand thread for flammable gases, ie propane/butane. Righthand thread for non flammable gases, ie helium, oxygen, etc.
Technically speaking helium and oxygen should not be grouped together. Helium is inert, but oxygen is an oxidiser and nothing burns without oxygen. Maybe we need a 3rd type of thread.
This is all to do with safety. The original cylinders used were oxygen (which has a clockwise thread) All other cylinders were made with an anticlockwise thread to avoid the possibilty of medical staff connecting the wrong cylinder to patients oxygen supply
------------- hawk
"Laugh and the world laughs with you, snore and you sleep alone"
I have the body of a greek god - its in my freezer
All flammable gases in uk have left hand thread non flammable such as oxygen, which in itself does not burn but assists combustion have right hand threads. ex fire officer
Quote: Originally posted by michael on 05/2/2011
imho the greatest danger is the strength required to fit it correctly and unless this done it can leak gas.i know the design has been about for many years but this does not make it good one.not every one has the strength to remove the regulator or refit it.plus it is done in a confined space of the collar.the clip on butane type is much safer to use.caravan lockers are getting smaller too.
Michael, I know exactly what you mean! I changed to propane and couldn't believe how difficult it was to connect the regulator, I eventually managed it but it took ages and lots of turns before it was on tight. I also have a rubber glove next to the darned thing to turn the gas on and off. I'm dreading it running out as I know I will struggle with that regulator again when it does. Thinking of getting butane for the summer, although I do like the propane lite stuff, simply because I'm puny!
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Topic: Its a wind up
