Gaslow R67 cylinder...no on/off tap?

Discussion in 'Tech/Mech General' started by andrewjw, Mar 6, 2015.

  1. andrewjw

    andrewjw Funster

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    I've spent a fun afternoon installing a single cylinder Gaslow system into my van. It has all gone in very neatly with minimal stress!

    I notice that unlike the "old style" Gaslow cylinders that I had in my previous van the new R67 type cylinder has no on /off tap to isolate the tank when the van isn't being used or for ferry crossings etc.

    The Gaslow website says that the R67 has a built in excess flow valve which will restrict the gas flow if a hose ruptures etc...presumably this makes the on/off tap redundant?

    Any thoughts anyone?
     
  2. scotjimland

    scotjimland Funster Life Member

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    is this the top works of the R67 ?

    [​IMG]
     
  3. iandsm

    iandsm Funster

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    I wonder if you can't turn off the gas you won't be allowed on Eurotunnel. (What does the knurled knob do?
     
  4. andrewjw

    andrewjw Funster

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    Very similar...it certainly has the knurled knob at the bottom of the pic above....just been out to have a look and discover that the knurled knob turns!!

    Presumably this is the on /off isolation control?...doh!!

    Nothing about this on the Gaslow instruction sheet /website ... I'm used to the old style on/off knobs on the top of the cylinder...must be getting old!!
     
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  5. scotjimland

    scotjimland Funster Life Member

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    The Gaslow R67 I believe refers to the R67 regs which I presume it adheres to ..

    Liquefied Petroleum Gas Equipment | UN Regulation No. 67
    you can download the regulations here.. http://www.globalautoregs.com/rules/78

    and there is a definite requirement for a shut-off valve


    download UN R67: Revision 3



    edit..just read your post.. thought that was it
     
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  6. peterc10

    peterc10 Funster

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    That could cause you problems with Eurotunnel, They always check mine to make sure it is off.
     
  7. andrewjw

    andrewjw Funster

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    I think that ScotJimland had solved the problem [thanks!]....

    I sent Gaslow an e mail asking the same question...maybe they should update their website/instruction sheets etc for dimbos like me!:rolleyes:
     
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  8. iandsm

    iandsm Funster

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    So long as they can see you turn the knurled knob, which we now know is the shut off valve you should be fine, I would have thought.
     
    Last edited: Mar 6, 2015
  9. scotjimland

    scotjimland Funster Life Member

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    I agree it's not on the Gaslow technical info.. and not obvious..
    but you couldn't have a gas bottle without an isolation valve.. so it had to be there.. somewhere(y)
     
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  10. iandsm

    iandsm Funster

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    Just thinking to myself, Presumably this new regulation applies to newly purchased and fitted bottles and those of us with existing Gaslow bottles will not be required to change them for new ones. Anyone know?
     
  11. scotjimland

    scotjimland Funster Life Member

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    From what I read, the R67 regulations only apply to LPG propulsion installations, so I wouldn't think there is a requirement to change.?


    Uniform provisions concerning the approval of:
    I. Approval of specific equipment of vehicles of category M and N
    using liquefied petroleum gases in their propulsion system

    II. Approval of vehicles of category M and N fitted with specific
    equipment for the use of liquefied petroleum gases in their
    propulsion system with regard to the installation of such
    equipment.
     
  12. eddievanbitz

    eddievanbitz Trader - Funster

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    But it is the only knob on the bottle! and the gas does stop coming out when you turn it :)
     
  13. scotjimland

    scotjimland Funster Life Member

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    your point is ?
     
  14. andrewjw

    andrewjw Funster

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    Correct...re it being the only knob on the bottle.

    And hopefully when I fill the bottle tomorrow I'll be able to confirm that it does control the gas flow...I'm confident it will.

    It would probably be helpful when a long standing design is changed the manufacturer might make it clear what all the various component parts do...

    Particularly when many people would like [and are encouraged by the manufacturers blurb] to fit it themselves..:)

    I fitted a dual bottle / auto changeover GasLow system in my previous van 10 years ago...worked faultlessly I'm pleased to say.

    Now that I've found my new knob I'm feeling better already!:D
     
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  15. iandsm

    iandsm Funster

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    Thanks or that, if these regs only apply to gas bottles for propulsion system why are Gslow making the new bottles compliant with R67? Have I missed something?
     
  16. scotjimland

    scotjimland Funster Life Member

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    Honestly don't know the answer.. after reading the regs that was my first thought..

    it may be in anticipation or they are going to an export market that demands that compliance.. EU perhaps ?

    really just guessing one of the more knowledgeable people will be along shortly ;)
     
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  17. iandsm

    iandsm Funster

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    Don't think I will panic about changing mine then:)
     
  18. scotjimland

    scotjimland Funster Life Member

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    if you're thinking of scrapping.. keep me in mind ;)
     
  19. mitzimad

    mitzimad Funster

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    theres an old saying in engineering its easy to make it work but making it idiot proof is a whole different ballgame
     
  20. eddievanbitz

    eddievanbitz Trader - Funster

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    It's the only thing that turns! So would probably be the ON/OFF?
     
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