Gaslow changeover valves

Dec 30, 2015
342
289
Bury
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Pilote G650
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Looking at the Gaslow website, the manual valves appear to be gas specific. I'm hazy about continental gas supplies, but I believe they vary from UK. As we plan to do a lot of continental touring would I need to buy both the propane and butane valves and change them in and out depending on whether we are in the UK or abroad? Seems like a faff. Or just buy an automatic changeover valve, which they say is compatible with either type of gas?
 

Geo

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Jul 29, 2007
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Me thinks you or I are misinterpreting the meaning of change over valve
I thought feferance to two gas types was purely down to cylinder fitting ie two different types of fitting.
You appear to be alluding to the type of gas in use.
I may be wrong in assuming that once you have set up with either type Cylinders you can use either type of gas in the set up up you have.
The ref to change over be it manual or automatic simply means when one cylinder is empty the change over to the full cylinder is automatic or you have to manually do it when your gas apliance goes out
I Wonder who got the wrong end of the stick lol
 
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Jul 29, 2013
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Are you talking about connection to different type gas cylinders or change over valves for twin cylinders?
if for cylinder changes you can buy different pigtails for use with most of the EU gas cylinders we have a refillable system installed (Gasit) other makes are available on our van so you can just fill up through the built in filler cap like you would for diesel there are lots of LPG pumps at filling stations throughout the EU and although rumours of not so many in UK now we have not experienced not being able to fill upšŸ˜Š
geo quicker typeršŸ¤”šŸ˜‚

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acropolis22
Dec 30, 2015
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Bury
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Pilote G650
Exp
Two years
Me thinks you or I are misinterpreting the meaning of change over valve
I thought feferance to two gas types was purely down to cylinder fitting ie two different types of fitting.
You appear to be alluding to the type of gas in use.
I may be wrong in assuming that once you have set up with either type Cylinders you can use either type of gas in the set up up you have.
The ref to change over be it manual or automatic simply means when one cylinder is empty the change over to the full cylinder is automatic or you have to manually do it when your gas apliance goes out
I Wonder who got the wrong end of the stick lol
Well, I expect it's me that's wrong since I know not a lot about it! I understand the difference between auto and manual changeover - I'm not completely daft..... The manual valves state Propane or Butane on the front of the gauge and look identical in the pictures, (in terms of pipe size and thread). I've never seen any variation in the cylinders. Just the one type regardless of what's going in it?

Thoughts?
 
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Geo

Trader - Funster
Jul 29, 2007
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Mansfield,Notts
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Well at least you are now not alone being slightly hazy
I'm suspecting a write up error or incorrect pic in there blurb
Is it possible that although they look identical they are in fact not
propane is left hand threads and butane right hand threads
they might sell them for use on other cylinders than there own
 
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acropolis22
Dec 30, 2015
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Bury
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Pilote G650
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Two years
Well at least you are now not alone being slightly hazy
I'm suspecting a write up error or incorrect pic in there blurb
Is it possible that although they look identical they are in fact not
propane is left hand threads and butane right hand threads
they might sell them for use on other cylinders than there own
Yeah, hard to really tell from the pictures. The website seems generally reliable though. Maybe I'll just buy the auto changeover. :giggle:
 
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denisejoe

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Aug 6, 2014
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We've got auto changeover on our Gaslow system but do not use it! It seems more sensible to manually change over when one bottle is empty. At least that way you know the bottle is empty but if you let the auto do it you won't necessarily know it's started on the 2nd bottle!

Having said that we just fill up after any longer trip and have never actually emptied one bottle before filling.

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Jul 6, 2016
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Just buy the Propane manual change-over valve....that's what I use. If you use refillable cylinders, the gas will be propane anyway or at least a high proportion of propane.

The manual version (with it's pressure gauge) can also be used for leak detection. I use the leak detection facility quite often to check for leaks in the complete system. Turn on one cylinder to pressurise the system....then turn it off. Wait say 15 minutes. If the pressure indicator moves - you've got a leak.

The automatic system does NOT have the facility for leak detection. Also, there is no way of kmowing when your primary cylinder runs out of gas....unless you regularly check the auto valve.
 
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Aug 6, 2013
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Just buy the Propane manual change-over valve....that's what I use. If you use refillable cylinders, the gas will be propane anyway or at least a high proportion of propane.

The manual version (with it's pressure gauge) can also be used for leak detection. I use the leak detection facility quite often to check for leaks in the complete system. Turn on one cylinder to pressurise the system....then turn it off. Wait say 15 minutes. If the pressure indicator moves - you've got a leak.

The automatic system does NOT have the facility for leak detection. Also, there is no way of kmowing when your primary cylinder runs out of gas....unless you regularly check the auto valve.
On the other hand you don't have to go out at 2am to changeover because the fridge is clicking :giggle:.
 
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acropolis22
Dec 30, 2015
342
289
Bury
Funster No
40,920
MH
Pilote G650
Exp
Two years
Just buy the Propane manual change-over valve....that's what I use. If you use refillable cylinders, the gas will be propane anyway or at least a high proportion of propane.

I believe in the hotter continental countries, it's mainly butane in the mix. What does this mean? Will I need two valves?
The manual version (with it's pressure gauge) can also be used for leak detection. I use the leak detection facility quite often to check for leaks in the complete system. Turn on one cylinder to pressurise the system....then turn it off. Wait say 15 minutes. If the pressure indicator moves - you've got a leak.

Interesting, but perhaps not crucial to my issue.
The automatic system does NOT have the facility for leak detection. Also, there is no way of kmowing when your primary cylinder runs out of gas....unless you regularly check the auto valve.

I was thinking I'd just look at the auto changeover every time I turn the gas on or off, eg. when travelling?

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Jul 6, 2016
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I believe in the hotter continental countries, it's mainly butane in the mix. What does this mean? Will I need two valves?


Interesting, but perhaps not crucial to my issue.


I was thinking I'd just look at the auto changeover every time I turn the gas on or off, eg. when travelling?

I think the main reason why Gaslow sell both a propane and butane manual changeover valve is because propane operates at a higher pressure. Therefore, the pressure gauge is calibrated for the type of gas used.

I've noticed that after several fill-ups in mainland Europe (where they use a mix of propane/butane in the hotter countries) my pressure gauge shows a lower reading, indicating a higher proportion of butane. I now fill-up at least once a year in UK where the propane mix is 100% or thereabouts. My pressure gauge now indicates a complete "Green" segment. Another good reason for having the manual changeover valve :LOL:
 
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