Gas flow problem

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moondog18b

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Subject:

Gas flow problem

· Posted: 08.11.2018 · #1

Hi all, I am in Spain using Spanish gas ( with Irish control valve). The last few times changing bottles there has been a problem and I don’t know whether I have the right method in the right order. So here is my method
1) Attach new bottle and turn on the flow regulator to open the bottle.
2) Press the button on the wall valve for 5to 10 seconds to purge system, then release.
3) Meanwhile other half is inside with the gas tap turned on to check for gas, nothing!!!
Have tried different permutations, holding button up for longer, disconnecting bottle and going through the whole process again, still no joy.
Am sure that the gas is coming from the bottle to the wall valve.
The hose is 1 year old, the bottle regulator is the same and it is the correct bottle regulator.
All connections are tight and no gas leak smell in locker or camper.

Any suggestions, ideas would be appreciated as it’s doing my head in.
Thanks

mad max

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Re: Gas flow problem

· Posted: 08.11.2018 · #2

Why is other half checking inside?
She may be activating leak safety if its fitted,

witzend

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Re: Gas flow problem

· Posted: 08.11.2018 · #3

WE do

Daffysparks

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Re: Gas flow problem

· Posted: 08.11.2018 · #4

Excuse my ignorance, but I don’t understand what you are doing. In my MH to change cylinder, turn off empty cylinder. Disconnect pigtail. Connect pigtail to full cylinder. Turn on gas. Go inside, light gas ring, make tea !!!!

Thorn123

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Re: Gas flow problem

· Posted: 08.11.2018 · #5

Between the pigtail end and the gas bottle, there can be an extra inline valve fitted, which has a green button.
It is a anti burst valve. Should the gas pressure drop suddenly, it automatically closes. The same happens if you mistakenly drive down the road with the cylinder tap still open. The slouching gas increases the pressure going to the regulator, and similarly the valve closes.
Back to post no 1. If you are reconnecting a new cylinder, the inline valve is closed due to no gas pressure. After fitting the new cylinder, and should there be an appliances drawing gas, the gas pigtail cannot pressurise up, and the inline valve stays closed.
I hope that this explains it.
Malcolm

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Re: Gas flow problem

· Posted: 08.11.2018 · #6

Quote by Thorn123

Malcolm

Thorn123

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Re: Gas flow problem

· Posted: 08.11.2018 · #7

A picture is worth a thousand words.
Thanks

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Re: Gas flow problem

· Posted: 08.11.2018 · #8

Mistakenly drive down the road with the gas open !!!

sprinter

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Subject:

Gas flow problem

· Posted: 09.11.2018 · #9

Quote by Thorn123

A picture is worth a thousand words.
Thanks

Malcolm . Am I correct in thinking then the steps should be turn off all appliances ,disconnect bottles ,connect new bottles ,then open green valve ( known as a slam shut ) and then light appliances ?
Has anyone got the same slam shut valve fitted on Irish red propane bottles.
The photo is UK type propane hose tail.

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Re: Gas flow problem

· Posted: 09.11.2018 · #10

The photo is UK type propane hose tail.

The photo was posted by Witzend who is from Cornwall hence the UK pigtail

moondog18b

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Problem Solved

· Posted: 09.11.2018 · #11

Hi all, problem solved, thanks for the advice.

Shantrek

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Valve

· Posted: 09.11.2018 · #12

So is it a push to reset or twist ?

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Re: Gas flow problem

· Posted: 09.11.2018 · #13

Push and hold for 5 seconds.

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Re: Gas flow problem

· Posted: 09.11.2018 · #14

Quote by Thorn123

Between the pigtail end and the gas bottle, there can be an extra inline valve fitted, which has a green button.
It is a anti-burst valve. Should the gas pressure drop suddenly, it automatically closes. The same happens if you mistakenly drive down the road with the cylinder tap still open. The slouching gas increases the pressure going to the regulator, and similarly, the valve closes..........................................

I Don't understand this. I NEVER turn off the gas while driving, that is the benefit of a Secumotion system or the inline excess flow valve, if the line bursts, like in an accident, the flow of gas is automatically cut off.

The Secumotion and excess flow valve make running the fridge or heating while in motion safe.

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Re: Gas flow problem

· Posted: 09.11.2018 · #15

Quote by sprinter

.....................................................
Has anyone got the same slam shut valve fitted on Irish red propane bottles. .......................

Ya, I've got them on mine, they were fitted a couple of years ago when replacing the original pigtails.

Thinking about the OP. If there are those 'slam shut' valves on the pigtails AND a Secumotion type device, perhaps it's necessary to reset the 'slam shut' valves first otherwise the Secumotion won't detect any gas pressure when trying to reset it and fail to reset.
Just thinking aloud.

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Re: Gas flow problem

· Posted: 09.11.2018 · #16

when travelling

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Re: Gas flow problem

· Posted: 09.11.2018 · #17

Just getting back to this post now.
As for sprinter question, the " slam shut" is on our pigtail for irish red cylinder of propane.
On occasion, when my left handed wife has opened the cylinder fully instead of closing the tap, and after driving the slam shut has closed, but this is more common when the cylinder is below quarter full.
Malcolm

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Re: Gas flow problem

· Posted: 10.11.2018 · #18

Quote by eirebus

The photo is UK type propane hose tail.

The photo was posted by Witzend who is from Cornwall hence the UK pigtail

Yes I know that, my question was has anyone got the same fitted with an Irish hose tail to know where to get one
Has anyone got the same slam shut valve fitted on Irish red propane bottles.

witzend

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Re: Gas flow problem

· Posted: 10.11.2018 · #19

Quote by Thorn123

On occasion, when my left handed wife has opened the cylinder fully instead of closing the tap, Malcolm

I got a Right Handed one that does that to

Thorn123

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Re: Gas flow problem

· Posted: 11.11.2018 · #20

Sprinter, our mh is away at the moment, when it is back I will post a photo.
The pigtail hose has a female threaded end and the gas cylinder connector has a male thread on the pigtail side. The slam shut has opposite thread patterns at the respective sides and connects inline.
The female pigtail connects the male side of the slam shut and the female side of the slam shut connects to the male side of the gas cylinder connector.
Irish or uk type of cylinder connection do not enter the equation because the slam shut is fitted between the pigtail hose and the cylinder connection.
Malcolm

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Subject:

Gas flow problem

· Posted: 11.11.2018 · #21

Thanks Malcolm. I have come across the valve below but can't seem to find one with propane female thread.

GasStop Emergency Shut-off Valve - UK POL for Propane LPG
by GasStop
£44.99
They appear to only make it for UK.

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Re: Gas flow problem

· Posted: 26.02.2021 · #22

Was in the Motorhome today and cant get the Gas to flow, I have a feeling my Truma regulator is goosed, I pressed the first button and the second button on the regulator for 5 seconds and only got a tiny amount to flow for a short time. after googling the problem it is widely believed that the regulator is to blame due to oil from the gas bottle. anyway a new Truma is around €85 from charles camping, I can get a Cavagna from hamiltons for under €20
https://www.google.com/aclk?sa…xBR&adurl=

They claim they are inter changeable, anyone know or any advise on the matter?

mad max

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Re: Gas flow problem

· Posted: 26.02.2021 · #23

Try a different gas bottle first if possible Pat,
I have seen it happen where a bottle was to blame and the regualtor was OK,

Worth a try if there is a spare bottle handy

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Gas flow problem

· Posted: 26.02.2021 · #24

Pat, if Hamilton's say it's a replacement go for it , they are rarely wrong.
The other one sounds like the M/ L /C/ M. Profit ripoff.

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Re: Gas flow problem

· Posted: 26.02.2021 · #25

Quote by mad max

Try a different gas bottle first if possible Pat,
I have seen it happen where a bottle was to blame and the regualtor was OK,

Worth a try if there is a spare bottle handy

Tried a new bottle this evening John and no go.

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Re: Gas flow problem

· Posted: 27.02.2021 · #26

Quote by sprinter

Pat, if Hamilton's say it's a replacement go for it , they are rarely wrong.
The other one sounds like the M/ L /C/ M. Profit ripoff.

My thinking too Martin and to be fair to Hamilton's they are the only uk company that haven't screwed me on postage since Brexit, Ill rephrase that, they are the only company from the uk I bought stuff from, between ripoff postage and not wanting to post to Ireland, Trading with the UK is ridiculous.

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Re: Gas flow problem

· Posted: 27.02.2021 · #27

Quote by CHAUSSON

Tried a new bottle this evening John and no go.

Worth a try, at least you know its not the problem now

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Re: Gas flow problem

· Posted: 27.02.2021 · #28

Pat is the gas working anywhere else? I say this because if I haven’t used gas for a while it doesn’t have enough umphh to power the fridge and I have to turn on the hob for a while (5/10 minutes) and then it’ll power the fridge. Just a possibility that could be the issue with your boiler.

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Daffysparks

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Re: Gas flow problem

· Posted: 27.02.2021 · #29

Quote by StrandcampingDoonbeg

Similar happened to me. One ring of hob would be ok, put on second one and flame would go low on both. Left one on for 5 minutes and then put on heating. Everything worked fine then.

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Re: Gas flow problem

· Posted: 27.02.2021 · #30

Quote by StrandcampingDoonbeg

We went away the weekend before Christmas and had that exact problem, the heating worked after a few goes, but the fridge took a while longer, I still turn the fridge on every couple of weeks and the odd time it doesn't work properly

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Re: Gas flow problem

· Posted: 27.02.2021 · #31

No, I got a very weak flame on the hob but it cut out after a short while, another thing Late in the season Last year the fridge was running bad with fumes coming in the door if it was left open. Just wondering now was it been starved of gas. Look the one at Hamilton’s won’t break the bank, it’s worth a try. I was just wondering would someone come back and say you can’t use that because............,?
I’ll get that and let ye know the outcome.

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Re: Gas flow problem

· Posted: 27.02.2021 · #32

Quote by eirebus

Quote by StrandcampingDoonbeg

Sounds we have the same problem Dave

Daffysparks

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Re: Gas flow problem

· Posted: 27.02.2021 · #33

Quote by CHAUSSON

Exactly right Pat. I’d say you’re right anyway

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Re: Gas flow problem

· Posted: 27.02.2021 · #34

Using Cavagna regulator for 5 years without issues. Just make sure you get the correct one . They come in 2 connection sizes, 8mm and 10mm

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Re: Gas flow problem

· Posted: 27.02.2021 · #35

Just read head line and sure loads of good advice given(to much to read) but for me its eat 12 sticks of Henry Goode's Soft Eating Liquorice works a treat I can keep a gas flow up almost all day

Sorry could not resist

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Re: Gas flow problem

· Posted: 27.02.2021 · #36

Quote by voyager

Using Cavagna regulator for 5 years without issues. Just make sure you get the correct one . They come in 2 connection sizes, 8mm and 10mm

That is what i wanted to hear Joe, I need the 10mm version. My truma is screwed to the roof of the gas locker, do you know if the Cavagna can be operated in that orientation, also do you need to turn off the gas at the bottle while driving? that is something I have never done as long as I'm Motorhoming.

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Re: Gas flow problem

· Posted: 27.02.2021 · #37

Quote by heanorboy

Think you need a SOG David

Couldn't resist either

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Re: Gas flow problem

· Posted: 27.02.2021 · #38

Quote by CHAUSSON

Quote by heanorboy

Think you need a SOG David

Couldn't resist either

What about an extractor fan?

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Re: Gas flow problem

· Posted: 27.02.2021 · #39

Quote by CHAUSSON

Quote by voyager

Using Cavagna regulator for 5 years without issues. Just make sure you get the correct one . They come in 2 connection sizes, 8mm and 10mm

Hi Pat
Should be OK to mount horizontally but you can confirm with Hamiltons
For what its worth our Truma failed with exactly the same symptoms as you have described
The Cavagna regulator is not like a Truma Secumotion and the gas will require to be isolated from the cylinder while travelling for obvious safety reasons - that explains some of the price difference perhaps.

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Re: Gas flow problem

· Posted: 27.02.2021 · #40

Thanks Guys for your help, it is greatly appreciated

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