Gaslow turn off when filling? (1 Viewer)

[Tude]

Hi never gaslow before heard different views do you turn the bottles off when filling or just leave them open. I had a lpg tank before and never had to close the tank when filling. Your thoughts pls

 

[Robert Clark]

Yes
Always thun off to prevent potential damage to the regulator

 

[Don Quixote]

Always turn it off when refilling........ a lot of pressure.....

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[Clarky]

I always turn off..............if I remember.

Richard.

 

[WESTY66]

I got alugas (great system BTW) and I’m sure I was instructed to just fill, don’t even have to open the locker door, just connect and fill

 

[Fletton]

I got alugas (great system BTW) and I’m sure I was instructed to just fill, don’t even have to open the locker door, just connect and fill

Me too.. alugas that is... but always turn both bottles off before filling...
It just makes sense ...

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[Zepp]

I got alugas (great system BTW) and I’m sure I was instructed to just fill, don’t even have to open the locker door, just connect and fill

I was told to turn off with gaslow , but when I had the alugas fitted on the new van they told me there is no need to turn off !

 

[tuscancouple]

I was told to turn off with gaslow

We also have Alugas and were told to just fill, so I'm confused. How can you get gas into a bottle when the valve is shut?

 

[karalal]

We also have Alugas and were told to just fill, so I'm confused. How can you get gas into a bottle when the valve is shut?

I was thinking the same thing.
I have gas-it bottles and just fill them never even thought about turning them off

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[River gypsys]

We have gaslow, never turn it off

 

[GJH]

As I always turn the bottles off when driving, and always drive to and from the filling station, the bottles are naturally turned off.
That accords with the advice received when the Alugas bottles were fitted.

 

[Robert Clark]

We also have Alugas and were told to just fill, so I'm confused. How can you get gas into a bottle when the valve is shut?

The valve is on the outlet of the bottle
Between the bottle and the regulator
The reason therefore to close the valve is to protect the regulator from too much pressure when filling

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[Gromett]

I turn it off because I don't trust the garages to maintain their pumps properly. A dodgy pump could cause a surge or over pressure event that could in theory damage the regulator in such a manner as to allow full flow of gas into the van through the regulator.

I don't know this for a fact, but I am not prepared to take the chance so I turn off before filling.

 

[andy63]

I had a lpg tank before and never had to close the tank when filling. Your thoughts pls

That sort of answers your question... as there isnt any difference between filling an underslung tank and refillable cylinders... ie you will most probably not have a problem if you dont shut the valve ...but best practice and advice seems to be to shut the valves..

I did look into this a good while ago and for what its worth i found that the filling pressure which is typically about 7 bar or 100psi above vapour pressure on the day ( which is temp dependant ) still falls a good way short of the pressure that regulators are capable of withstanding...
Thats why i suspect folk who dont bother like yourself and me and those who forget dont have a problem
Andy.

 

[gus-lopez]

Hi never gaslow before heard different views do you turn the bottles off when filling or just leave them open. I had a lpg tank before and never had to close the tank when filling. Your thoughts pls

I have a bulk tank & turn off from the tank for the simple reason that I have to turn on , open, the inlet thumb wheel to allow gas into the tank from the remote filler. The inlet & outlet thumb wheels are positioned either side of the tank gauge.

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[Lenny HB]

Fill pressure is around 140 psi, max input pressure to Truma bulkhead regulator is 230psi.
So in theory OK to leave on but with regulators costing 180 quid I ain't going to risk it. So I always turn off.

 

[Robert Clark]

I turn it off because I don't trust the garages to maintain their pumps properly. A dodgy pump could cause a surge or over pressure event that could in theory damage the regulator in such a manner as to allow full flow of gas into the van through the regulator.

I don't know this for a fact, but I am not prepared to take the chance so I turn off before filling.

An engineer from Gaslow suggested this particular scenario to us

 

[Madcaravanner]

As I always turn the bottles off when driving, and always drive to and from the filling station, the bottles are naturally turned off.
That accords with the advice received when the Alugas bottles were fitted.

Errrr the system automatially turns the gas off when driving doesn't it and only switches on when you turn the hab systems back on

Or have I got the wrong end of the stick as unless my system switch is on we have no gas

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[Rosemary1]

Asked my hubby does he and he said Jesus yes!!! Seems Gaslow have it as part of their instructions but also what Gromett said

 

[Lenny HB]

Errrr the system automatially turns the gas off when driving doesn't it and only switches on when you turn the hab systems back on

Or have I got the wrong end of the stick as unless my system switch is on we have no gas

Yep, wrong end of the stick.
It is only permissable to drive with the gas on if you have the Secumotion regulator together with either anti-rupture pigtails or bottles with anti-rupture valves.

The Secumotion regulator has a crash sensor which cuts of the gas in the event of an accident.
The anti-rupture pig tails/valves cut the gas off if the hose between the bottle & regulator ruptures.

 

[ROB1CHELSEA1]

Always turn off while driving and before filling.

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[Madcaravanner]

Yep, wrong end of the stick.
It is only permissable to drive with the gas on if you have the Secumotion regulator together with either anti-rupture pigtails or bottles with anti-rupture valves.

The Secumotion regulator has a crash sensor which cuts of the gas in the event of an accident.
The anti-rupture pig tails/valves cut the gas off if the hose between the bottle & regulator ruptures.

Ta @Lenny HB
No not totally got wrong end of stick got those just got the impression when the power goes off so does the gas will double check when we get Lockdown released the next time

 

[pappajohn]

Yes
Always thun off to prevent potential damage to the regulator

How could it possibly cause damage to the regulator?
The pump pressure can never exceed the working pressure of the bottle when in use so the pressure on the regulator will remain constant.

 

[Robert Clark]

How could it possibly cause damage to the regulator?
The pump pressure can never exceed the working pressure of the bottle when in use so the pressure on the regulator will remain constant.

I was advised by the engineer from Gaslow to always turn off before filling due to potential damage to the regulator
Though I do bow to the superior knowledge of Funsters

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[CazPaul]

How could it possibly cause damage to the regulator?
The pump pressure can never exceed the working pressure of the bottle when in use so the pressure on the regulator will remain constant.

That's what the people at Autogas 2000 said and no need to turn off at all.

 

[Lenny HB]

Ta @Lenny HB
No not totally got wrong end of stick got those just got the impression when the power goes off so does the gas will double check when we get Lockdown released the next time

Never come across a system like that. If you have an underslung tank with electric cut off valve if would be possible wire it to do it.

 

[pappajohn]

I was advised by the engineer from Gaslow to always turn off before filling due to potential damage to the regulator
Though I do bow to the superior knowledge of Funsters

Sorry if that's how it sounded, certainly wasn't intended but think about it.
The pressure in the pump and pressure in the bottle have to be equal for the pump to stop dispensing if filling to capacity.
If the pump pressure was higher then it would have to increase the bottles pressure to auto stop and would override the 80% mechanism.
That increased pressure may damage the regulator.
Turning off the bottle will have no effect as the pump will still increase the bottles pressure beyond its normal working pressure to auto stop the pump.
Now you open the valve and release that increased pressure to the regulator anyway.

The only way damage could happen is if the pump was faulty and delivering an excessively high pressure.

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[Robert Clark]

Sorry if that's how it sounded, certainly wasn't intended but think about it.
The pressure in the pump and pressure in the bottle have to be equal for the pump to stop dispensing if filling to capacity.
If the pump pressure was higher then it would have to increase the bottles pressure to auto stop and would override the 80% mechanism.
That increased pressure may damage the regulator.
Turning off the bottle will have no effect as the pump will still increase the bottles pressure beyond its normal working pressure to auto stop the pump.
Now you open the valve and release that increased pressure to the regulator anyway.

The only way damage could happen is if the pump was faulty and delivering an excessively high pressure.

A faulty pump was the reason he quoted
As some pumps are not correctly calibrated

 

[pappajohn]

A faulty pump was the reason he quoted
As some pumps are not correctly calibrated

But i covered that scenario.
If the pumps faulty its putting too much pressure in the bottle.
You laterr open the valve and release that extra pressure to the regulator..... Its no different to filling with the valve open, the higher pressure is still going to hit the reg at some point.

 

[Northernraider]

Never turn mine off.

I have crash regulator and 4 valve gasit bottles with built in valves.

I'd have to open the gas locker to turn the bottles off before filling and I don't do that as some garages don't like to see you opening lockers etc.

I doubt folk with lpg powered cars turn their tank off either

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