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info on installing a second LPG Tank 

 

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 Post subject: info on installing a second LPG Tank
Posted: Wed Feb 03, 2010 10:05 pm 
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Hi All i have a EF wagon on gas and would like to install another tank i have here its complete with everything out of another car in fact the whole system was only 7 months old but only need the tank and have gone through the pages about installing another tank and other than saying you need a hydrostatic valve theres no much other information

What i would like to know is how to connect the two tanks in series so when i fill from my exsisting filler it fills both tanks and how to connect the second tank as well.

I cant seem to find any info on what this Hydrostatic Valve is? can any one help a diagram would be great if anyone has one.

Thanks Alan
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 Post subject: Re: info on installing a second LPG Tank
Posted: Wed Feb 03, 2010 10:24 pm 
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There might be some more info on 4X4 forums?

Check a few out mate :)

Let us know how you go mate

Cheers

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Wed Feb 03, 2010 10:41 pm 
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Will be required to be got from the gas shop.
The hydrostatic valve goes in as a t piece between the 2 supply lines from the tanks to your motor. It will allow the tanks to drain off equally until one runs out of gas and then it will close off and just run off the tank with gas remaining.
Fill lines are just T pieced from the filler to the tanks. The tanks individual AFL valves will control the rest. One tank will cut off first as you are filling and the other will keep filling until the AFL on that one is activated.

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Wed Feb 03, 2010 10:47 pm 
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Pretty much what evl098 said but mine didnt empty the tanks equally.

Depending on the time of day/weather/which side of the bed I got out of 1 tank would empty first before starting on the other.

Sometimes it would start on 1 tank then switch and completely empty the 2nd before going back to the first.
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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 12:26 am 
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Slightly related question.

If you have two tanks and two convertors, can you just run one line from each tank to each convertor?

I could see there being an issue if one runs out before the other.

BenJ

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 12:29 am 
Getting Side Ways
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BenJ wrote:
Slightly related question.

If you have two tanks and two convertors, can you just run one line from each tank to each convertor?

I could see there being an issue if one runs out before the other.

BenJ


And in theory double the rebate lol

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 2:46 am 
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BenJ wrote:
Slightly related question.

If you have two tanks and two convertors, can you just run one line from each tank to each convertor?

I could see there being an issue if one runs out before the other.

BenJ

Well yeah you could but the mixtures would be erradic with differing tank pressures etc.
Much better off running a 4 valve tank and two supply lines.

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 7:37 am 
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BenJ wrote:
Slightly related question.

If you have two tanks and two convertors, can you just run one line from each tank to each convertor?

I could see there being an issue if one runs out before the other.

BenJ


BENJ you didnt read it properly did you iam only using the tank none of the rest.

Still need info on installing the second tank as to how to connect it ?
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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 12:16 pm 
Getting Side Ways
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SV-Valiant wrote:
BenJ wrote:
Slightly related question.

If you have two tanks and two convertors, can you just run one line from each tank to each convertor?

I could see there being an issue if one runs out before the other.

BenJ


BENJ you didnt read it properly did you iam only using the tank none of the rest.

Still need info on installing the second tank as to how to connect it ?


Did I not explain it a couple of posts up?
That is it. There is nothing more too it.

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 3:21 pm 
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2nd tank will probably require an engineers certificate.

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 4:10 pm 
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Sturmovik wrote:
2nd tank will probably require an engineers certificate.



What if a gas fitter installed it? surely not.

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 6:28 pm 
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EVL098 wrote:
Will be required to be got from the gas shop.
The hydrostatic valve goes in as a t piece between the 2 supply lines from the tanks to your motor. It will allow the tanks to drain off equally until one runs out of gas and then it will close off and just run off the tank with gas remaining.
Fill lines are just T pieced from the filler to the tanks. The tanks individual AFL valves will control the rest. One tank will cut off first as you are filling and the other will keep filling until the AFL on that one is activated.

EVL098 wrote:
SV-Valiant wrote:
BenJ wrote:
Slightly related question.

If you have two tanks and two convertors, can you just run one line from each tank to each convertor?


I could see there being an issue if one runs out before the other.

BenJ


BENJ you didnt read it properly did you iam only using the tank none of the rest.

Still need info on installing the second tank as to how to connect it ?


Did I not explain it a couple of posts up?
That is it. There is nothing more too it.


Well actually no you havent explained it,
I want to put a second tank in both tanks have filler plugs and a exit point as well and other than saying a t piece goes in it explains nothing.

I assume the exits pionts (where gas comes out and goes to converter) may be where the t piece goes in ? but what do you do with the second filler plug or does the first tank fill through the exit point and fills into the second tank?

And on the second tank there is some wires and a fitting that has a couple of wires on it do they still get used?
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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 6:45 pm 
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Hi Fill line can just have a T-piece in place of existing elbow and new line made to connect to fill point on new tank. The supply line needs the hydrostatic valve and it is a T-piece with a one way valve in each line that goes to each tank and a pressure relief valve in the line to the engine, what it does is let gas out of each tank but not back into the tank. i.e. if both tanks were filled and one tank gets a bit hotter than the other without a hydrostatic valve liquid lpg would be pushed from the hotter tank to the colder tank overfilling it and if it vented it would release liquid lpg which would expand 270 times in volume and make a very large explosive mixture! NOT GOOD Cheers MD
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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 9:39 pm 
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XR-Lane wrote:
Sturmovik wrote:
2nd tank will probably require an engineers certificate.



What if a gas fitter installed it? surely not.


Considering a 2nd tank will have to be mounted in a non standardised location, with custom brackets and lines, im pretty sure an engineer will need to sign off on it.
A good gas fitter should be consulting an engineer before undertaking the job also.

 

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 Post subject: Re: info on installing a second LPG Tank
Posted: Thu Feb 04, 2010 10:58 pm 
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Thanks Ash for taking the time to explain it better, no wont worry about having a engineer sign off the only time i get pulled over is when iam speeding lol, but should be good till the car dies I was going to use the one i bought around 6 months ago but have deceided to use the one out of the sedan iam wrecking and will sell the other complete unit.

I will probably make a start of it on the week end and take photos of it along the way for other dummies like me who havent done it before.

Thanks Alan
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