Air Tanks

Submitted: Thursday, Aug 28, 2003 at 17:25
ThreadID: 6891 Views:1385 Replies:4 FollowUps:2
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In the latest 4x4 Monthly there is a vehicle with a air tank made out of a fire extigisher. Has anyone got any info on how to do this.
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Reply By: Truckster (Vic) - Thursday, Aug 28, 2003 at 19:17

Thursday, Aug 28, 2003 at 19:17
Why would you risk it ? You can buy an air tank from a truck wrecker from $10 upwards. Pressure tested and dump valves..

YMMV
AnswerID: 29486

Reply By: Member - Ray - Friday, Aug 29, 2003 at 00:19

Friday, Aug 29, 2003 at 00:19
DONT DO IT
AnswerID: 29528

Follow Up By: Ed - Friday, Aug 29, 2003 at 16:54

Friday, Aug 29, 2003 at 16:54
Why not??

If safety is your concern, then it may interest you to know that all stored pressure type fire extinguishers have their Working Pressure and Test Pressure ratings printed on them...
From the pic in the article referred to, it appears that a 9l. water type has been used..
The one that I have (chubb) has a WP of 700 KPa, & a TP of 2.0 MPa..
I believe that 1000 KPa (or 1 MPa) = (approx.) 145 PSI, therefore, from the above figures, it will have been tested to 290 PSI...
The several dry powder types that I have (1.0 kg, & 2.5 kg) have TP ratings considerably higher... Up to 3.3 MPa or 478.5 PSI...

I agree that the truck tanks are the way to go (if you can find one the right size), but from a safety point of view, I can see little if any risk using a fire ext. canister provided of course, that a suitable relief valve is fitted.

Ed. C.
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FollowupID: 20685

Follow Up By: dixie ( W.A.) - Friday, Aug 29, 2003 at 22:59

Friday, Aug 29, 2003 at 22:59
I have one fitted to my Sanden 508 compressor it has a working pressure of 150 PSI ,i have fitted a 150 PSI safety valve and it holds 130 PSI when shut off by pressure switch.Mine is an Alloy tank so i had square blocks welded to it and on the end which i drilled and tapped 1/4BSP for fittings ,work well go for it !
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FollowupID: 20726

Reply By: Matt - Friday, Aug 29, 2003 at 13:07

Friday, Aug 29, 2003 at 13:07
Check out the 4x4 Monthly forum, I thought I saw something on there... but can't find it !!
http://www.4wdmonthly.com.au/forum/index.php
AnswerID: 29551

Reply By: greg - Monday, Sep 22, 2003 at 17:54

Monday, Sep 22, 2003 at 17:54
I have been using a Fire Ext for 15 years. The guage can be replaced with a drain fitting
AnswerID: 31688

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