Tyre Deflators
Submitted: Monday, Aug 31, 2009 at 18:56
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Member - Kroozer (WA)
I reckon its time to invest in a set of or a tyre deflation device. As i do a fair bit of sand driving and offroad driving, i am always altering tyre pressures to suit.
On the weekend i seen a fella using the new ARB ezi deflator, which looked rather quick and simple. But i have wanted a set of the Staun deflators, as you simply screw them on and let them do the work and the ARB one looks like it wouldnt be as tough or as long lasting. Plus it has a gauge, and they never stay accurate.
What i wanna know is, how quick are the Stauns? To drop pressures from say, 35psi to 25psi, can you just screw them on and drive off or do you have to stay stationary?
And also, they are available in 3 different models i understand. Light duty, 0-10psi, medium duty 10-30psi and heavy duty 15-55psi. I was told that these drop in 6psi increments and you adjust by turning the top a certain amount of clicks or something, is this correct. I take it for my style of driving i would go the medium duty as my pressures vary from 30psi to 18psi so that seems good right.I could then drop them from raod pressureto 30, then down to 24, then 18, then down to 12 if i really had to. I reckon they would come close to suiting my driving conditions, but would prefer to be able to set them exactly at what i needed to at the time really. What does everyone else use, apart from a stick or pen please, as i do now.
Reply By: Member - ross m (WA) - Monday, Aug 31, 2009 at 19:33
Monday, Aug 31, 2009 at 19:33
My Stauns are set at about 18 psi for beach driving.
By the time I have put the last one on,the 1st one has about 5-6 psi still to go from 45 psi.
In your case,going down to 25psi will mean the 1st one is ready to come off by the time you have fitted the last one.
Im guessing less than 10 mins for me.
Ive heard of some people driving off with them on,I dont through fear of losing one.
They are best kept clean in their pouch when not being used.
I havent seen any light/heavy duty types.
Each rotation will lower or raise them 6psi but you can set the threaded locknut to the pressure wherever you want it .
Its a simple set up with a spring loaded valve.
Ive seen some cheap chinese versions ,not sure what they are like.
Eventually I will aquire an ARB deflator for my kit,they are useful for when you wish to adjust the pressure to suit the terrain
AnswerID:
381325
Follow Up By: Member - ross m (WA) - Monday, Aug 31, 2009 at 19:34
Monday, Aug 31, 2009 at 19:34
I also think they come preset at about 24psi,but check 1st
FollowupID:
648749
Reply By: Muddie - Monday, Aug 31, 2009 at 19:40
Monday, Aug 31, 2009 at 19:40
Hi Kroozer,
I have a set of Stauns and have been a fan for many years but then purchased an ARB ezi deflator. I now find it much more flexible and quicker, the Stauns where set in pairs at 18 and 24psi and I would use a stick to achieve other pressures, for the Stauns to be really effective you would need 2-3 sets. I have not tried fitting them and driving off, I usually check the pressure with a gauge so the ARB does all this in about a minute a tyre. Provided you are comfortable about screwing the valve out and back in they work very
well.
regards David
AnswerID:
381328
Reply By: On Patrol & TONI - Monday, Aug 31, 2009 at 19:45
Monday, Aug 31, 2009 at 19:45
Kroozer
There are a few pre set versions, but what I have done is, set two at 28psi and 2 at 18 psi, this way I can set up for beach or rough in just a few minutes.
I don't take any longer than other club members in getting ready even just using only two at a time. They can be a bit fiddly to set up at the pressures you want but that is a one time only event, once done tats the end of it.
You don't have stand bent over for the duration, just screw on and walk away.
I would not drive with them on as that could damage them, also the valve could be bushed in and drop the pressure even further.
Colin.
AnswerID:
381329
Reply By: Member - Allan B (QLD) - Monday, Aug 31, 2009 at 19:53
Monday, Aug 31, 2009 at 19:53
G'day Kroozer,
Yeah I've got a set of Staun deflators, 10-30psi set at 18psi.
They can be reset by adjusting the collar by a prescribed degree but I'm not confident of the accuracy that way. They came set at 18psi but it is easy to reset using a check gauge. When I air-down its always to 18psi then if I want lower I do it by hand and use the gauge.
Going down from highway 40psi to 18psi I screw each one on and move to the next. By the time I have screwed the last one on the first is almost ready to be removed (about 40 seconds) then continue around to remove them. I have established their accuracy and do not bother to check each tyre with a gauge.
I would not be confident to drive with them on the valve stem as their weight and the centrifugal force may cause problems.
The ARB device does one tyre at a time and removes the valve core within a captive chamber to deflate. Therefore deflation of each tyre is faster but a little messier and you have to be bent over at each tyre for the deflation period. Overall probably not much speedier than the Staun.
To drop the pressures progressively from road to 30, 24, 18, 12 would require reseting each Straun for each increment, a messy procedure. If this is your regime then the ARB system would be better suited. A good quality gauge should stay accurate if it is not abused although I prefer a digital gauge.
AnswerID:
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Reply By: Member - Phil G (SA) - Monday, Aug 31, 2009 at 19:58
Monday, Aug 31, 2009 at 19:58
A few minutes here and there doesn't matter, so both the ARB deflater and the Stauns (and the stick in the valve) do a good job.
With the ARB Ezideflater you can go down to whatever pressure you like. I only use
mine for a major airing down - road pressures down to say 18psi. I then fine tune the pressures with a pressure gauge and a 40mm bullet head nail. I'm sure you can use Stauns in the same way.
AnswerID:
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Follow Up By: Member - Phil G (SA) - Monday, Aug 31, 2009 at 20:29
Monday, Aug 31, 2009 at 20:29
to add, everything must have more than one purpose!!
I modified my ezideflater so I can use it for reinflation of tubeless tyres - get that big woosh of air without setting a tyre on fire!
So I chopped it in half, and added a schraeder valve sideport, and a coupling. Then plug in a length of hose. When the tyre valve is removed the whoosh of air can be directed into a flat tyre for reinflation of a stubborn tubeless tyre. Here's a couple of photos:
FollowupID:
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Follow Up By: Member - Kroozer (WA) - Monday, Aug 31, 2009 at 22:04
Monday, Aug 31, 2009 at 22:04
Excellent,
well done. Patent it NOW.
FollowupID:
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Follow Up By: That Troopy Bloke (SA) - Tuesday, Sep 01, 2009 at 13:06
Tuesday, Sep 01, 2009 at 13:06
That's brilliant. I presume the valve is removed from the 'receiving' tyre first before attaching the tyre chuck to re-
seat the bead?
I can't work out what the schraeder valve is for though.
Cheers
Glenn
FollowupID:
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Follow Up By: Member - Phil G (SA) - Tuesday, Sep 01, 2009 at 17:20
Tuesday, Sep 01, 2009 at 17:20
Gday Glenn,
Yep, you leave out the valve on the flat tyre. I also removed the "guts" out of the tyre chuck, to maximise flow (see photo below).
Schraeder valve is for your tyre pump, so it replenishes the air level in the donor tyre. The donor tyre is one of my spares inflated to max pressure. The Schraeder valve isn't absolutely necessary - just an extra bit that was easy to add.
FollowupID:
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Reply By: Member - Kiwi Kia - Monday, Aug 31, 2009 at 20:30
Monday, Aug 31, 2009 at 20:30
I have given away my Stauns and now use the Ezi deflator.
Far more accurate and easier then the Stauns. I also found that the Stauns can stick a bit at low pressures (14 - 18 psi)
KK
AnswerID:
381341
Reply By: Member - Graham H (QLD) - Monday, Aug 31, 2009 at 20:57
Monday, Aug 31, 2009 at 20:57
You can have my nearly new Stauns for $45 plus a bit for postage Have never used them as wife wont go where I would need them LOL
AnswerID:
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Follow Up By: Member - Kroozer (WA) - Monday, Aug 31, 2009 at 21:59
Monday, Aug 31, 2009 at 21:59
Cheers for the offer Graham, im sure someone out there will snatch that very soon. After considering all the info put forward i might go with the ARB one i think. Seems everyone has had the staun but has chosen to go ARB.
Plus up here, 2 minutes is alot of time when the tides coming in. Every second counts so the quicker and easier the better.
FollowupID:
648791
Reply By: Member - Tony V (NSW) - Monday, Aug 31, 2009 at 20:58
Monday, Aug 31, 2009 at 20:58
Hmmm, interesting info, I have Stauns and an ARB Ezi deflator.
With the Stauns,
I have 2 set at 20 psi and 2 at 30 psi.
If I am driving on dirt, i use the 2 x 30 psi units and delate the other 2 with the Ezi deflator. on sand I put all 4 on, I change the 2 x 30 psi one off and put the 2 x 20 psi on the tyres or use the Ezi deflator if i need to go lower.
One thing I have learnt is to check the Stauns on a regular basis, I seal the adjustment with liquid electrical tape, red for 20 psi and blue for 30 psi.
Sounds complex but it is really easy and depends on if I am in a hurry.
AnswerID:
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Reply By: Member - Roachie (SA) - Monday, Aug 31, 2009 at 21:18
Monday, Aug 31, 2009 at 21:18
I had 2 sets of Stauns, but sold them both and bought a Ferret.
http://www.youtube.com/watch?v=Fc_hV1dgHW4
Much quicker than the Stauns....but speed isn't always everything I suppose.
Roachie
AnswerID:
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Follow Up By: Serendipity of Mandurah (WA) - Monday, Aug 31, 2009 at 22:13
Monday, Aug 31, 2009 at 22:13
I bought a ferret deflater years ago and still use it now. Best thing and quickest I have found. Easy and best of all simple.
David
FollowupID:
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Follow Up By: Krakka - Tuesday, Sep 01, 2009 at 11:37
Tuesday, Sep 01, 2009 at 11:37
Ditto to above, Australian made product, search on ebay.
Regards
Krakka
FollowupID:
648873
Reply By: Traveller - Monday, Aug 31, 2009 at 21:25
Monday, Aug 31, 2009 at 21:25
I have a set of Stauns and had an ARB thingy as
well which I hated.
I prefer to use a stick or a sharp stone. 5 or 10 minutes either side of the equation does not matter in the scheme of things. :-)
AnswerID:
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Reply By: Member - Kroozer (WA) - Monday, Aug 31, 2009 at 22:03
Monday, Aug 31, 2009 at 22:03
Righto everybody, thanks for all the input. Has certainly made me change my mind a little. I will go the ARB one first i think and see how it suits. Only becuase i sometimes only drop pressure down to 32-34 psi which i didnt take into account. See how it goes, just hope the valves seal properly after.
Thanks all, very very happy with the amount of information available, and over the moon that it was all really helpful and straight to the point.
Cheers
Kroozer
AnswerID:
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Follow Up By: On Patrol & TONI - Tuesday, Sep 01, 2009 at 09:47
Tuesday, Sep 01, 2009 at 09:47
ARB Staun
Krooza
See for yourself how quick the arb is or is'nt!!!!
Arb is flexible in adjusting tyres, yes, quick, maybe.
FollowupID:
648852
Reply By: landseka - Tuesday, Sep 01, 2009 at 11:21
Tuesday, Sep 01, 2009 at 11:21
Here is a link to a US site which has compared many types of deflaters .
I have had a set of Oasis
Trailhead for 15 odd years and they still work fine.
They are infinitely adjustable via an allen key and are set and forget apart from regular (annual) dismantling and cleaning.
With
mine I have always been in the habit of stopping about a km from the
beach access or whatever to fit the 4 units then by the time I hit
the beach the pressure is right.
When I get to my fishing spot I remove them. Never had a problem.
One good tip when initially setting whatever brand you get, use a wheelbarrow or cycle tyre. The lower volume of air required makes airing up and deflating soooo much quicker than using your 33" AT's lol.
Regards
Neil.
AnswerID:
381411