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Duotone Airport II valve - tips on fixing leak from pressure flap?

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Created by NorthernKitesAUS 3 months ago, 11 Oct 2022
NorthernKitesAUS
QLD, 1033 posts
11 Oct 2022 3:29PM
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I don't know why manufacturers invent the most complex and obscure systems sometimes. Seriously, this valve is way over the top. It has screws on the inside (screws inside a bladder!!?) holding the pressure flap - a small round piece of rubber that is simply meant to stay in place assuming the LE bladder has the right amount of pressure. Anything less and the valve flap just "falls" off releasing all the air and fast!
It has a twist dial type plastic tube with an angled latch (I am really struggling explaining how complex this is), so when you twist the plastic tube with those sharp little prong things, it pushes open the flap releasing the air.
I get it guys - it's meant to work with enough pressure holding the pressure flap in place.
But a sudden crash and the valve flap bounces off and woosh the entire LE bladder deflates.
Over time, and depending on heat and storage, the pressure flap (fk I hate repeating that term), just doesn't hold.
A simple Slingshot 12mm pressure valve would have saved a lot of pain really. This goes to you too Cabrinha!
#RANT OVER#
I just wanted to know if anyone has any ideas on how to get that bloody pressure valve working again? At $60 retail plus postage for an entire replacement seems wasteful to the environment and costly.
Thanks
Lofty

Chris_M
2118 posts
11 Oct 2022 5:58PM
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Hang on, did they say if it's a game-changer?

Because if it's a game-changer, then it is actually better, and it is you who is worse...

weebitbreezy
588 posts
11 Oct 2022 6:22PM
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The pressure flap is only supposed to hold air in whilst you disconnect the pump. The screw on cap is supposed to be the air tight bit.

According to the duotone literature anyway.

weebitbreezy
588 posts
11 Oct 2022 6:26PM
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Oh wait was this supposed to be a wrong answers only thread

Its because of ....... trying to come up with something about flaps that you need to push aside with your fingers ??? ...... maybe something about rotating your fingers to get your hose in????

Nope nothing comes to mind. As you were. Its a daft design mainly to sell new pumps for $$$$

NorthernKitesAUS
QLD, 1033 posts
12 Oct 2022 4:07PM
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Select to expand quote
Chris_M said..
Hang on, did they say if it's a game-changer?

Because if it's a game-changer, then it is actually better, and it is you who is worse...


Hey I have invented a kite and I called it Pansh. IT'S A GAME CHANGER. trust me on this! LOL

NorthernKitesAUS
QLD, 1033 posts
12 Oct 2022 4:10PM
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Select to expand quote
weebitbreezy said..
The pressure flap is only supposed to hold air in whilst you disconnect the pump.


No. It's supposed to hold the air - and that's it. Nothing else holds the air. One grain of sand along the bottom rim of the nozzle valve and woosh!

What they should have done is molded a ridge around the nozzle valve, so the rubber flap part has a ridge to fit inside the valve ridge, and that would certainly have created better pressure - or the three-screw cage that holds the rubber flap be thicker to push the flag a little to create resistance against the inserting of the air hose.

Give me $500,000 and I'll design a way better system.

Waveswindy
NSW, 111 posts
12 Oct 2022 5:34PM
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Try to the North Valve ... same same but working

weebitbreezy
588 posts
12 Oct 2022 8:22PM
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Select to expand quote
NorthernKitesAUS said..

weebitbreezy said..
The pressure flap is only supposed to hold air in whilst you disconnect the pump.



No. It's supposed to hold the air - and that's it. Nothing else holds the air. One grain of sand along the bottom rim of the nozzle valve and woosh!



Your not the type of person who used to leave the valves on his kites open once they started sticking plastic ball bearings into the valves too? There's a whacking great plastic cap with a rubber seal there for a reason. Blow the pump into it to blow any sand out and you're golden. Same concept as Liquid force/Core etc. This is the same company that sticks rubber seals onto their pumps to get an airtight seal. They like to over engineer everything so not saying it couldn't be a lot better or simpler.

No if you were complaining about the deflate I could go with you. If you don't bend the air cap out of the way of the protective patch and onto the canopy - you can't force the air out when rolling up your kite at the end of the session even by sitting on the thing.

ActionSportsWA
WA, 888 posts
14 Oct 2022 8:56AM
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Hi Peeps,

The flap is only to prevent the air from escaping when you pull out the large bore connection from the pump. It is not designed to be air tight. The rubber seal within the cap that you screw in place after you remove the valve is the seal to prevent air leakage.

These can leak air if you do no maintenance on your kite. This is exactly the same as the Ozone and many other screw on caps. If you never clean the sand from the rubber seal, don't be surprised if you have a leak from the cap.

Simple: Every once in a while if you have a problem, remove the black seal, clean it, and re-install it. That's it!

DM

NorthernKitesAUS
QLD, 1033 posts
15 Oct 2022 6:45PM
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Oh god. Yeah that solved it. Coming from old-school repairs I thought the flap itself was meant to be air tight. It is (have to defend my ego somehow ) on the Cabrinha older style one-pump valves (the ones that had the detachable connector for the hose). Maybe, Cabrinha ones worked because the "flap" is thinner and so bends and contours itself better over the valve outlet?
Anyway, all good and good to know now. Thanks AWA



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"Duotone Airport II valve - tips on fixing leak from pressure flap?" started by NorthernKitesAUS