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  #1  
Old 08-18-2013, 06:17 PM
LettersFromFlyoverCountry's Avatar
LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Location: St. Paul, MN.
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Default Need alum tube to plastic hose fitting

I want to install the DIY AOA that Mel Asberry has but I need the coupling that SafeAir1 recommends to connect 1/4" aluminum tubing to plastic tubing. Avery is out of stock. Anyone know who else might carry such a thing?
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  #2  
Old 08-18-2013, 06:26 PM
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ChiefPilot ChiefPilot is offline
 
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Default

Stein might have the coupler as well - I *think* that is where I got mine.
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  #3  
Old 08-18-2013, 06:26 PM
crabandy crabandy is offline
 
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Location: Ottawa, Ks
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Default Steinair?

Are these what you are looking for?
http://www.steinair.com/storedetail.cfm?productid=532
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  #4  
Old 08-18-2013, 06:39 PM
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LettersFromFlyoverCountry LettersFromFlyoverCountry is offline
 
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Default

This is what I'm looking for:

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  #5  
Old 08-18-2013, 07:01 PM
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Sam Buchanan Sam Buchanan is offline
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Location: North Alabama
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Default

Quote:
Originally Posted by LettersFromFlyoverCountry View Post
I want to install the DIY AOA that Mel Asberry has but I need the coupling that SafeAir1 recommends to connect 1/4" aluminum tubing to plastic tubing. Avery is out of stock. Anyone know who else might carry such a thing?
Bob, cut a 3" length of hose (rubber, flexible vinyl, etc) that has the same ID as the OD of your tubing. Slip it over the aluminum and plastic hose and you have a coupling.

I've used this technique for over 20 years and it makes a reliable, airtight connection. It works so well you will probably have to cut the "coupling" if you need to disconnect the hoses...but you know how to make a new one.

[thread moved to General Discussion so it will be in the archives]
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Last edited by Sam Buchanan : 08-18-2013 at 07:05 PM.
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  #6  
Old 08-18-2013, 07:05 PM
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Mel Mel is offline
 
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I agree with Sam. Actually all of my pitot and AOA connections are just slip-on.

Pressures are so low that it doesn't take much to seal.
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Mel Asberry, DAR since the last century.
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  #7  
Old 08-18-2013, 08:05 PM
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Ironflight Ironflight is offline
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Third vote for the simple rubber tube sleeve - been doing it for decades, and never a problem.
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  #8  
Old 08-18-2013, 08:15 PM
deek deek is offline
 
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Location: Flathead Lake Montana - 8S1
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Default

My 31 year old LongEZ has vinyl tube couplings that are holding up perfectly. If so inclined, use a couple of small ty-wraps to cinch down lightly on the vinyl. Low weight, low cost and simple.
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  #9  
Old 08-19-2013, 02:42 AM
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az_gila az_gila is offline
 
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Quote:
Originally Posted by deek View Post
My 31 year old LongEZ has vinyl tube couplings that are holding up perfectly. If so inclined, use a couple of small ty-wraps to cinch down lightly on the vinyl. Low weight, low cost and simple.
Easier than tyraps, just slide a slightly undersize O-ring over the tube at each slip joint.

It will exert an even pressure around the plastic tube circumference unlike a tyrap.
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  #10  
Old 08-19-2013, 07:59 AM
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Bayou Bert Bayou Bert is offline
 
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Location: Prairieville, LA
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Default Don't Beat Me Up

Vinyl tubing....any special kind?
Get it from?
A couple of inches each way?
The kit I bought has "hard pipe" static run to the cockpit area.
First time I have seen that, it's alum tube...1/4" OS dia.
It is not Van's static kit. The two ports, on the outside skin are about
silver dollar size with four rivets each.
The tee for the ports only sits about 2" above the ports.
Sure would like to convert to plastic to make all the connections easier
All comments and direction greatly appreciated.
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