Summit AN fitings

[Seymour Snerd]

We use them all the time, they do have an initial failure rate of about 2-5% (1 fitting in 20-30 has to be returned or exchanged. -but for the cost savings over aeroquip. -- no problem..

Steve --

When you say above that you occasionally have to return a Summit fitting, what's typically the problem? And are these problems you are finding before you install the fittings, or are they failing in service? And are we talking about hose ends or adapters, or both?

Thanks,
Alan.

 

[Steve Wood (PANAVIA)]

I have been very happy with the Summit lines and Fittings as we have used, they are good stuff. -

Summit on a Budget, if you can spring for it, Aeroquip.

 

[Jack]

Best prices here: www.aeroquip.cc

 

[Seymour Snerd]

I have been very happy with the Summit lines and Fittings as we have used, they are good stuff. -

Summit on a Budget, if you can spring for it, Aeroquip.

Sure... But I was specifically asking for clarification of your earlier comment that "they do have an initial failure rate of about 2-5% (1 fitting in 20-30 has to be returned or exchanged."

 

[Alex]

Sure... But I was specifically asking for clarification of your earlier comment that "they do have an initial failure rate of about 2-5% (1 fitting in 20-30 has to be returned or exchanged."

My failure rate with aeroquip is about 1.5%

 

[Randy V]

Alex - Did you properly lubricate the threads before tightening? Could it have been over-tightened? Any aluminum fitting will gall / stress to the point of failure.

 

[Jack]

Here guy's:

AN TORQUE SPECIFICATION GUIDELINES​

<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com<img src=" /><o></o>​

Nut Minimum Torque Maximum Torque Ft/LBS <o></o>
<o></o>
-02 50 80 6.0<o></o>
-03 70 105 8.0<o></o>
-04 100 140 11<o></o>
-05 130 180 14<o></o>
-06 150 195 16<o></o>
-08 270 350 28<o></o>
-10 360 430 35<o></o>
-12 460 550 45<o></o>
-16 700 840 70<o></o>
-20 850 1020 85<o></o>
-24 900 1080 90<o></o>
-32 1800 2000 165<o></o>
*Torque values are shown in inch pounds for aluminum fittings.<o></o>
Inch pounds/12 = foot pounds<o></o>

 

[Seymour Snerd]

It looks like Alex's failure is while closing a hose end onto a hose. For that there is no torque specification, but rather one closes the fitting until there is 0.03" clearance between collar and hose end.

 

[Seymour Snerd]

Best prices here: www.aeroquip.cc

Yeah, aeroquip.cc (not Aeroquip itself, but rather an online store front for Murdoch industrial) is amazing. Not only are their aluminuum performance products parts at or below the prices for Summit fittings, but they also carry industrial steel versions that are usually *far* cheaper.

 

[Jack]

Exactly Alan! I buy all of my fittings and hose from them.

 

[Seymour Snerd]

Exactly Alan! I buy all of my fittings and hose from them.

Sorry, just realized, I didn't quite make the comparison right, but have edited it: At aeroquip.cc. you can get Aeroquip fittings a about the price of Summit fittings.

 

[Jack]

Perfect Alan!

 

[Alex]

Alex - Did you properly lubricate the threads before tightening? Could it have been over-tightened? Any aluminum fitting will gall / stress to the point of failure.

Properly lubricated. Doubt it was over-tightened - I usually spin them all on the same amount (i.e., until it's fully seated .... I know the spec is minimum of like 1 fingernail, but f-it, I just go until tight and seated together and I've never had a failure)

It was weird because I was tightening it just like any other fitting, no problems, then when there was about 1/8'' or so of distance left until it was finished being tightened, then all of a sudden I felt it let go. No warning (e.g., tightness), no nothing, it just let go and broke.

 

[Jack]

can you say "made in China"?

 

[Seymour Snerd]

can you say "made in China"?

No, but I can say "Replicated in China, End-user Tested in America." :thumbsdown:

And by the way, I love Aeroquip and all, but on two different occasions was sent a fitting in a sealed Aeroquip plastic bag where the part in the bag was not the part indicated by the part number. Summit's never done that to me. There's no moral to that other than everyone makes mistakes. But it can slow your project down for a couple weeks....

 

[Ron Earp]

It'll be funny if Summit fittings are simply Aeroquip doing an OEM deal. Summit doesn't make anything, they are getting them from someone.

 

[Scott Calabro]

The stuff you guy's are buying are not real AN fittings.

This is probably why you are having issues, well unless you are completely ham fisted!

I think don't Aeroquip (Eaton Corp.) is even producing aircraft quality "AN" fittings anymore.

Just the "Performance Products" line.

My advice is to buy fittings from a reputable aircraft parts supplier that will provide supporting airworthiness documents (FAA 8130).

They will be expensive but they will be top quality.

 

[Seymour Snerd]

My advice is to buy fittings from a reputable aircraft parts supplier that will provide supporting airworthiness documents (FAA 8130).

Scott: if I ever have a problem with my GT40's airworthiness, I will have more intense and immediate concerns than hose fitting quality.

 

[Rich E.]

Scott: if I ever have a problem with my GT40's airworthiness, I will have more intense and immediate concerns than hose fitting quality.

Haha. That was funny.....

BTW, I went the cheap route with a track car a couple months back and tried the push on summit and fragola fittings because they were rated at "200 psi". That was complete BS as lap #3 heading towards the apex in turn 13, I started losing oil pressure. Turns out I blew a line off the fitting at the cooler. Oiled down the left side tires which made for an interesting slide.......Again BEWARE!

 

[Alex]

Haha. That was funny.....

BTW, I went the cheap route with a track car a couple months back and tried the push on summit and fragola fittings because they were rated at "200 psi". That was complete BS as lap #3 heading towards the apex in turn 13, I started losing oil pressure. Turns out I blew a line off the fitting at the cooler. Oiled down the left side tires which made for an interesting slide.......Again BEWARE!

I've heard some questionable things about Fragola fittings......