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screen printing => Equipment => Topic started by: mimosatexas on May 21, 2018, 05:01:18 PM

Title: Air line exploded?
Post by: mimosatexas on May 21, 2018, 05:01:18 PM
So, been running our Sabre for a few weeks now.  Just a few minutes ago the little airline running to our Flashback just popped for lack of a better word.  Scared the crap out of me!  Photo is attached.  Must be a defect in the line since it wasn't even in use at the time and the spot where it popped is behind a little plastic protective sleeve about 2 feet off the ground.

Any quick way for me to fix this ASAP?  I'm thinking something like cutting out an inch or so and adding a little hose connector.  Where would I even go to get that locally?  Had to turn off the master air to the press to get the air to stop pouring out of the hole.  Haven't dug around much yet, but is there maybe some quick way of bypassing the flashback airline so I can just run our quartz to flash until I can fix it?
Title: Re: Air line exploded?
Post by: aauusa on May 21, 2018, 05:05:27 PM
go to an auto shop.  they have them for airbrakes and such.  we get all of our air stuff from local auto place.

but yes I would cut out an inch and reconnect with adapter
Title: Re: Air line exploded?
Post by: mimosatexas on May 21, 2018, 05:15:55 PM
Like an oreillys or autozone?

Anyone else had something like this happen randomly?  Any best practices related to this kind of stuff going forward?  We shut off the compressor nightly and break the safety lines to let all the air out of the machine etc.  Basically the stuff the tech told us to do...
Title: Re: Air line exploded?
Post by: aauusa on May 21, 2018, 05:32:00 PM
yes sir  autozone and the like is what you need.
Title: Re: Air line exploded?
Post by: screenxpress on May 21, 2018, 06:15:08 PM
you could probably limp by with a short piece of copper tubing and two hose clamps as a splice......all from oreillys
Title: Re: Air line exploded?
Post by: Frog on May 21, 2018, 07:02:10 PM
The purpose built connectors are barbed, and will make for a little surer fastening.
Title: Re: Air line exploded?
Post by: blue moon on May 21, 2018, 07:03:36 PM
home depot will carry the barbed connectors. take a piece of the hose and try them out. They are usually mounted on a display board so you ca check it out before buying.

pierre
Title: Re: Air line exploded?
Post by: ericheartsu on May 21, 2018, 08:49:12 PM
Grainger will also have what you need!
Title: Re: Air line exploded?
Post by: mimosatexas on May 21, 2018, 08:50:00 PM
Thanks. Anyone seen something like this before? Fluke I hope...
Title: Re: Air line exploded?
Post by: kingscreen on May 21, 2018, 10:33:34 PM
Each one of our Flashbacks have done this at least once. The line just gets too hot. Make sure it’s tucked away from the heat. Consider wrapping them with foil tape if it’s ongoing.  Keep a couple of these on hand. Cut out the burst and add one of these and you’re back in business.
Title: Re: Air line exploded?
Post by: kingscreen on May 21, 2018, 10:34:32 PM
You can get them at Home Depot.
Title: Re: Air line exploded?
Post by: mimosatexas on May 21, 2018, 11:00:35 PM
Thanks kingscreen. What's weird is the spot it happened is positioned basically mounted behind the vertical support. The plastic overing wasn't hot at all when I found the leak, though I guess a bunch of air rushing past it would cool it off.
Title: Re: Air line exploded?
Post by: kingscreen on May 22, 2018, 08:37:38 AM
Mine have all been closer to the elements. It is strange yours wasn’t. 
Title: Re: Air line exploded?
Post by: 3Deep on May 22, 2018, 10:57:38 AM
You guys have some great Auto parts stores and Home depots, cause here in my area of Alabama they don't carry none of that stuff, I've looked many times before :(
Title: Re: Air line exploded?
Post by: mk162 on May 22, 2018, 12:53:03 PM
can you replace the lines with a higher temp line?  I am sure mcmaster has stuff for this.
Title: Re: Air line exploded?
Post by: Frog on May 22, 2018, 01:30:57 PM
You guys have some great Auto parts stores and Home depots, cause here in my area of Alabama they don't carry none of that stuff, I've looked many times before :(

I find that incredibly hard to believe, as their use in automobiles has been common for years and years, with the addition of more vacuum lines. (Remember that rough idle due to a leak?) The "T" versions are also common in windshield wiper line circuits.
Title: Re: Air line exploded?
Post by: Zelko-4-EVA on May 22, 2018, 03:29:06 PM
can you replace the lines with a higher temp line?  I am sure mcmaster has stuff for this.

I looked at the freelin-wade website and it shows that as the temperature rises (150f on their chart) the max PSI goes down.  i didnt see any polyethylene tubing on their chart that could resist 100 psi at high temp

 https://www.freelin-wade.com/documents/Polyethylene-Liquiflex-POE.pdf (https://www.freelin-wade.com/documents/Polyethylene-Liquiflex-POE.pdf)

legris has some high temp tubing (available in metric size at first glance) that lists a high temp of 100c

they do exist, but insulating against the heat / using a better quality tubing might be a cheaper option