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PostPosted: Mon May 10, 2021 5:30 pm 
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Joined: Thu Oct 11, 2012 1:58 pm
Posts: 174
Location: Cochrane Alberta
So all of a sudden I started blowing burst discs in my compressor at just over 3000psi? any ideas and/or suggestions as to why and a fix for this? This compressor has successfully filled a 4500psi tank to approx 4100 or so psi so I know it does go much higher with its pressure.


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PostPosted: Mon May 10, 2021 6:46 pm 
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Joined: Fri Oct 20, 2017 8:29 pm
Posts: 458
Location: Southern Gulf Islands, Beautiful British Columbia, Canada
Hey Jaxcat,

I have an inkling .........

In addition to the burst disc, there should also be a small brass insert, which is easy to miss or misplace the first time you replace a blown burst disc. Without the insert, the disc will let go at a much lower pressure as more surface area is exposed. A photo showing the part can be vied here: https://www.joom.com/en/products/5bf7a9 ... 01012c8263

Cheers!

Avianmanor

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PostPosted: Mon May 10, 2021 7:17 pm 
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Joined: Thu Oct 11, 2012 1:58 pm
Posts: 174
Location: Cochrane Alberta
Thanks Avionmanor. I do have the insert in place.


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PostPosted: Mon May 10, 2021 7:43 pm 
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Joined: Fri Oct 20, 2017 8:29 pm
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Location: Southern Gulf Islands, Beautiful British Columbia, Canada
Hi Jaxcat,

Are you certain the insert is positioned correctly? I had exactly same problem until I got it right. Only other logical explanation would be defective discs or discs rated for a lower pressure.

Cheers!

Avianmanor

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PostPosted: Mon May 10, 2021 9:39 pm 
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Joined: Thu Oct 11, 2012 1:58 pm
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Location: Cochrane Alberta
Will try again but running out of discs. LOL.


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PostPosted: Tue May 18, 2021 9:36 pm 
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Joined: Sat Jul 11, 2020 5:36 pm
Posts: 72
Location: Chilliwack, BC
Are you reading the compressor pressure from only one gauge?

Perhaps the gauge is out of calibration?

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