Offshoreonly.com - How much PSI of air to test Manifolds?

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How much PSI of air to test Manifolds?

How much preasure to preasure test Gill Manifolds?

Jon

Re: How much PSI of air to test Manifolds?

Yea, I did mine at 30 lbs too, but I set it up with a valve, shut it and the air off and let them set overnight, was still at 30 the next day so I figure that was good.

Re: How much PSI of air to test Manifolds?

We don't recommend pressure testing Gil Manifolds with air.....it can be hazardous.

A few years ago a Gil customer tested his own manifolds by applying what he said was 10 psi to the manifolds. As it turned out this particular set had an invisible hairline crack under the powder coat, the entire face of the manifold blew out and struck the guy in the face and shoulder causing some pretty nasty looking injuries.

Gil (at least back then) always cautioned people to test with only water since it's not compressable. If you want to test them with air it is best to send them back to Gil where they can do the test in a caged water bath that is designed for this purpose without killing anybody.

I'd hate to hear someone got hurt doing this test so I figured I better chime in so I can sleep at night.

By the way Gil tested the manifolds at 10 psi during their manufacture process, at these intervals:
Raw Casting
After Core Plugs were welded in and
After powder coating and assembly

Jim
CP Performance
www.cpperformance.com

Re: How much PSI of air to test Manifolds?

CP thanks for the advice. I was already thinking that there may be a issue with this but had not really given it much past that. I sure will now!!!! What I may do is put the things outside and watch from the inside? Of course the problem with that is maybe they blow as I walk out..... I would think that it would not take much preasure at all (maybe 5psi or so) to find a leak if it was big....

Jon

Re: How much PSI of air to test Manifolds?

Yea, I should have thought of that having blown a 55 gallon drum to pieces with about 5 psi when I was a youngster. And I almost stuck it in the oven to warm it up. That woulda been a Darwin award for sure.