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CRAJ
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CRAJ

01/14/2016 6:13 AM

What is the value of Alpha in the formula, in Form T- 0240 section 3.3 (fluid) for calculating the mionimum safety distance in hydraulic pressure testing.
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PWSlack
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#1

Re: CRAJ

01/14/2016 6:42 AM

42

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lyn
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#2
In reply to #1

Re: CRAJ

01/14/2016 8:39 AM

Is that 42 parsecs?
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JavaHead
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#3

Re: CRAJ

01/14/2016 10:11 AM

To better assist us in answering your question, you should provide more information... you know... something like linking the standard you reference:

http://www.wermac.org/others/ndt_pressure_testing_safedistance.html

This way, you're more likely to get a decent answer.

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lyn
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#4
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Re: CRAJ

01/14/2016 10:32 AM

GIGO*.

*Garbage in-Garbage out!
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JavaHead
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#5
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Re: CRAJ

01/14/2016 11:02 AM

Looks like this isn't the first time its come up:

http://cr4.globalspec.com/thread/17841/safe-distance-for-pressure-testing

To the OP... contact Loyd's Register and ask them:

http://www.lr.org/en/contact-us/

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SolarEagle
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#6

Re: CRAJ

01/14/2016 12:54 PM

For fluids (3.3) it is :l = 0.15 x internal diameter x ((max workable distance) ^ 0.4) x ((test pressure / (cube root of density))^ 0.6
http://www.wermac.org/others/ndt_pressure_testing_safedistance.html

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