it is UL that dictates the test pressures as part of their listing.
That is a leakage test that is held for one minute. There is also a
hydrostatic test at 700 psi for one minute regarding rupture.
Although I agree with the stated concerns and likelihood of successful
operation with the standard pressure rating, I wouldn't go there since
it is an explicit violation of NFPA 13. It's like putting a standard
tire with a S speed rating on your Viper (or Ford Cobra if you have
real money) instead of a Y rating. It will probably work but if (or
when) it blows out, guess who gets to pay for the new car?
Roland
On Nov 12, 2010, at 9:13 AM, Thom wrote:
If I was going to install std. dry pend I would use ones by a mfg
that tests
them to 500Psi, like Globe GL series
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