Could the difference in the older vs newer pipe be the materials or process used to make the pipe? Pure steel vs recycled-recycled ???? plus steel?
Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Tom Duross Sent: Monday, January 17, 2011 3:38 PM To: [email protected] Subject: RE: Air Releases in 2013 I think a sub-committee should be assembled to study this and present case evidence. It might take some time and cost $$ but if it involves a warm climate I'm in. Road trip! TD I think there is something to this new pipe-old pipe thing. I too, have seen 1942 pipe that looks pretty good and 1979 pipe that looks like something out of a heart attack victim. I could probably dig up pictures of both. I have my doubts that the water is the culprit. The pipe sees the same water so the older pipe should look even worse, but it doesn't. It actually looks better. I often wonder why they discontinued the ASTM A120 standard, which is what all the old pipe was built to. Whatever they did different for that standard may very well be the difference in what we are seeing corrosion-wise. Of course this is anecdotal and, as mentioned, to change the standards you need scientific studies. _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
