A.10.10.2.2.1 Compressed air or compressed gas should never be used to test systems with rigid thermoplastic pipe. (13, 2007)
A.6.4.2 Testing of a system can be accomplished by pressurizing the system with water and checking visually for leakage at each joint or coupling unless specifically allowed by the manufacturer(s) of both the pipe and the fittings in their installation instructions. Where pressure testing systems have rigid thermoplastic piping, such as listed CPVC, or flexible piping, such as listed polybutylene, the sprinkler system should be filled with water. The air should be bled from the highest and farthest sprinklers before the test pressure is applied. Compressed air or compressed gas never should be used for pressure testing CPVC piping. Testing with air pressure is permitted for polybutylene piping where conducted in accordance with the testing procedures of 16.2.2.1 of NFPA 13, Standard for the Installation of Sprinkler Systems.(13R, 2007) nothing has changed. Garth a fitter ----- Original Message ----- From: "Jim Kettler" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, May 03, 2007 2:05 PM Subject: Air Testing of CPVC Piping > We've recently heard from quite a few contractors regarding air testing of > CPVC piping on our residential systems. All of the information I have > indicates that air testing of CPVC is not permitted. We've never required > testing beyond the parameters of 13D. > > My question: what has prompted the sudden interest? Has something changed or > is there new information on the CPVC piping? > > Jim Kettler > Fire Marshal > Buckingham, PA > > > > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
