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Article: UL 971 gets revised: the standard covering underground piping makes systems more reliable.(Fuels & Fueling)
- Article from:
- National Petroleum News
- Article date:
- October 1, 2004
- Author:
CopyrightCOPYRIGHT 2004 M2Media360. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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FLEXIBLE THERMOPLASTIC PIPING HAS BEEN under attack for several years now, being cited for a number of failures in Florida and, to a lesser extent, other areas like Missouri, Louisiana, Texas and Alabama. In general, existing thermoplastic piping systems are safe and reliable under standard operating conditions. However, situations can arise through a lack of operator maintenance, which is all too common in the industry, or contaminated environmental conditions that impact the piping material causing it to swell. The swelling can lead to aesthetic problems or physical problems in the system resulting in a leak. Fortunately, in most cases the leaks have been confined to ...