An imploding duct typically refers to a situation where a duct or pipe collapses or collapses inward due to external or internal pressure differences. The dangers of an imploding duct can vary depending on the circumstances and the materials involved, but generally, they include:
Below you'll see the test results from Imploding resistance of Nordfab's Quick-Fit (QF) and FB duct, with 0.7 and 0.9 mm thickness.
Please note that the imploding test for the 1,25mm duct was done using 3 ducts and a fan in our in-house test facility. The results should be seen as indicative and could be different when the ducts are used in a live production area.
To eliminate the danger of an imploding duct, it's crucial to conduct regular inspections and maintenance of ductwork to identify and address any issues before they lead to a collapse. Additionally, proper design and installation of duct systems should consider factors like pressure differentials, material strength, and support to minimize the risk of imploding ducts. At Nordfab, we recommend the following to avoid imploding duct:
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