Mar 8, 2019 #1 guanghui an Mechanical Nov 19, 2018 19 for negative pressure air pipe, how to calculate the wall thickness as per negative pressure value?
Mar 9, 2019 #2 GT-EGR Mechanical Nov 15, 2017 236 Are you referring to the gauge thickness for round ductwork under a certain negative pressure? The SMACNA duct construction manual provides the details on how to make that determination - which varies depending on a few other factors Upvote 0 Downvote
Are you referring to the gauge thickness for round ductwork under a certain negative pressure? The SMACNA duct construction manual provides the details on how to make that determination - which varies depending on a few other factors
Mar 10, 2019 Thread starter #4 guanghui an Mechanical Nov 19, 2018 19 Hi, GT-EGR, willard3，thanks for you reply, I will check the SMACNA duct construction manual Upvote 0 Downvote
