Mar 8, 2019 #1 guanghui an Mechanical Joined Nov 19, 2018 Messages 19 Location CN for negative pressure air pipe, how to calculate the wall thickness as per negative pressure value?
Mar 9, 2019 #2 GT-EGR Mechanical Joined Nov 15, 2017 Messages 236 Location US 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 #3 willard3 Mechanical Joined Jan 14, 2006 Messages 1,437 Location US SMACNA Upvote 0 Downvote
Mar 10, 2019 Thread starter #4 guanghui an Mechanical Joined Nov 19, 2018 Messages 19 Location CN Hi, GT-EGR, willard3,thanks for you reply, I will check the SMACNA duct construction manual Upvote 0 Downvote