Duct Friction Loss Calculator）、金属薄板管道摩擦损失计算器（heet Metal Duct Friction Loss Calculator...
Size both round and rectangular ductwork with the ease of a traditional Ductulator. Adjust the airflow, diameter, width or height sliders with your thumbs. Get maximum precision by entering numbers directly into the the calculator. Lock friction rate, diameter or width or height to make the ca...
Ver 1.6: When you toggle between the velocity/friction loss input in the "Size By Airflow" mode or the airflow/velocity input in the "Size By Dimensions" mode, it will retain the values instead of resetting to 0 as it did previously. Ver 1.5: A couple of additional duct material typ...