Thank you for the response. Could you explain how 895 fpm across an opening gives a .05" s.p. differential? When you say "across" an opening, you are referring to a flow parallel to the opening as opposed to through the opening? I assume that the velocity of the air in the room will be...
Long time reader, first time poster.
I am trying to figure out what the airflow is required to maintain a specified differential pressure across an opening between two rooms.
They are basically trying to maintain one room slightly positive compared to the other. There is a large opening...