Pressure losses of Fabric Ducting & Diffusers are very similar to those in the traditional ducting. Calculating a more
complex fabric distribution system is achieved using similar methods to those for sheet metal ducting. The minimum static pressure necessary
to keep the correct shape of a Fabric Duct or Diffuser depends upon the weight of the fabric used. A minimum of 20 Pa is sufficient
for light materials
and 50 Pa necessary for medium and heavy ones.
The pressure distribution along Fabric Diffusers is different from traditional sheet metal ducting because with declining
airflow longitudinal velocity decreases. To verify the design of your fabric distribution system, please contact us.