Maximizing CFM in Restricted AHU Footprints
Pharmaceutical manufacturing facilities require massive Air Changes Per Hour (ACH) to maintain cleanroom sterility, often recirculating up to 80% of the conditioned air. Delivering 100,000+ CFM through a single-inlet blower would require an impeller diameter too large to fit inside a standard mechanical room. Double Inlet Double Width (DIDW) centrifugal blowers solve this spatial constraint.
Symmetrical Airflow Dynamics
A DIDW blower is essentially two SISW impellers sharing a single backplate and shaft. By drawing air symmetrically from both sides of the scroll casing, the blower achieves twice the volumetric flow rate at the same static pressure, allowing engineers to design shorter, wider Air Handling Units (AHUs) that fit within standard commercial ceiling heights while maintaining low outlet velocities.