Technical Description of T35-11 Low-Noise Axial Fan:

The primary purpose of the T35 axial fan is to replace the 30K4 model. After analyzing and comparing the Soviet Union's product introduced in the 1950s with similar foreign products, the fan's airfoil shape was determined through model testing research. A cylindrical hub structure was adopted, and the electric motor underwent a redesign. Structurally, flow losses were reduced, resulting in an increase in fan efficiency. Specifically, the efficiency was improved to 77% when calculated based on the circular outlet area and to 89.5% when calculated based on the outlet ring area. Additionally, the noise level was reduced by 3.6 dB in terms of the A-weighted sound pressure level.