1. The radial gap value of the fire discharge shell and the impeller should be uniform, and the radial unilateral gap value: When the machine number is ≤NO.10, the gap value is ≥3.5mm;
2. The radial unilateral gap imported by the inlet of the centrifugal fired fired air inlet and the wheel wheel cover should be uniform.The overlapping length should be 0.8%to 1.2%of the diameter of the impeller.
3. The technology of paint paint on the inside and outside complies with the regulations of JB/T 6886.The paint selected by the ventilator is basically unchanged after the ventilator is transported at 280 ° C.
4. The rotating parts of the fire foam fan and the possible part of the loose are must be firm and reliable, and there are anti -loose measures.
5. Rotating transmission parts such as the transmission group, the wheel, and the shaft should be equipped with a protective cover.
6. Must be a device recognized by the fire department where the project is located.
7. Other requirements must be related specifications.