4-70 centrifugal fan

4-70 centrifugal fan

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4-70 centrifugal fan Product performance and technical parameters
1.4-70 type centrifugal fan structure type:
. 4-70 type centrifugal fan № 2.8 ~ 6 outlet position of 0 ° -225 °, at intervals of 45 °, transmission mode for the A -type transmission; № 7 ~ 12 outlet position of 0 °, 90 °, 180 °. , №. 7 ~ 12 transmission mode for the C -type transmission .
. 4-70 type centrifugal fan № 2.8 ~ 6 fans are allocated by the impeller, housing, air inlet and other units Direct motor and composition ;. № 7 ~ 12 addition to the above section, there are transmission parts and so on .
1 ) impeller by the 10 sheet backward arc type blade, curved front plate and the plate after the plate components. Are made of steel plate, and by the dynamic and static balance correction, air good performance, high efficiency and smooth operation.
2) The air inlet formed integrally mounted on the fan side. Parallel to the axial cross-section shape of the curve, the gas can smoothly enter the impeller, and the loss is small.
3) the transmission section 2 points from the spindle, bearing box, bearing, pulley components. 4-70 centrifugal fan Performance Parameters

Machine No. (No.)

Speed ​​(r / min)
Flow (m3/h)
Full pressure (pa)
Motor power (kw)
4-70 2.8A
2900
1330-2450
600-970
1.1
4-70 3A
2900
1715-3133
607-1209
1.1
1450
857-1567
252-302
0.75
4-70 3.2A
2900
1975-3640
800-1270
1.5
1450
991-1829
200-320
1.1
4-70 3.5A
2900
2723-4975
827-1640
2.2
1450
1362-2488
207-411
1.1
4-70 3.6A
2900
2930-5408
1090-1650
3
1450
1470-2710
280-410
1.1
4-70 4A
2900
4000-7427
1000-2150
5.5
1450

2032-3714

270-537
1.1
4-70 4.5A
2900
5788-10575
13366-2721
7.5
1450
3804-5288
342-680
1.1
4-70 5A
2900
7939-14506
1687-3359
11
1450
3970-7253
422-840
2.2
4-70 6A
1450
6859-12533
607-1209
4
690
4541-8298
266-530
1.5