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Model
Number
Motor
HP
Fan
RPM
CFM/StaticPressureinIncheswg
0 0.125 0.25 0.3 0.375 0.5 0.625 0.75 0.875 1
NYB-180-4 1/4
580
CFM 2478 2220 1933 1793 1424
BHP 0.12 0.14 0.14 0.15 0.14
640
CFM 2734 2500 2248 2142 1954
BHP 0.17 0.18 0.19 0.19 0.20
700
CFM 2991 2775 2552 2457 2308 1964
BHP 0.22 0.23 0.25 0.25 0.25 0.25
NYB-180-3 1/3 765
CFM 3268 3070 2873 2787 2655 2411 2050
BHP 0.28 0.30 0.32 0.32 0.33 0.33 0.32
NYB-180-5 1/2
820
CFM 3503 3318 3138 3059 2938 2732 2482 2010
BHP 0.35 0.37 0.39 0.39 0.40 0.41 0.41 0.38
880
CFM 3760 3587 3419 3351 3239 3049 2842 2580
BHP 0.43 0.45 0.47 0.48 0.49 0.50 0.51 0.50
NYB-180-7 3/4
940
CFM 4016 3854 3696 3633 3534 3358 3178 2971 2706
BHP 0.53 0.55 0.57 0.58 0.59 0.60 0.61 0.62 0.61
1005
CFM 4294 4142 3993 3935 3847 3685 3518 3350 3148 2894
BHP 0.64 0.67 0.69 0.70 0.72 0.73 0.74 0.75 0.75 0.75
NYB-240-3 1/3
425
CFM 4375 3869 3244 2885
BHP 0.21 0.23 0.24 0.23
475
CFM 4890 4449 3933 3701 3222
BHP 0.29 0.32 0.33 0.34 0.33
NYB-240-5 1/2
500
CFM 5147 4728 4249 4047 3650
BHP 0.34 0.37 0.39 0.39 0.39
545
CFM 5610 5226 4803 4621 4336 3641
BHP 0.44 0.47 0.49 0.50 0.51 0.49
NYB-240-7 3/4
575
CFM 5919 5555 5163 4993 4731 4178
BHP 0.51 0.55 0.58 0.58 0.59 0.59
625
CFM 6434 6098 5751 5598 5361 4947 4383
BHP 0.66 0.70 0.73 0.74 0.75 0.76 0.75
NYB-240-10 1
650
CFM 6691 6368 6041 5894 5669 5283 4784 4053
BHP 0.74 0.78 0.81 0.83 0.84 0.86 0.85 0.80
685
CFM 7052 6745 6440 6304 6095 5731 5332 4807
BHP 0.86 0.91 0.94 0.96 0.98 0.99 1.01 0.99
NYB-240-15 1
1
⁄2
730
CFM 7515 7227 6941 6825 6629 6294 5949 5524 5013
BHP 1.05 1.09 1.13 1.15 1.17 1.19 1.21 1.21 1.19
785
CFM 8081 7813 7547 7440 7271 6966 6649 6327 5911 5454
BHP 1.30 1.35 1.40 1.41 1.44 1.47 1.49 1.51 1.51 1.48
Performance certified is for installation type A: free inlet, free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects of a
birdscreen.
Performance Data
Model NYB-180 & NYB-240
0 1000 2000 3000 4000 5000 6000 7000
0
50
100
150
200
250
300
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0 500 1000 1500 2000 2500 3000 3500 4000 4500
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Static Pressure in. wg
cfm
NYB-180
m
3
/hr
Static Pressure Pa
RPM
HP
Density 0.075 lb/ft³
3/4 hp
1/2 hp
1/3 hp
1/4 hp
1005
940
880
820
765
700
640
580
0 2 4 6 8 10 12
0
50
100
150
200
250
300
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0 1 2 3 4 5 6 7 8
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Static Pressure in. wg
cfm x 1000
NYB-240
m
3
/hr x 1000
Static Pressure Pa
RPM
HP
Density 0.075 lb/ft³
1 1/2 hp
3/4 hp
1/3 hp
1/2 hp
1 hp
785
730
685
650
625
575
545
500
475
425