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Roots Blower

■ Standard Spec

Capacity Max. 186.2㎥/min
Total Head 102mmAq
Temperature Max. 120℃
Motor Max. 275kw
Connection 50 ~ 350mm

■ Feature

- with a consideration of varying use conditions, many models with a wide range of wind volume and wind pressure
  were standardized, and therefore, a full spectrum of selection is available upon varying needs
  (installation space and condition).
- elegant and compact exterior is well coordinated even within a limited space and enables easy installation and
  maintenance.
- the force of inertia of impeller during revolution is minimized for a mechanical contacting section, bearing part,
  grease lubrication and oil-forced lubrication method, for timing gear, oil-forced lubrication method was
  adopted to secure a long life-span for its long life-span there is no need to worry about long-hour operation.
- since specialist professional technicians and engineers assemble precisely processed timing gear and two-leaf
  type impeller with the largest volume estimated ratio for the maintenance of consistent impeller gaps during
  operation, this product demonstrates best efficiency all the time.
- precise balance of impeller and highly-accurate mechanic processing minimized noise and pulsatory motion.
- provision of uniformed gaps between casing and impeller, and impeller and impeller instead of having
  internal lubrication enables the supply of clean quality air that contains no oil content.

■ Application

- Water purification tank - Vacuum dehydration for paper factory
- Oxygen supply for fish farming - Carrying gas for chemical factory and ventilation for burning furnace

■ Selection chart

MODEL Dia RPM suction wind volume Qa(㎥/min) power output La(KW) Under Each discharging pressure
0.1kgf/㎤ 0.2kgf/㎤ 0.3kgf/㎤ 0.4kgf/㎤ 0.5kgf/㎤ 0.6kgf/㎤ 0.7kgf/㎤ 0.8kgf/㎤ 0.9kgf/㎤ 1kgf/㎤
Qa La Qa La Qa La Qa La Qa La Qa La Qa La Qa La Qa La Qa La
NS-50 50A 1450 1.88 1.0 1.64 1.4 1.47 1.8 1.30 2.2 1.15 2.6 1.02 0.3 0.89 3.5            
1750 2.44 1.1 2.20 1.6 2.02 2.1 1.86 2.6 1.70 3.1 1.57 3.6 1.46 4.1            
2000 2.9 1.3 2.65 1.9 2.48 2.4 2.33 3.0 2.17 3.5 2.04 4.0 1.93 4.6            
NS-65 65A 1450 2.39 1.2 2.05 1.7 1.81 2.3 1.59 2.8 1.42 3.4 1.28 4.1 1.17 4.9            
1750 3.09 1.4 2.74 2.0 2.50 2.6 2.28 3.3 2.11 4.0 1.97 4.8 1.85 5.9            
2000 3.65 1.5 3.31 2.2 3.07 2.9 2.85 3.7 2.68 4.4 2.54 5.2 2.43 6.1            
NS-80A 80a 1150 4.04 1.7 3.59 2.5 3.21 3.3 2.90 4.0 2.57 4.8 2.32 5.6 2.11 6.5            
1450 5.52 1.9 5308 3.0 4.70 4.0 4.38 5.1 4.07 6.2 3.82 7.3 3.62 8.4            
1750 7.01 2.3 6.57 3.6 6.19 4.8 5.87 6.1 5.56 7.4 5.30 8.7 5.11 10.0            
NS
NSW
NSG
NM
NMW
-100
100A 1150 5.44 2.0 4.99 3.1 4.61 4.1 4.28 5.2 3.98 6.3 3.72 7.4 3.49 8.5 3.30 9.6        
1450 7.28 2.4 6.85 3.8 6.47 5.1 6.13 6.4 5.83 7.8 5.57 9.2 5.32 10.7 5.12 12.2        
1750 9.13 2.8 8.69 4.5 8.31 6.2 7.98 7.9 7.67 9.5 7.41 11.2 7.20 12.9 6.97 14.6        
NS
NSW
NSG
NM
NMW
-125
125A 1150 14.05 4.1 13.22 6.6 12.49 9.1 11.86 11.6 11.45 14.1 10.93 16.6 10.51 19.1 10.20 22.0 9.98 25.5    
1450 18.45 5.0 17.58 8.1 16.93 11.2 16.28 14.4 15.74 17.5 15.30 21.0 14.87 24.0 14.54 27.5 14.32 31.0    
1750 22.79 6.0 21.92 9.7 21.27 13.4 20.62 17.1 20.08 21.1 19.64 25.1 19.32 29.1 19.00 33.5 18.67 38.0    
NS
NSW
NSG
NM
NMW
-150
150A 1150 23.6 6.1 22.4 10.1 21.3 14.2 20.5 18.2 19.8 23.0 19.0 27.0 18.5 34.0 17.8 38.0 17.4 43.0 16.9 49.0
1450 30.4 7.5 29.2 12.5 28.2 17.6 27.5 23.0 26.7 28.0 26.0 33.0 25.4 40.0 24.7 48.0 24.3 57.0 21.5 67.0
1750 37.8 9.8 36.6 16.3 35.6 23.0 34.8 29.0 34.1 35.0 33.3 43.0 32.8 49.0 24.7 48.0 24.3 57.0 21.5 67.0
NS
NSW
NSG
NM
NMW
-200S
200A 970 42.6 10.8 41.6 18.2 40.4 26 39.4 33 38.4 41 37.4 48 36.7 55 36.0 63 35.4 75    
1150 50.6 12.2 49.4 21 47.8 30 46.7 39 45.5 48 44.4 60 43.5 69 42.9 76 42.3 83    
1450 65.3 15.6 64.1 27 62.6 39 61.4 51 60.3 62 59.3 74 58.4 85 57.7 97 57.1 110    
NS
NSW
NSG
NM
NMW
-200L
250A 730 73.1 16 70.3 30 68.3 43 66.5 56 64.9 69 63.3 83 61.9 96 60.5 109 59.2 122    
880 89.8 20 87.2 36 85.1 52 83.2 68 81.6 84 80.1 100 78.6 116 77.3 132 75.9 148    
980 101.0 23 98.3 41 96.2 59 94.3 77 92.8 95 91.3 112 89.8 130 88.5 148 87.1 165    
NS
NSW
NSG
NM
NMW
-300
300A 730 109.1 25 105.0 45 102 64 99.5 83 97.1 103 95.2 122 93.5 141 92.0 160        
880 133.8 29 129.8 52 126.6 75 124 99 121.8 122 119.9 145 118.1 168 116.6 191        
980 150.2 33 146.2 58 163.0 84 140.5 110 138.3 136 136.3 160 134.5 187 133.0 213        
NS
NSW
NSG
NM
NMW
-350
350A 650 158.4 35 154.2 66 149.9 95 146.8 123 144.6 151 142.5 180 140.4 215 138.3 232        
700 172.1 40 168.0 71 164.0 130 161.0 135 158.9 163 156.9 194 154.9 225 152.9 254        
750 186.2 43 181.2 75 178.2 107 175.3 140 172.3 172 170.3 205 168.3 239 167.3 275        

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