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Beijing
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2021-08-13 19:33
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Company Profile
Ningbo Longwell Electric Technology Co., LtdBy certification [File Integrity]
Contact:nblangwei(Mr.)
Email:
Telephone:
Phone:
Area:Beijing
Address:Beijing
Website:http://www.longwellfans.com/ http://nblangwei.e-sanhai.com/
Model no.: EC Backward Curvec centrifugal fans with Brackets
Impeller SIZE: 133mm - 630mm (diameter ) with brackets
Features:
Motor: EC Outer Motor
Supply Voltage: 1~230v, 50/60Hz
Impeller Material: Propylene with Glass-Fiber / Galvanized Sheet steel / Sheet aluminium.
Bearings: Maintenance-free ball bearings
Impeller tye: Backward curved
Rotation: C.C.W, See on the leads
Operating Temp: -25°C~+60°C
Type of protection: IP55, IP54
Certification: CE, UL, RoHS, CCC, ETL, etc
Technical Features: control input 0-10v vdc / pwm speed control, tech output, locked rotor protection, reverse polarity protection, over-voltage protection, soft start.
Model |
Bearing |
Rated |
Frequency |
Rated |
Rated |
Rated |
Air Flow |
Noise |
(B/S) |
(V) |
(Hz) |
(A) |
(W) |
(RPM) |
m³/h |
dBA) |
|
LWBE133mm - PS |
Ball |
230 |
50/60Hz |
0.23 |
30 |
3800 |
260 |
63 |
LWBE175mm - PS |
Ball |
230 |
50/60Hz |
1.2 |
170 |
4760 |
885 |
71 |
LWBE190mm - PS |
Ball |
230 |
50/60Hz |
1.3 |
170 |
4100 |
945 |
72 |
LWBE220mm - PS |
Ball |
230 |
50/60Hz |
1.27 |
168 |
3250 |
1150 |
70 |
LWBE225mm - PS |
Ball |
230 |
50/60Hz |
1.26 |
168 |
2950 |
1190 |
70 |
LWBE250mm - PS |
Ball |
230 |
50/60Hz |
1.27 |
169 |
2570 |
1435 |
71 |
LWBE250mm - PS-08 |
Ball |
230 |
50/60Hz |
2.5 |
520 |
3650 |
2400 |
85 |
LWBE250mm - PS-04 |
Ball |
230 |
50/60Hz |
3.47 |
803 |
3530 |
2900 |
75 |
LWBE250mm - PT-05 |
Ball |
400 |
50/60Hz |
1.4 |
840 |
3750 |
2850 |
75 |
LWBE280mm - PS-01 |
Ball |
230 |
50/60Hz |
1.7 |
245 |
2500 |
1700 |
75 |
LWBE280mm - PS-04 |
Ball |
230 |
50/60Hz |
3.1 |
700 |
3270 |
3750 |
85 |
LWBE280mm - PT-03 |
Ball |
400 |
50/60Hz |
1.86 |
1140 |
3270 |
4150 |
74 |
LWBE310mm - PS-01 |
Ball |
230 |
50/60Hz |
1.87 |
250 |
2230 |
2100 |
69 |
LWBE310mm - PS-02 |
Ball |
230 |
50/60Hz |
3.3 |
410 |
2000 |
3400 |
69 |
LWBE310mm - PS-03 |
Ball |
230 |
50/60Hz |
3.1 |
700 |
2960 |
3950 |
85 |
LWBE310mm - PT-02 |
Ball |
400 |
50/60Hz |
2.8 |
1650 |
3160 |
4900 |
82 |
LWBE355mm - PS-01 |
Ball |
230 |
50/60Hz |
2.3 |
270 |
1550 |
2700 |
70 |
LWBE355mm - PT-02 |
Ball |
400 |
50/60Hz |
1.8 |
1100 |
2200 |
6360 |
73 |
LWBE355mm - PS-05 |
Ball |
230 |
50/60Hz |
3.1 |
700 |
2200 |
4900 |
85 |
LWBE355mm - PT-03 |
Ball |
400 |
50/60Hz |
5.1 |
3250 |
3200 |
8350 |
86 |
LWBE355mm - PT-04 |
Ball |
400 |
50/60Hz |
2.7 |
1700 |
2530 |
6600 |
75 |
LWBE400mm - PS-02 |
Ball |
230 |
50/60Hz |
1.65 |
370 |
1500 |
3920 |
67 |
LWBE400mm - PS-05 |
Ball |
230 |
50/60Hz |
3.1 |
700 |
1800 |
6300 |
85 |
LWBE400mm - PT-03 |
Ball |
400 |
50/60Hz |
5 |
3350 |
2640 |
9100 |
86 |
LWBE450mm - PS-01 |
Ball |
230 |
50/60Hz |
4.38 |
562 |
1300 |
5500 |
74 |
LWBE450mm - PT-03 |
Ball |
400 |
50/60Hz |
4.5 |
2950 |
2150 |
10600 |
83 |
LWBE500mm - PT-02 |
Ball |
400 |
50/60Hz |
5.75 |
3460 |
1830 |
12660 |
86 |
LWBE560mm - PT-02 |
Ball |
400 |
50/60Hz |
5.5 |
3530 |
1830 |
13500 |
85 |
LWBE630mm - PT-02 |
Ball |
400 |
50/60Hz |
5.7 |
3760 |
1400 |
17000 |
79 |
Advantages
• Very high degree of efficiency UP to 90%
• Integrated controller (continuous control)
• Additional functions (pressure control, airflow, speed, temperature, air quality, etc.)
• Smaller-sized motor for the same level of performance
• Less power consumption
EC-fans are up to 30% more efficient than AC-fans
EC motor efficiency ranges between 80% and 90%. To put this into perspective, a three phase induction motors maximum efficiency is at 75%, and PSC (permanent split capacitor) motors have a maximum efficiency of between 60% and 70%.
EC-fans have a longer lifespan
EC motors’ high efficiency also means that the motors run "cool", and dramatically reduce the amount of waste heat produced. Reduced waste heat at the evaporator motor level also typically results in reduced operation at the compressor level, which allows further energy savings. Further, running cooler improves the life of highly loaded motor parts like windings and bearings.
EC-fans have a wider operating range
EC motors also have a wider operating range than traditional induction motors, which means that one ECM motor can replace a number of induction motor models. In this case, the number of models required by a typical customer is significantly decreased, which decreases and simplifies inventory. This is the main reason why ECM product lines usually include less motor models than their induction. counterparts.
Applications
• EC fan array
• Electronic cabinet cooling
• Clean room modules
• Heat exchangers
• Air filtration systems
• Military HRAC
• Pharmaceutical/biological control systems
• Computer room air conditioning (CRAC) systems
• Air-handling units
http://www.longwellfans.com/