Negotiable
The date of payment from buyers deliver within days
Beijing
Long-term effective
2021-09-29 02:31
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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.sdxdfl.com/
Model no.: EC Backward Curvec centrifugal fans with 115V / 230v / 380v Series
Impeller SIZE: 175mm - 400mm (diameter )
Features:
Motor: BLEC Motor
Bearing Type: Ball Bearing
Impeller Material: Propylene with Glass-Fiber / Galvanized Sheet steel / Sheet aluminium.
Operating Temp: -25°C~+60°C
Type of protection: IP54, IP44
Certification: CE, UL, RoHS, CCC, ETL, etc
Model |
Bearing |
Rated |
Rated |
Rated |
Rated |
Rated |
Air Flow |
Air |
Noise |
(B/S) |
(V) |
(V) |
(A) |
(W) |
(RPM) |
m³/h |
Pa |
dBA) |
|
LWBE3G133mm |
Ball |
230 |
200-277 |
0.35 |
45 |
4480 |
270 |
400 |
73 |
LWBE3G175mm |
Ball |
230 |
200-277 |
0.6 |
78 |
4070 |
660 |
510 |
73 |
LWBE3G190mm |
Ball |
230 |
200-277 |
0.56-1.18 |
73-149 |
3320-4050 |
722-750 |
510-690 |
70-78 |
LWBE3G220mm |
Ball |
230 |
200-277 |
0.56-1.18 |
65-157 |
2500-3510 |
920-963 |
460-690 |
71-75 |
LWBE3G225mm |
Ball |
230 |
200-277 |
0.6-1.14 |
80-150 |
2500-3010 |
1100-1226 |
430-660 |
69-79 |
LWBE3G250mm |
Ball |
230 |
200-277 |
0.4-3.2 |
60-485 |
2150-3750 |
975-2124 |
320-1150 |
65-86 |
LWBE3G280mm 230V |
Ball |
230 |
200-277 |
1-4.3 |
135-690 |
2325-3000 |
1550-3050 |
580-800 |
75-82 |
LWBE3G280mm 380V |
Ball |
3~380 |
/ |
1.1 |
780 |
2850 |
2900 |
900 |
82 |
LWBE3G310mm 230V |
Ball |
230 |
200-277 |
1.07-3 |
134-445 |
1770-2600 |
2000-2750 |
320-750 |
65-79 |
LWBE3G310mm 380V |
Ball |
3~380 |
/ |
1.64 |
980 |
2600 |
4750 |
850 |
74 |
LWBE3G355mm 230V |
Ball |
230 |
200-277 |
1.4-2 |
240-330 |
1750-1970 |
2800-3100 |
580-700 |
73-77 |
LWBE3G355mm 380V |
Ball |
3~380 |
/ |
1.63 |
990 |
2100 |
5300 |
650 |
79 |
LWBE3G400mm 230V |
Ball |
230 |
200-277 |
1.5 |
330 |
1430 |
3600 |
480 |
69 |
LWBE3G400mm 380V |
Ball |
380 |
/ |
1.22 |
725 |
1550 |
5800 |
550 |
73 |
LWBE3G450mm |
Ball |
380 |
/ |
1.67 |
1000 |
1450 |
7400 |
580 |
73 |
LWBE3G470mm |
Ball |
230 |
200-277 |
0.85 |
185 |
1100 |
3800 |
340 |
69 |
LWBE3G500mm |
Ball |
380 |
/ |
1.46 |
870 |
1100 |
7800 |
450 |
71 |
EC-fans are up to 30% more efficient than AC-fans
EC-fans are up to 30% more efficient than AC-fans and the most efficient while partly loaded
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%. By using an EC motor the payback is instant and can provide cost effective savings over its lifetime. You can see the example of efficiency and energy saving features demonstrated here.
EC-fans are easily controllable (0-10 V)
In terms of speed control and features, because the motor's operation is controlled by software, EC motors allow customers to optimize and integrate the motor, fan and controller with the application, and to include features like data communications, constant volume control, variable speed, etc.
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/