The quality of our shaded pole ac motor, duct centrifugal motor, EC/DC Centrifugal Fan has been steadily improving since we entered the market, and they are increasingly affirmed and favored by new and old customers. We treat all collaborators as our own partners, and our families treat each other sincerely. Our company's development goal is to become an industry leader. We put forward the strategic concept of specialization and internationalization.
Forward Centrifugal Fan YWFF250
Production Description
Single Inlet Forward Centrifugal fans and blowers are compact units that can be used to either pressurize or evacuate in air moving applications. The impellers are permanently mounted to the external rotors for ease of installation and maintenance-free operation. These units may be mounted in any orientation to provide maximum airflow in minimum areas.
(1)YWF External Rotor Centrifugal Fans are divided into forward centrifugal fan and backward centrifugal fan according to curved blades, which have compact structure, convenient installation, credible running, little noise, energy saving and high efficiency.
(2) Several speed ranks, adapt to both frequency conversion and voltage transformation speed changing active. Our products are widely used in duct fans, roof ventilator, air purifying equipment, air conditioning, and household appliances, etc.
(3)The voltage of the single phase motor is 220V, 50/60 Hz, and the voltage of three phase motors is 380V, 50/60Hz. We can also supply other fan motors with different voltages and frequencies according to clients' requirement.
(4)The safety grade of this series is IP54, and the insulation classes are class B and class F.
(5) The applicable ambient temperature of the fan motors used in condenser is from -30℃~60℃.
(6)The average service life of motors is over 30,000 hours.
(8) Our products have gotten UL approval, CE approval and CCC approval.
(9) Product Features
① —Material: Housing: galvanized sheet steel
Impeller: galvanized sheet steel
Rotor: Coated in black plastic
② Bearings: Maintenance- free ball bearings
③ Direction of rotation: Clockwise, seen on rotor
④All models have reached UL approval, CE approval and CCC approval
⑤The type of protection is IP54. All models are fitted with an internal Thermal Overload Protection Device
⑥ Mounting position: Shaft horizontal or rotor on bottom; rotor on top on request (Any)
⑦Insulation class is class B or class F
Performance Parameters
|
Model |
V |
Frequency HZ |
Current A |
Input Power KW |
Speed RPM |
PA |
Max Air Flow M³/H |
Capacitor μF |
Noise dB(A) |
Curve |
|
YWFF4E250 |
230 |
50 |
3.3 |
0.75 |
1300 |
0 |
2450 |
16 |
76 |
① |
|
YWFF4D250 |
230△/400Y |
50 |
3.0/1.7 |
0.8 |
1350 |
0 |
2600 |
/ |
76 |
② |
|
YWFF6E250 |
230 |
50 |
1.6 |
0.29 |
910 |
0 |
1700 |
5 |
65 |
③ |
|
YWFF6D250 |
230△/400Y |
50 |
0.75/1.3 |
0.27 |
900 |
0 |
1700 |
/ |
65 |
④ |
shape and the size of installation
Air volume and static pressure curve
Product feature and application
(1) Product feature:
● Compact structure
● Specialized design
● Refined process control
● Simple Installation
● High efficiency and low noise
● Long service life
(2) Application
● Condenser
● Evaporator
● Pipe fan
● Roof ventilator
● Heat dissipation and ventilation
Illustration of Models
YWF—F—2—E—250
① ② ③ ④ ⑤
①YWF: External Rotor Centrifugal Fan
②F: Forward
B: Backward
D: Double Inlet
③(2,4,6):Pole of Motor
④E: Single Phase Capacitor Operation
D: Three Phases Asynchronous Operation
⑤250: The Diameter of inlet
Company Profile
Founded in 1980, Ningbo lionball Ventilation Co., Ltd. is a key high-tech enterprise of the National Torch Program, which integrates product research and development, manufacturing and sales.Our company has passed ISO9001 quality management system certification and ISO14001 environmental management system certification.
"Lionball" brand after 40 years of precipitation, was awarded as a well-known trademark in Zhejiang Province.Our fan and motor products in the international industry has a high reputation and good reputation.Products are exported to the United States, Germany, Italy and other European and American countries as well as Brazil, Russia, other emerging industrial countries and other parts of the world.The main partners are Emerson, Panasonic and other world top 500 industry famous companies.The main products have passed the German VDE, the United States UL, Europe CE and RoHS and China CCC certification.
Lionball team
We relentlessly pursue technological innovation to upgrade our Big Air Flow 40000m³ /H Axial Air Cooler, Evaporative Cooling Fan in order to gain a place in the fierce market competition. A win-win situation is our unremitting pursuit and eternal purpose. We strive to rely on innovation to win, continue to expand our own brand influence and strengthen the advantages of international cooperation.
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