Product descriptions from the supplier
1. An Overview of Single Inlet Forward Centrifugal Blowers and fans
(1)Description
The scroll housing of single inlet centrifugal blower is open on one side and it always requires scroll housing. The characteristic features of this product series are high efficiency, a low noise level, relatively small air flow with a high increase in static pressure, robust design and space-saving application.
Single inlet forward centrifugal fans 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.
(2)Product Features
1. Material: Housing: galvanized sheet steel
Impeller: galvanized sheet steel
Rotor: coated in black
2. Bearings: Maintenance-free Ball Bearings
3. Direction of rotation: Clockwise rotation viewing rotor
4. Approval: All models have reached UL approval, CE approval and CCC approval
5. Motor protection: All models are fitted with an internal Thermal Overload Protection Device.
(3)Typical applications
Exhausting industrial processes, roof and building ventilation, cleanroom and other sensitive HEPA filtering application, laboratory and research facility ventilation, air conditioner, heat exchangers, in-line duct blowers, range hood, fire place inserts, humidifiers, dehumidifiers, hand dryers.
2. Brief Introduction of Single Inlet Forward Centrifugal Fan YWFF225
Material: Impeller: galvanized sheet steel
Rotor: Coated in black
Direction of rotation: Clockwise, seen on rotor
Type of protection: IP54 or IP44
Insulation class: B or F
Mounting position: Shaft horizontal or rotor on bottom; rotor on top on request(Any)Condensate discharges: Rotor-side
Mode of operation: Continuous operation (S1)
Bearings: Maintenance- free ball bearing
Motor protection: Design with thermal overload protector
Cable exit: variable
Product conforming to standard: CE
Approval: UL, CCC
3. performance parameters
| Model | Voltage V | Frequency Hz | Current A | Input Power W | Speed RPM | Max Air Flow m³/h | Capacitor μF | Noise dB(A) |
| YWFF4E225 | 230 | 50 | 1.5 | 270 | 1400 | 1550 | 10 | 52 |
| YWFF4D225 | 230/400 | 50 | 2.2 | 270 | 1400 | 1500 | / | 52 |
4. shape and the size of installation
5. air volume and static pressure curve
6. Our competitive Advantages
A) Cost advantage
We have our own workshop, metalprocess workshop and many other advanced machines. Key production parts are manufactured by ourselves.
B) Technological advantage
Our R&D center is provincial R&D Center. There are 4 Professor grade engineers and 6 senior engineers in our company.
C) Substantial experience and good service
We professionally produce motors and fans for more than 33 years. And we have done international trade for more than 10 years. So we can supply high quality products and services.
D) High cost performance
We have cost advantage, technological advantage and substantial experience. So our products have high cost performance. You can take the same cost purchase more better goods, or spend less for the same product.
7. Welcome to the world of motors and fans (Ningbo Lionball Ventilator Co., Ltd)
A)Have a glance at our Manufacturing facility
We have our own high speed punching machine, digital control machine, grinding macine, automatic coil winding machine, injection machine,and many other advanced equipments. Key production parts are manufactured by ourselves.
For more information, welcome to visit our company at any time.
B) Advanced quality control equipments
We have passed the ISO9001-2000 Certificate and BV supplier assessment certificates. We give a 100% full inspection from the incoming materials to the final finished products. The air flow testing machine, power testing machine, impeller balance testing machine, salt spray chamber, projection apparatus…
8. Approvals and certificates
Our companies is a leading manufactuer of fans and motors in China since 1980, we specialize in the fans and motors for more than 33 years. The following certificates are our latest version, including VDE approval in Germany, CE and RoHS in Europe,CCC certificates in China. We also have abtained many other honorable titles, such as supplier assessments certificates, high-tech enterprise, research& technology center…
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