Description
Longwell Cross Flow Fans
About Us
Functional Features
Product Selling Points
* High-Quality Performance: Rigorously tested to ensure stable operation under various working conditions, providing reliable performance.
* User-Friendly: Simple operation interface and maintenance methods save time and labor costs for users.
* Environmentally Friendly and Energy-Saving: Compliant with national energy-saving standards, saving costs for businesses while contributing to environmental protection. Choose our efficient centrifugal fan to bring fresh air and a comfortable experience to your work and living environment, enhancing the efficiency and quality of life in your space!
Product Description
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Type
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AC Cross Flow Fan
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DC Cross Flow Fan
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EC Cross Flow Fan
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Diameter range(mm)
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30-150
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30-150
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80-150
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Length range(mm)
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90-1200
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90-1300
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350-1200
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Voltage(V)
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115/230
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12/24
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230
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Power range(W)
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8-210
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/
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16-450
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Speed range(RPM)
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800-3000
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800-2400
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800-1500
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Air volume(m³/h)
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23-4000
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27-2500
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450-3700
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Number of motors
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single/double
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single/double
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single
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Motor type
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Ac shaded pole motor
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Three-phase brushless
DC motor
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EC external rotor motor
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Housing material
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Galvanized steel sheet
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Steel + Aluminum alloy
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Steel + Aluminum alloy
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Blade material
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Aluminium alloy
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Aluminium alloy
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Aluminium alloy
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Insulation class
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B/F/H
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B
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B
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Bearing type
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Ball bearing
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Ball bearing
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Ball bearing
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Operating temperature
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-25℃- +60℃
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-25℃- +60℃
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-25℃- +60℃
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|
Control mode
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contactor and inverter
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potentiometer or PWM
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Built-in controller, intelligent control
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Speed:1700RPM
Air volume:113-454m³/h
Speed:1350RPM
Air volume:550-1300m³/h
Types and Sizes of Cross-Flow Fans
DC Cross-Flow Fan Diameter: 30mm – 150mm, Length: 90mm – 1300mm
EC Cross-Flow Fan Diameter: 80mm – 150mm, Length: 350mm – 1200mm
Cross-Flow Impeller Impeller Diameter: 30mm – 150mm, Impeller Length: 115mm – 1050mm, Number of Blades: 20 – 50
2. Commercial Spaces: Enhancing air circulation in malls, offices, and large public areas.
3. Residential HVAC Systems: Supporting heating, ventilation, and air conditioning systems in homes.
4. Agricultural Applications: Maintaining optimal temperature and humidity in greenhouses.
5. Automotive Industry: Used for cooling in vehicle engines and cabins.
6. Electronics Cooling: Effectively dissipating heat from electronic devices and systems.
7. Air Purification Systems: Facilitating the circulation of purified air in clean rooms and laboratories.
These fans are valued for their reliability, low noise operation, and energy efficiency, making them suitable for a broad range of environments.
Cross Flow Fan
* A cross flow fan is a type of axial fan that uses a unique design with a straight-through airflow path, making it efficient for applications requiring high volume and low pressure.
2. How does a cross flow fan differ from other types of fans?
* Cross flow fans differ by their unique impeller design that allows for a straight-through airflow, which is different from the radial flow in centrifugal fans or the parallel flow in axial fans.
3. What are the typical applications of cross flow fans?
* Cross flow fans are typically used in HVAC systems, air curtains, drying processes, and any application requiring large volumes of air at low pressure.
4. How do I calculate the airflow rate for a cross flow fan?
* The airflow rate can be calculated using the formula: Q = 3600 × (CFM) / (π × D² × 0.8086), where Q is the volumetric flow rate, CFM is the cubic feet per minute, and D is the impeller diameter.
5. How do I select the right motor for a cross flow fan?
* The selection of the motor should consider the required power, speed, and voltage, as well as compatibility with the fan’s design and the application’s demands.
6. What maintenance is required for a cross flow fan?
* Regular maintenance includes cleaning the fan and impeller, checking for wear and tear, lubricating moving parts, and ensuring the motor and electrical connections are in good condition.
7. Can cross flow fans be used in environments with high humidity or corrosive gases?
* Special materials and coatings can make cross flow fans suitable for high humidity or corrosive environments, but it’s essential to consult with the manufacturer for the right specifications.
8. How do I ensure the safety of a cross flow fan during operation?
* Safety can be ensured by following the manufacturer’s guidelines, installing guards to prevent contact with moving parts,and using appropriate electrical protection.
9. What are the common issues that can affect the performance of a cross flow fan?
* Common issues affecting performance include debris accumulation, worn-out bearings, misalignment, and incorrect motor operation.
10. Are there energy-efficient models of cross flow fans available?
* Yes, energy-efficient cross flow fans are available, often featuring high-efficiency motors and aerodynamically optimized designs to reduce energy consumption.
