133mm High Airflow EC Dual-inlet Forward Curved Centrifugal Fan for FCUs
Overview of Belmont 133mm EC Centrifugal Fan
Modern Fan Coil Units (FCUs) demand compact, energy-saving, stable ventilation components to deliver consistent indoor air comfort. The Belmont 133mm EC Dual-inlet Forward Curved Centrifugal Fan is specially engineered as an OEM fan solution for FCUs, commercial air conditioning and air purification equipment.
Different from traditional AC centrifugal blowers, this dual-inlet forward curved fan adopts electronically commutated (EC) motor technology. It achieves stepless speed adjustment, lower power consumption and stable operation under wide temperature conditions. With high airflow capacity within a compact scroll housing, it becomes the preferred ventilation component for space-limited HVAC modules.
Core Technical Specifications
Belmont 133mm dual inlet centrifugal fan adopts galvanized steel forward curved impeller and maintenance-free ball bearing. Complete technical parameters are listed below:
| Item | Parameter |
|---|---|
| Motor Type | EC |
| Rated Voltage | 220/230 VAC, 50/60 Hz |
| Rated Power Input | 200W |
| Rated Current | 1.4 A |
| Max Speed | 2130 RPM |
| Maximum Air Volume | 1001 m³/h |
| Protection Class | IP44 |
| Insulation Class | F |
| Operating Temperature | -20℃ ~ +60℃ |
| Impeller Material | Galvanized steel sheet |
| Rotor Material | Carbon Steel |
| Bearings | Maintenance-free ball bearing |
| Certifications | CE, CCC |
All performance data is based on official test reports. We provide complete fan performance curve for system matching design.
Key Advantages of Dual-inlet Forward Curved EC Fan
1. Dual-inlet Design Delivers Higher Airflow
The dual-inlet air intake structure allows air to flow into the impeller from both sides. Compared with single-inlet fans of the same outer size, it provides larger airflow output, perfectly matching the air supply requirements of medium and large fan coil units.
2. EC Energy Saving Motor with Precise Speed Control
The integrated EC brushless motor supports continuous variable speed regulation. It can cooperate with BMS, thermostat and air volume control system. Under partial load operation commonly seen in FCU systems, EC fans save up to 30%~50% energy compared with conventional AC fans.
3. Low Maintenance & Long Service Life
Equipped with maintenance-free ball bearings. No regular lubrication is required during the service cycle, reducing after-sales maintenance costs for FCU manufacturers and terminal property operators.
4. Wide Ambient Temperature Adaptability
Stable running from -20℃ to +60℃. Suitable for commercial buildings, shopping malls, hotels and special air-conditioning environments with fluctuating operating temperatures.
5. Global Certification for Export
CE and CCC certifications are available. The fan meets the technical standards of European HVAC market and domestic industrial equipment regulations, convenient for global equipment exporters.
Main Application Scenarios
The Belmont 133mm EC dual-inlet forward curved centrifugal fan is widely matched to:
- Fan Coil Units (FCUs)
- Commercial air conditioning indoor modules
- Air purification and fresh air handling equipment
- Compact air handling units
- Industrial cabinet ventilation & cooling systems
How to Select the Right Centrifugal Fan for FCU Projects
When purchasing FCU supporting centrifugal fans, HVAC engineers and equipment manufacturers need to confirm core conditions:
- Required airflow and static pressure of the FCU air duct system
- Installation space size of the fan compartment
- Power supply specification (voltage & frequency)
- Control mode: fixed speed or variable speed
- Ambient temperature of the operating environment
- Certification requirements for target sales markets
If you do not have clear matching parameters, send your FCU structure drawing and airflow requirements to our technical team. We will provide professional fan selection suggestion and performance curve reference.
Frequently Asked Questions (FAQ)
Q1: Can this 133mm EC centrifugal fan run continuously 24 hours?
A: Yes. The fan uses high-quality maintenance-free ball bearings and robust metal impeller. It supports long-term continuous operation under rated working conditions, suitable for all-day running fan coil systems.
Q2: What control signal does the EC motor support?
A: The EC motor supports standard speed control signal. Contact Belmont technical support to confirm compatibility with your controller.
Q3: Can I get samples for testing before bulk order?
A: Yes. Belmont supports sample testing for HVAC manufacturers and engineering companies. We can provide samples, test data and installation dimension drawings.
Q4: Is customized service available?
A: We support parameter adjustment, wiring modification and other minor customization according to mass order quantity. Discuss your customized demands with our sales team.
Get Datasheet, Performance Curve & Quotation
If you are an FCU manufacturer, HVAC system integrator or ventilation equipment purchaser, feel free to contact Belmont for full technical documents, performance curve, 3D drawings and competitive factory price.
WhatsApp: 0086-13328176208
Email: sales@belmont-tech.com
Product Page: https://www.belmont-fan.com/133mm-High-Airflow-Capacity-Dual-inlet-Forward-Curved-Centrifugal-Fan-For-FCUs.html
Conclusion
As a high airflow compact EC blower, Belmont 133mm dual-inlet forward curved centrifugal fan solves the demand of modern FCU equipment for energy efficiency, stable air supply and compact layout. With reliable structure, complete certifications and professional technical support, it becomes a stable long-term supporting fan supplier choice for global HVAC manufacturers.
Belmont is a professional manufacturer of EC centrifugal fans, axial fans and ventilation blowers for HVAC industry, supplying OEM fans for global air conditioning equipment manufacturers.
