FD3G133-48GL-90 Dual Inlet Centrifugal Blower, 48VDC, 133mm, 958.5 m3/h

When telecommunications and data center cooling demands meet the need for whisper-quiet operation, the FANOVA FD3G133-48GL-90 dual inlet centrifugal blower emerges as the definitive solution. Engineered for 48VDC telecom-standard power systems (36-57V range), this blower delivers a maximum airflow of 958.5 m3/h while maintaining a noise level of just 64 dB(A)—quieter than a normal conversation. The 133mm cold-rolled steel impeller ensures industrial-grade durability and corrosion resistance, making it ideal for continuous duty in server rooms, network cabinets, and medical equipment. With a maximum static pressure of 400 Pa, it efficiently overcomes filter resistance and long duct runs, ensuring consistent ventilation even in restricted spaces. The brushless DC motor (BLDCDC92) consumes only 108W at full speed, offering superior energy efficiency compared to traditional AC blowers. Built-in electronic protection and insulation features safeguard against overcurrent, overvoltage, and thermal stress, extending operational lifespan. The die-cast aluminum housing provides robust structural integrity while dissipating heat effectively. Whether deployed in telecom shelters, laboratory fume hoods, or office ventilation systems, this blower integrates seamlessly with variable speed controls for precise airflow management. Certified to meet international standards, the FD3G133-48GL-90 is the quiet powerhouse that telecom and HVAC professionals trust for reliable, low-noise performance. Choose FANOVA for OEM/ODM customization that meets your exact technical requirements.

The FANOVA FD3G133-48GL-90 is a dual inlet centrifugal blower meticulously engineered for demanding 48VDC applications where acoustic comfort and mechanical resilience are non-negotiable. At its core lies a 133mm diameter impeller fabricated from cold-rolled steel plate, a material choice that delivers exceptional fatigue resistance, dimensional stability, and resistance to abrasive particulates—making it superior to plastic impellers in harsh environments. The impeller features a backward-curved blade geometry optimized for high-efficiency airflow generation, achieving a maximum flow rate of 958.5 m3/h (564.1 CFM) at free delivery and a static pressure capability of 400 Pa (1.6 in.wg) at sealed conditions. This performance profile enables the blower to handle high-resistance filter banks, lengthy ducting, and multiple outlet branches without compromising throughput. The integrated brushless DC motor, designated BLDCDC92, operates on a 92mm rotor diameter and accepts a wide input voltage range of 36 to 57VDC, with a nominal rating of 48VDC. At 1500 RPM, the motor draws 2.25A and consumes 108W, translating to a power density that maximizes airflow per watt—critical for energy-sensitive telecom base stations. Speed control is achieved via external PWM or 0-10V analog signals, allowing seamless integration with building management systems or DCIM platforms for demand-based ventilation. The motor incorporates hall-effect sensors for precise commutation, ensuring smooth torque delivery and minimal vibration, while the electronic drive includes overcurrent, overvoltage, and locked-rotor protection. Thermal protection is provided through a built-in NTC thermistor that triggers derating or shutdown at critical temperatures, safeguarding winding insulation rated for Class F (155°C). The blower employs dual ball bearings with a design life exceeding 50,000 hours at room temperature, reducing maintenance frequency in 24/7 operations. Structural components feature a die-cast aluminum housing that not only protects the motor and impeller but also aids in thermal dissipation, while the dual inlet configuration optimizes airflow entry from both sides, minimizing turbulence and noise. Acoustic performance is further enhanced by precision balancing of the rotating assembly, achieving a noise level of 64 dB(A) at maximum speed—suitable for office, laboratory, and healthcare environments. The electrical interface consists of a 500mm-long, 20AWG cable with stripped leads, providing flexible wiring options for OEM integration. The blower is manufactured under ISO9001 certified processes, with CE and RoHS compliance, and supports custom connectors, lead lengths, and coating options for harsh environments. For telecom applications, the 48VDC power architecture aligns perfectly with standard battery backup systems, ensuring uninterrupted cooling during mains failure. The FD3G133-48GL-90 exemplifies FANOVA's commitment to delivering high-performance, customizable airflow solutions that meet the rigorous demands of modern industrial and electronic cooling.

DC Dual Inlet Centrifugal Blower
Type	FD3G133-48GL-90
Model	BLDCDC92

Ⅰ.When taking out the fan, do not directly lift the fan lead wire. If the lead wire is excessively stressed, the internal welding part may fall off

Ⅱ.Do not plug or unplug the fan lead plug when the fan is running

Ⅲ.If the fan does not work after starting, do not touch the impeller, rotor, or other parts, professional technical personnel are required to inspect the fan to prevent sudden start of the fan from causing hand or other personal injury

Ⅳ.The power line and control line of the fan cannot be connected in reverse, otherwise it will burn out

Ⅴ.Because of the soft start characteristics of the fan, to prevent personal injury, do not touch the impeller or other parts of the fan during powered on or running at low speeds

Ⅵ.The fan needs to be operated and used under the guidance of professional personnel to prevent children from coming into touch this product

Ⅶ.If the power line is worn or damaged, it needs to be returned to the manufacturer for repair or be replaced under the guidance of the manufacturer

Ⅷ.As a part of the fan, it is not recommended to use the motor alone when there is no impeller or loading

1. High Efficiency: The FD3G133-48GL-90 delivers 958.5 m3/h at 400 Pa while drawing only 108W, achieving 30-40% energy savings over equivalent AC fans through FANOVA's BLDC motor technology.

2. Industrial-Grade Impeller: The 133mm galvanized steel sheet impeller resists corrosion, wear and high temperatures, making the fan suitable for harsh industrial environments and corrosive gas streams.

3. Wide Application Range: Suitable for industrial ventilation, dust extraction, HVAC units, agricultural ventilation and new-energy equipment, offering flexible customized solutions (OEM/ODM).

4. Sustainable Development: Low-voltage DC operation enables direct solar and battery integration; recyclable steel impeller and optimized BLDC drive meet eco-friendly requirements with long-term reliability.

5. Easy Installation and Maintenance: Compact 133mm footprint, 0-10VDC/PWM speed control, FG tach output and standard cable make the fan simple to wire, control and service.

Q1:What kind of payments do you support?

A1: For sample order, 100% payment in advance; For batch order, 30% in advance and 70% will be paid before shipping

Q2.Will you provide samples?

A2: Sample is available and can be delivered within 10days

Q3:How can I choose a more suitable model?

A3: We need the information like fan type, quantity, size, material, voltage, air flow and static pressure.

Q4:How can I place the order?

A4:  Usually quote you within 24 hours  after  we get your inquiry. First sign the PI,pay deposit,then we will arrange the production.After finished production need you pay balance. Finally we will ship the Goods.

Q5:About transportation

A5: All available shipping ways could be applied, express shipping, air or sea. Appointed shipping company or our own forwarders all could be used in shipment. Full-way tracking the cargos for you before the goods arrive. 

Q6:How long is the warranty period?

A6: We currently offer 3-year quality guarantee for our own products, and in response to current product problems, our company provides line support, and some customers have been able to improve their products.