FD3G133-24GL-90 Dual Inlet Centrifugal Blower, 24VDC, 133mm, 958.5 m3/h

The FD3G133-24GL-90 dual inlet centrifugal blower is engineered for environments where low noise is critical, operating at just 64 dB(A) – quieter than a normal conversation. This 24 VDC model delivers exceptional airflow of up to 958.5 m³/h (564.1 CFM) while maintaining a robust static pressure of 400 Pa, making it ideal for medical devices, laboratory equipment, and office ventilation. The unit features a cold-rolled steel impeller that provides superior durability and wear resistance, ensuring long service life even in demanding industrial applications. Its brushless DC motor (BLDCDC92) offers variable speed control via PWM or 0-10V signals, enabling precise airflow management for energy-saving operation. With a wide voltage range of 16 to 28 VDC, this fan is perfect for solar-powered or off-grid systems, as well as battery-backed new energy installations. Protection features include reverse polarity and overload safeguards, while the die-cast aluminum housing and end caps ensure excellent heat dissipation and structural integrity. The dual inlet design allows for higher airflow capacity, potentially replacing multiple smaller fans and reducing system complexity. Certified to CE and RoHS standards, this blower is a reliable choice for OEMs seeking a quiet, efficient, and durable air-moving solution. Backed by FANOVA's OEM/ODM expertise, it can be customized to meet your specific performance and interface requirements.

The FD3G133-24GL-90 is a high-performance dual inlet centrifugal blower designed for applications that demand both quiet operation and reliable airflow delivery. At the heart of this unit is a forward-curved impeller constructed from cold-rolled steel plate (SPCC), featuring a diameter of 133 mm. The steel construction provides exceptional mechanical strength, resisting deformation under continuous operation and offering superior abrasion resistance compared to plastic alternatives. This makes the blower suitable for environments with particulate-laden air or where frequent start-stop cycles could stress less robust materials. The impeller is dynamically balanced to minimize vibration and noise, contributing to the overall low acoustic signature of 64 dB(A). The housing and end caps are manufactured from die-cast aluminum alloy, which not only adds structural rigidity but also acts as an effective heat sink, dissipating motor heat and extending component lifespan. The motor technology is based on a brushless DC motor (BLDCDC92 with a rotor diameter of 92 mm) that incorporates a sensorless control algorithm, reducing wear and maintenance needs while providing high efficiency. The motor's electrical ratings include an input voltage range of 16 to 28 VDC (nominal 24 VDC), a maximum current draw of 4.5 A, and a power consumption of 108 W at full speed. Speed control is facilitated through two primary interfaces: a PWM input (frequency range 1-10 kHz) and a 0-10 V analog voltage signal, allowing seamless integration with external controllers or building management systems. For safety and reliability, the blower includes protection against reverse polarity, overcurrent, and locked-rotor conditions, as well as a thermal cutoff to prevent overheating. The insulation class is Class B, and the motor is rated for a bearing service life of at least 70,000 hours at 40°C ambient temperature, ensuring years of maintenance-free operation. The electrical connection is provided via a 20 AWG cable with a length of 500 mm, terminated with standard leads for easy wiring. The blower's performance curve shows a maximum airflow of 958.5 m³/h at zero static pressure, and a maximum static pressure of 400 Pa at zero airflow, making it suitable for systems with moderate duct resistance or high-efficiency filters. The dual inlet configuration allows for balanced air intake from both sides, reducing inlet turbulence and improving overall acoustic performance. Each unit undergoes rigorous testing for air performance, noise, and vibration in FANOVA's certified laboratories, ensuring consistency and quality. The product is CE and RoHS certified, reflecting compliance with European safety and environmental directives. With its combination of low noise, low-voltage DC operation, and durable steel impeller, the FD3G133-24GL-90 is a versatile solution for OEMs in the medical, telecommunications, and renewable energy sectors, offering customization options such as alternative cable lengths, connectors, and speed control characteristics to meet specific project needs.

DC Dual Inlet Centrifugal Blower
Type	FD3G133-24GL-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 FD3G133-24GL-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.