Galvanized Steel Sheet Dual-Fan FFU With Differential Pressure Sensor

The Dual-Fan Fan Filter Unit (FFU) is a high-efficiency air filter terminal device specially designed to purify and control cleanroom air. Compared to standard single-fan FFUs, the Dual-Fan FFU is fitted with two high-efficiency fans that are independent of each other, providing a more consistent airflow and conforming to cleanroom-specific airflow requirements, and that produce superior air quality that meets cleanroom specifications. The Dual-Fan FFU includes a built-in differential pressure sensor that checks fan pressure and filtration performance in real time, allowing it to maintain optimal equipment performance and filtering performance across the full operating cycle of a Clean Room Fan Filter Unit.

Dual-Fan FFU Structure

A dual-fan Clean Room Fan Filter Unit consists primarily of the following components:

• Fan System: Two independent, high-efficiency fans, capable of operating independently or simultaneously, ensure sufficient and uniform airflow.

• Filter Unit: Utilizes a 2x4 HEPA filter or custom-designed high-efficiency filter element, achieving a filtration efficiency of up to 99.99%, removing micron-sized particles from the air.

• Casing: Durable, corrosion- and rust-resistant, galvanized steel construction adapts to various cleanroom environments.

• Differential Pressure Sensor: Real-time monitoring of filter element pressure differential facilitates timely maintenance and replacement, ensuring air quality.

• Control System: Supports independent fan speed regulation, adjusting air volume based on cleanroom grade requirements for intelligent management.

Dual-Fan FFU Features

• Efficient and Stable: The dual-fan design ensures sufficient and uniform airflow, ensuring more stable cleanroom air circulation.

• Intelligent Monitoring: A differential pressure sensor provides real-time feedback on filter status, reducing maintenance costs and extending equipment life.

• Energy-Saving and Environmentally Friendly: The fans operate independently, enabling localized regulation and energy-saving operation.

• Customizable: Supports various sizes and filter types to meet various cleanroom requirements.

• Safe and Reliable: The durable galvanized steel casing is dust-resistant and corrosion-resistant, suitable for long-term continuous operation.

In which situations is a dual-blower FFU better than a single-blower FFU?

1. High air flow requirements

When the cleanroom is large or requires strong air circulation, a single-blower FFU may not be able to provide sufficient air volume.

Dual-blower FFUs, with two independent fans delivering air, can provide greater and more uniform air volume, ensuring the cleanroom air meets the specified air quality standards.

2. Environments requiring strict air flow uniformity

For high-class cleanrooms such as Class 100–Class 1000, air flow uniformity directly impacts product quality or lab results.

The dual-blower design reduces dead spots and air vortices, ensuring more uniform airflow coverage, making it more suitable for applications requiring high air flow uniformity than a single-blower FFU.

3. Continuous operation and high reliability requirements

In critical production lines or environments with high-value products, equipment downtime can be costly.

Dual-blower FFUs offer redundancy. Even if one fan fails, the other can still maintain basic air circulation, ensuring safe cleanroom operation.

4. Requirements for Differential Pressure Monitoring and Intelligent Management

Dual-blower FFUs are typically equipped with differential pressure sensors that independently monitor the status of both blowers and filters.

This intelligent management facilitates timely maintenance and filter replacement, ensuring consistently stable air quality.

5. Suitable for high-grade cleanrooms or specialized process environments

In industries such as chip manufacturing, pharmaceutical production, and precision electronics processing, air cleanliness requirements are extremely stringent.

Dual-blower FFUs offer higher cleaning efficiency and more stable airflow, meeting the standards of these demanding environments.

In these environments, the high-efficiency filtration capability of Terminal Hepa Filter can effectively control the number of particles in the air, ensuring the safety and cleanliness of products and experiments.

FFU Fan AC Motor vs DC Motor

Our DC motors are Japanese Nidec brand. If your budget is high, you can choose a DC FFU.

If you require a higher level of air filtration, our Amber Team can also provide customized ULPA Fan Filter Unit solutions. We offer one-stop services including design, installation, and commissioning to ensure long-term, stable operation of your cleanroom. Please contact us if you require any assistance.

Fan Filter Unit Specifications