Fans for Fresh Air Filtration Unit --- Bio-safety & Clean Room

	Model	Voltage [V]	Frequency [Hz]	Speed [rpm]	Max Power [W]	Max Airflow [m3/h]	Noise [dB(A)]
	B320M.E005	230	50/60	2600	655	3250	76
	B320M.E001	230	50/60	2150	355	2730	72
	B320M.E002	230	50/60	2500	594	3332	75
	B320M.E003	230	50/60	2480	484	2541	70
	B320M.E013	230	50/60	2860	575	4386	79
	B320M.E020	230	50/60	2300	445	2862	70
	B400M.E004	230	50/60	1520	650	5215	75
	B400M.E009	380	50/60	2060	1480	6700	77
	B450M.E001	380	50/60	1725	1340	7455	79

Airflow-static pressure curve：

Airflow-power curve：

Dimension

Core advantage

1. Precise Air Volume & Velocity Control

Compatible with standard FFU (1000-3000 m³/h), maintaining 0.3-0.6 m/s workspace velocity (±10% max fluctuation) to avoid clean dead zones.

Stepless speed regulation (0~10V/PWM/RS485) for flexible adjustment per cleanliness class (Class 100/1000, etc.) or dynamic loads.

2. High Static Pressure Adaptability

Static pressure ≥250Pa to overcome HEPA/ULPA filter resistance (even with dust accumulation), ensuring no air volume attenuation.

Flat static pressure-air volume curve; stable airflow within initial-to-final filter resistance range.

3. Anti-Microbial & Disinfection-Resistant

Smooth, corrosion-resistant aluminum alloy impeller (no dust/water buildup, anti-microbial).

Withstands UV-C, ozone, chemical spray disinfection (no aging or harmful substance release).

4. High Stability & Reliability (24/7 Operation)

EC motor: 30%+ energy saving vs. AC motors, MTBF ≥10,000 hours.

Insulation Class F (155℃), Protection Class IP54 (resists disinfectant spray/condensed water).

5. Low Noise & Vibration (Medical-Grade)

Operating noise ≤55dB(A) (1m measurement), no interference with medical procedures/patients.

Backward-curved centrifugal impeller (CFD-optimized) for low vibration, protecting equipment stability.

6. FFU Modular Compatibility

Compact, lightweight (≤15kg) for easy ceiling mounting, disassembly, and maintenance.

Airtight fan-FFU housing connection (leakage rate ≤1%) to prevent unfiltered air mixing.

FAQ

Q1：Why are EC backward-curved centrifugal fan preferred for biomedical clean workshops, and can ordinary AC fans replace them?

A1：Biomedical clean areas come with high filter resistance. EC models can stably overcome filter resistance and maintain uniform air supply and cleanliness levels. Compared with traditional AC fans, they deliver higher energy efficiency, stepless speed regulation and more stable operation, perfectly meeting the long-term continuous operation requirements of GMP sterile environments.

Q2：What designs enable EC backward-curved centrifugal fan to meet sterile and leakage-proof requirements in biomedical scenarios?

A2：Adopting high-quality sealing structure and sanitary grade body design, combined with high-efficiency configuration to prevent unpurified air leakage. The smooth surface is easy to clean without powder falling off, which can effectively isolate bacteria, particles and aerosols, and comply with biomedical cleaning and safety specifications.

Q3：How to quickly troubleshoot and solve problems of reduced air volume and substandard cleanliness during clean room operation?

A3：These problems are mostly caused by filter blockage, loose seals or abnormal motor control. Regularly monitor the filter pressure difference and replace filters in a timely manner, check the tightness of sealed connections, and inspect the power supply and signals of the EC control system to quickly restore the normal and clean operation of the workshop.

Q4：What core advantages do EC centrifugal fans have to adapt to the low-noise environment of biological laboratories and operating rooms?

A4：The optimized pneumatic impeller and brushless EC motor reduce operating vibration and friction noise. Matched with shock absorption installation structure, the overall noise is effectively controlled. It features excellent mute performance and fully meets the low-noise operation standards of medical spaces.

Q5：What safety protection and intelligent functions does the equipment have to ensure stable and continuous operation in medical scenarios?

A5：It is equipped with multiple electrical protections including overheating, locked rotor, overvoltage and undervoltage protection to eliminate potential equipment failures. It supports intelligent group speed regulation and remote monitoring, as well as power-off memory and soft start, avoiding air flow fluctuations and realizing 24-hour stable and safe operation for biomedical environments.