Panbu Electric
Pengke PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC)

EC Motor and EC Fan

PANKA Fan

Pengke PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC)

The PLFB series is PANKA's centrifugal supply and exhaust fan unit, integrating the centrifugal fan, motor, and housing into a single assembly. Its quick-release housing design allows for rapid removal of the access door and impeller module, simplifying on-site maintenance and cleaning. Performance highlights include a maximum airflow of 100000m³/h, maximum pressure of 4500Pa, peak static efficiency of 79%, and peak total efficiency of 83%. Impeller diameters range from 250mm to 1250mm, with material options including aluminum alloy, composite materials, carbon steel, and stainless steel. The housing features integrated inlet and outlet flanges for direct connection to duct systems, eliminating the need for on-site fan room construction and vibration isolation foundations. The EC version supports stepless speed control and centralized group management, making it ideal for ducted supply/exhaust applications, underground mechanical room ventilation, and building fresh air and exhaust systems.

Technical Specifications

  • Max Airflow100000m³/h
  • Maximum Pressure4500 Pa
  • Maximum Static Pressure Efficiency79%
  • Maximum total pressure efficiency83%
  • Impeller Diameter250mm~1250mm
  • Impeller MaterialAluminum alloy, composite materials, carbon steel, stainless steel
  • Structure TypeMonolithic chassis with quick-release maintenance design
  • Drive TypeEC Electronic Commutation Motor / AC Motor
  • API FormThe enclosure features built-in inlet and outlet flanges.
  • Ingress Protection RatingIP4
  • VerifyCE, AMCA (optional)

Key Advantages

Quick-release housing design for easy inspection and cleaning

Fan and cabinet supplied as a complete unit; minimal on-site installation required.

Maximum static pressure efficiency: 79%, maximum total pressure efficiency: 83%

Impeller material options: aluminum alloy, composite, carbon steel, stainless steel.

Unit includes built-in flanges for direct connection to duct systems.

EC models support stepless speed control and multi-unit group control.

Use Cases

Ducted Supply and Exhaust Air

Ventilation for underground machine rooms and equipment rooms

Building Fresh Air and Exhaust Systems

Local exhaust ventilation in industrial workshops

Pengke PLFB Centrifugal Supply and Exhaust Fan Unit Selection Parameter Table

← Swipe left or right to view full parameters; first column is fixed

ParameterNumericDescription
Max Airflow100000m³/hSeries limit, corresponding to the maximum impeller setting
Maximum Pressure4500 PaMaximum static pressure (series)
Maximum Static Pressure Efficiency79%Sample Label Value
Maximum total pressure efficiency83%Sample Label Value
Impeller Diameter250mm~1250mmSeries Coverage
Impeller MaterialAluminum Alloy, Composite Materials, Carbon Steel, Stainless SteelSelect by medium conditions
Structural FormMonocoque chassis with quick-release maintenance designFan and enclosure supplied as a complete unit
API FormatThe housing comes with built-in inlet and outlet flanges.Directly connect to duct systems
Drive TypeEC Electronically Commutated Motors / AC MotorsEC type supports stepless speed control and group control
Ingress Protection RatingIP4Indoor Standard Environment
VerifyCE, AMCA (optional)AMCA performance certification available upon request

The "Impeller Diameter vs. Airflow Ranges" table provides reference intervals based on the maximum performance of the PLFB series (100000m³/h, 4500Pa) using proportional scaling for preliminary model selection. Final selection must be verified against manufacturer performance curves and site duct resistance calculations.

Download

Pengke PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC)Product Catalog (PDF) – Download for full technical specs, installation dimensions, and selection tables.

Pengke PLFB Centrifugal Supply and Exhaust Fan Unit (EC/AC)Product Catalog

PDF Document · Free Public Download

Download PDF SampleRequest more information

Related Case Studies

All Cases
Wolong EC Fan Energy Efficiency Retrofit Case | Yichang Ziquan Beverage Industry Co., Ltd. | Permanent Magnet Direct-Drive EC Fan Retrofit for Workshop Air Handling UnitsEnergy Saving33%

Food & Beverage

Wolong EC Fan Energy Retrofit Case | Yichang Ziquan Beverage Industry Co., Ltd. | Permanent Magnet Direct-Drive EC Fan Energy Retrofit for Workshop Air Handling Units

Yichang Ziquan Beverage Industry Co., Ltd. upgraded the air handling units in Production Lines 1 and 2 from standard impellers with belt drives and three-phase asynchronous motors to卧龙 permanent magnet rotor synchronous motor direct drive, smart variable frequency systems, and high-efficiency EC fan systems. Annual power consumption dropped from 311,256kWh to 209,088kWh, achieving an overall energy savings rate of approximately 32.8%.

Panpu EC Permanent Magnet Fan Case Study | Cleanroom Operator | Energy-Saving Variable Speed Retrofit for Cleanroom Fan SystemsEnergy Saving35%

HVAC

Panpu EC Permanent Magnet Fan Case | Cleanroom Operator | Energy-Saving Retrofit of Cleanroom Fan Clusters with On-Demand Speed Control

Replace traditional AC fan clusters with EC permanent magnet fans, and use differential pressure sensing to enable on-demand speed control for air supply, reducing energy consumption and noise in the cleanroom's ventilation system.

Wolong High-Voltage Variable Frequency Drive Case Study | Pakistan K Electric Power Supply Project | Medium-Voltage VFD System Bidding and Engineering Delivery

Mining and Metallurgy

Wolong High-Voltage Variable Frequency Drive Case Study | Pakistan K Electric Power Supply Project | MV VFD System Tendering and Engineering Delivery

Longde Electric (Zhejiang) Power Electronics issues Authorization Letter NO.WLPEFX20260019, authorizing Pakistani agent Techno Control Pvt. Ltd. to bid for the K Electric VFDs project. The project confirms ten delivery commitments—including technical clarification, drawings, protection coordination, interfaces, HVAC dimensions, foundations, signal exchange, software backup, and O&M training—as specified in the Technical Clarification Letter.

Cases are automatically linked by product series and application industry, allowing you to view retrofit details and performance data for similar operating conditions.

Looking for a motor and energy-saving solution tailored to your operating conditions?

Submit request. Our technical engineer will contact you within 1 business days.