Technical Data Sheet ( TDS)

           YFIMF TDS

CDA Drawings (Dimensions)

         YFIMF Drawing

Certifications

Manual ( IOM)

Options

Detailed Specifications

Wheel Technology

1. Wheel in a New Form 

The mixed flow wheel includes a wheel cone carefully matched to the inlet cone for precise running tolerances to reduce air leakage and turbulence, improve efficiency and lower sound.

2. Advanced Design

The design of the flow passage is optimized through CFD simulation and experimental verification, dramatically improving the wheel efficiency over the traditional mixed flow wheel.

3. Advanced Process 

Die-formed and continuously welded, the wheel and flow passage components are of high precision, high strength and greater reliability.

4. High Balance Quality Grade

The wheel has been dynamically balanced twice: after the continuous welding process and after epoxy coatings applied on the surface. The balance quality grade reaches AMCA 204-G2.5. This helps greatly improve wheel balance, reduce vibrations and lower sound.

5. Optimum Sound Performance 

The mixed flow wheel takes on intermediate performance characteristics between the axial and centrifugal wheel. Tests in the AMCA accredited laboratory (AMCA 300 Standard) show that it has such optimum sound performance that a bystander would hear a more band sound.

General Features

1. Performance Characteristics of Mixed Flow Type

The mixed flow fan takes on intermediate performance characteristics between the axial and centrifugal fan and features higher efficiency and lower sound. It allows greater airflow than the centrifugal fan and produces higher pressure than the axial fan. The mixed flow fan has a smaller wheel diameter than the centrifugal fan at the same speed and has lower speed than the axial one with the same wheel diameter. 

2. High Efficiency and Lower Operation Costs

The optimized wheel and guide grid help ensure optimum flow efficiency, reducing turbulence and leakage. The YFIMF Model fan is AMCA Certified for Fan Efficiency Grade and is rated Energy Label Grade 1.   

3. Better Sound Quality: Lower Sound Power

The sound quality of a mixed flow fan benefits from the low sound design as well as the reduced overall sound power. The mixed flow fan has a much lower sound level than the axial fan and double inlet centrifugal fan at all octave bands. Moreover, its sound mostly falls into the low octave band (62.5-250Hz) and a bystander would hear a more band sound.

4. Fans in Direct and Belt Drive Types for Flexible Model Selection

• The direct drive type features high transmission efficiency, more compact design, low maintenance and no quick wear parts. For the fan of each specification, there are wheels of 6 different angles to choose from to meet the requirements for model selection.

• The belt drive type enables automatic matching in model selection and offers greater flexibility in responding to field conditions. Also, it is more convenient to repair and replace motor.    

Technical Information

1. Quality Standards

The fan shall be tested and certified in accordance with AMCA Standard 210 & 300. AMCA Seal for (Efficiency Sound, Air Performance and Fan Efficiency Grade) shall be tagged on each fan before leaving the factory as a standard seal.

The manufacturer shall obtain Production License for National Industrial Products and be certified by ISO 9001, ISO 14001, ISO 45001.

2. Fan Type

The YFIMF fan shall be of the mixed flow, belt / direct drive and inline type. It shall be in a cylindrical structure. 

3. Inlet

The inlet shall be designed in line with aerodynamics and spun with high quality carbon steel. It shall be streamlined for better airflow movement and efficiency, reducing turbulence and sound.     

4. Housing 

The housing shall be in a two-cylinder structure: the inner cylinder and the fan housing interior to which the guide vanes are welded. The inner cylinder and the fan housing interior are rolled round and all welded with high quality carbon steel. The motor is located inside the inner cylinder supported by the guide vanes. Also, the guide vanes shall be a three dimensional curved surface to help improve the air performance and static pressure efficiency of the fan.  

5. Surface Processing

The surface of the fan shall be polished to remove any protuberances, welding spatters, burrs, sharp edges, scrap iron and greasy dirt before being finished with electrostatic epoxy coatings. The surface shall be a level one without sags, cracks, cockles or detachment. 

6. Fan Parts and Drive Mechanism (For belt drive type only)

General Brochure