Product
- Industrial Centrifugal Fan -- Low Pressure -- High Pressure -- Plug Type -- Plenum fan -- FRP Centrifugal Fan
- Inline Fan - Axial Fan - Centrifugal Fan - Mixed Flow Fan
- Roof & Sidewall Fan -- Roof Fan -- Sidewall Fan
- DWDI AHU Fan
- Tunnel Fan &
Metro Fan - Induced & Kitchen Fume Extractor Fan
- EC Fan
- Other
- Intelligent Control
- Fresh Air and Heating Unit
- INFINAIR Motor
- Customization
Inline Square Mixed Flow Fan- Wheel Type H- YFISH
Airflow Range: 1,000～135,000 m3/h (588~79,410CFM)
Static Pressure Range: 100～1,700 Pa (0.4~6.82 in.WG.)
Drive Types: Direct/ Belt drive
Mounting Types: Base Mounted/ Ceiling hung
Applications: General air supply and exhaust/ Filtered air supply and exhaust / Sound-proof fan box
For reference only. Please contact our sales rep for detailed performance fan curve. Thank you.
Wheel
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.
The design of the wheel is optimized through CFD flow field simulation and repeated tests for optimum air performance, dramatically improving the efficiency over the traditional mixed flow wheel.
Die-formed and continuously welded, the wheel and flow passage components are of high precision, high strength and greater reliability.
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 standard well above the international standard of G6.3. This helps greatly improve wheel balance, reduce vibrations and lower sound.
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 bland sound.
Product Features
Compact and More Cost-effective Design Without Scroll
Traditional fans with scroll are subject to the limitations of inlet distance from the scroll. For the YFISH fan designed without scroll, air is directly sucked through the inlet cone into the wheel and gets pressurized which will help reduce efficiency loss caused by turbulence and achieve better air performance. At the same time, the more compact design saves space, making it the best choice for more cost-effective box-type fans.
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. When the operating point moves up and down between A and B as shown here, 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.
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 sound chart compares units of same outlet diameters at an operating point. 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 bland sound.
Aesthetically Pleasing Housing Constructed of Aluminum Alloy
The aesthetically pleasing housing constructed of aluminum alloy features high strength, light weight and tight sealing. Also, acoustical options can be customized (Options: soundproofing egg crate foam wall tiles or double layer soundproofing structure) for further improved performance.
Fans in Direct and Belt Drive Types for Flexible Model Selection
-- The direct drive type features high transmission efficiency, more compact design, minimal maintenance and no quick wear parts.
-- The belt drive type has a broader range of applications, allows more precise model selection and offers greater flexibility in responding to field conditions.
Different Discharge Options and More Flexible Applications
The direct drive type offers four different discharge options and the belt drive type seven. They can meet various design needs, making onsite installation easier and more convenient.
Technical Specifications
Fan Type
The duct mounted YFISH fan shall be of the mixed flow, belt or direct driven, inline type. It shall be designed without a scroll. The fan wheel shall be of the mixed flow type, constructed of steel and shall include a wheel cone carefully matched to the inlet cone for precise running tolerances. Wheels shall be statically and dynamically balanced up to AMCA 204-G2.5 standard.
Quality Standards
The fan shall be tested and certified in accordance with AMCA Standard 210 & 300.The manufacturer shall obtain Production License for National Industrial Products and be certified by ISO9001.
Surface Processing
The surface of the wheel 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. The surface shall remain free from corrosion.
Drive Mechanism (Only for belt drive type)
Drive Type (Only for belt drive type):
The shaft shall be made of 40Cr steel and heat treated through homogenizing furnace to the hardness level of HB 286. The shaft material shall have a maximum limit of yield strength of 550MPa. Hard film shall be applied on the surface to avoid corrosion. The shaft shall also be dynamically balanced together with the wheel. The design speed of the shaft shall be at least 25% more than the maximum running speed of the fan.
Pulley: Fan pulleys shall be sized for a minimum of 150% of the driving power. Pulleys shall be cast iron, keyed and securely attached to the wheel and motor shaft. Conical type bushings shall be equipped for easy removal of the pulley.
Belt: The belt shall be grease and oil and static proof and resistant to high temperature.
Bearing: Independent metal bearings shall be used to support the shaft to avoid vibrations directly coming onto the motor. The bearing L10 rating life shall be in excess of 80, 000 hours at the maximum cataloged operating speed. The bearing shall be of permanently sealed type and pillow block metal ball bearing that can be lubricated. The bearing brand shall be internationally known, such as FYH and SKF.
Drive Support: Drive mechanism shall be supported by thick steel sheet finished with powder coatings to avoid corrosion. The belt tension can be adjusted through the adjusting bolt at the motor base. The design shall make sure the fan shaft and motor shaft is always parallel.
Belt Guard: The semi-enclosed belt guard shall be fitted to avoid injuries.
Motor
The motor shall match the fan load carefully. It shall be IP55 rated with Class F Insulation and Temperature Rise Class B. It shall be of B5 installation type for direct driven motor and B3 for belt driven motor. The bearing shall be lubrication-free ball type. The coefficient of power reserve of the selected motor shall be 110% to ensure safe operation. Motor types shall be selected based on the actual operating conditions, such as TEFC, 2-SPD, EXP, VFD and 60Hz.
Nameplate
A permanently fixed aluminum nameplate shall clearly display the fan number, product model and serial number (a unique ID for each fan) so that the parts used can be traceable by customers.
Company Profile
INFINAIR is an innovative company which provides environmental and intelligent solutions for all aspects of ventilation systems in both private and public sector. They have been INFINAIR’s core values and commitments to our customers over the years.
Trademark： INFINAIR
Established Since: September 2003
Paid up capital: 50,000,000 RMB
Architectural area: 33,000 ㎡
Address: No. 55 Qingneng Road, Waigang Town, Jiading District, Shanghai, P. R. China
Sales & Service Office:
Our sales and after-sale service network promise easy access to customers anywhere in China. They are located in various locations: Shanghai, Beijing, Shenchen, Jilin, Liaoning, Tianjin, Shanxi, Henan, Shaanxi, Shandong, Jiangsu, Anhui, Zhejiang, Fujian, Zhongqing, Sichuan, Hunan, Hubei, Guangdong, Guangxi, Hainan, Guizhou and XinJiang.
Company Vision:
To become the most trusted brand of professional air movement & control solution provider.
Company Mission:
To provide the most reliable and user-friendly air movement & control system.
Product value proposition of INFINAIR: Reliable, Convenient, and Novel.
1. Reliable
At INFINAIR, we prioritize reliability in our products and services. INFINAIR focuses on high-quality system construction, we commit to the constant improvement of product and service reliability:
R&D ability as the basis of product reliability:
At INFINAIR, R&D ability is at the core of our product reliability. Thanks to the extensive experience, INFINAIR has mastered CFD, FEA and CAD technology, fundamentally and significantly improving product reliability. INFINAIR’s air performance lab and noise lab both play a part in forming a solid foundation for product reliability in terms of test scope and precision, as well as in overall investment and construction scale. Our labs are accredited by CNAS, and INFINAIR also boasts the first lab in Mainland China accredited by the AMCA.
Technology and Equipment Reliability Guarantee:
By continually investing in improvements to processing technology and equipment, INFINAIR constantly increases and improves processing capability and precision, assembly methods, production processes, online monitoring, and pre-distribution testing, guaranteeing an ever-increasing level of product reliability.
Third party certification as further proof for reliability:
INFINAIR possesses various third-party qualifications including: Industrial Product Production License, Explosion-Proof Production License, as well as certifications such as ISO 9001, ISO 14001 and OHSAS 18001 qualifications. Most INFINAIR products are compliance-certified by a third party. INFINAIR is the industry leader in terms of both the number of certifications and how long we have held these certifications.
Quality-management system and ongoing reliability:
INFINAIR utilizes an ISO 9001-compliant quality management system, certified by SGS. We constantly carry out 5S and lean production Six Sigma improvement, meticulously establishing a sustainable quality management system.
2. Convenient
INFINAIR features:
-- Complete product configuration and varied impeller forms.
-- Adaptable product selection.
-- Flexible lead time.
-- Quick customization.
-- Prudent product accessory options.
-- By your side service team and quick courier delivery service.
3. Novel
At INFINAIR, we not only pursue products that are like no other, we also pursue innovation. Both of these pursuits aim to give our clients better value.
We offer:
-- Greater aerodynamic performance, energy-saving ability, and noise reduction ability.
-- Simplified, rationally-developed structures.
-- More convenient installation and use.
-- Low maintenance, low total cost of ownership.
-- Adaptable and pragmatic post-sale service.
INFINAIR Laboratory
INFINAIR laboratory is the first AMCA accredited air performance and sound testing laboratory in the mainland of China.
INFINAIR laboratory has successfully obtained the CNAS Laboratory Accreditation Certificate and enlisted in the Chinese National Accredited Laboratory Directory.
Laboratory Accreditation Certificate Issued by CNAS (Chinese National Accreditation Service for Conformity Assessment)
Laboratory Accreditation Certificate Issued by AMCA (Air Movement and Control Association)
All testing procedures at INFINAIR’s air performance and sound testing laboratory are done according to the following standards:
1. All design, fabrication and testing guidelines are in strict accordance with AMCA 210, AMCA 300, ISO 5807, GBT 1236, ISO 13350 and GBT 10178 standards.
2. The INFINAIR laboratory has replaced the simple cardboard shielding method duct test with a new generation of precise-flow nozzle matrix systems.
3. Advanced and sophisticated testing equipment are being used in the laboratory.
4. All equipment used in the laboratory are calibrated and inspected regularly.
5. When comparing the results of same-sample inter-lab tests, the INFINAIR lab test results’ margins of error are within the precision and error requirements specified by relevant international/national standards.
INFINAIR laboratory also has the following test capabilities:
1. perform overspeed test in accordance with JB/T6445 Overspeed test for industrial fan impeller;
2. perform vibration test in accordance with JB/T8689 Fan vibration detection and its limited value and other related standards;
3. perform thrust test for tunnel jet fans in accordance with ISO13350 Industrial fan-Performance testing of jet fans;
4. Designed in accordance with such standards as EN 12101-3 and UL 793, INFINAIR laboratory has built high-temperature furnaces for smoke removal fans for performance tests and as a witness test platform for obtaining TUV, UL and other overseas certifications.
INFINAIR laboratory can perform other tests, such as high and low temperature resistance test, water spray and splash test, physicochemical test, dust test and so on. The laboratory helps ensure precise tests for reliable product quality and accurate technical data.
R&D and Innovation
INFINAIR's Numerical Simulation Technology
INFINAIR owns the industry-leading CFD technology
INFINAIR Research Institute masters a set of core CFD technology combining theory with practice owned by INFINAIR itself. Through a large number of repeated engineering applications for many years, now, INFINAIR’s CFD capability is mature and accurate. Besides, in combination with internationally accredited precision laboratories, Our CFD processes have been repeated hundreds of times to allow for comparison between theoretical values and test results, accumulating valuable test data.
CFD is an important R&D capability of INFINAIR’s Research Institute;; it is featured of high calculated result reliability and fast calculation process. By means of the all-series product utility module system, it can reduce the module development cost of new product at the same time of offering fast customization to customer, and ensure economy while realizing customization.
Successful cases of INFINAIR CFD technology:
1. INFINAIR product generally adopts CFD for systematic development and optimized design, and this is just why INFINAIR is capable of supplying more energy-saving and more efficient products with lower noise. Please see following picture of simulated aerodynamic performance process of INFINAIR complete mixed flow fan, a certain new box-type fan of INFINAIR and a certain centrifugal fan of INFINAIR.
CFD flow field pressure and rate of INFINAIR patented complete mixed flow fan (process illustration)
CFD flow field trace of a certain new box-type centrifugal fan of INFINAIR (process illustration)
CFD analysis for inducing fan of garage (process illustration)
2. With respect to garage ventilation system optimization, INFINAIR has successfully developed a new, complete series centrifugal inducing fan with high static pressure as wehll as far projection distance, and guide the ventilation system layout of underground garage of customer. The following is the flow field layout simulation of an underground garage.
INFINAIR has mature FEA technical capability
1.In the practice process of FEA technology for many years, INFINAIR has accumulated a large number of data and experience which are suitable for actual physical property of common materials in China market.
2.INFINAIR Research Institute fully calculates and repeatedly adjusts the material type, material thickness, structural form and processing way in design stage to ensure that the parts can resist various pressures in operation, ensure that the fan can operate reliably for a long time, and ensure that the product cost is reasonable.
3.The final product scheme goes through the reliability verification of INFINAIR laboratory, conducts failure analysis and life extension analysis for products suffered aging test, reaches a definite conclusion, and thus reasonably saves equipment investment while improving product reliability.
CFD flow field pressure cloud of a certain centrifugal fan of INFINAIR (process illustration)
——Numerical simulation technology CAE
1.Numerical simulation is a kind of application of Computer Aided Engineering (CAE), mainly includes two core technologies of CFD and FEA.
2.CFD is short for Computational Fluid Dynamics. CFD simulate-calculates the product performance inside computer, provides guidance for aerodynamic model design (optimize the number of blades, angles and widths) and noise prediction of fan, especially impeller, and thus helps the designer basically predict the final aerodynamic performance without producing so many prototypes, consequently realizes quick customized design or systemic optimization.
3.As a “virtual laboratory”, CFD can realize fast iteration, save cost and reduce R&D period, is a strong tool for effective and reliable fan R&D and non-standard customization, and will provide accurate scheme for optimization of ventilation system.
Process illustration of FEA stress distribution for customized centrifugal fan impeller made by INFINAIR
Successful cases of INFINAIR FEA technology:
1.The following is process illustration for a customized fan analyzed by INFINAIR Research Institute . According to the system natural vibration characteristics of the customer, INFINAIR Research Institute makes vibration mode analysis for the overall customized fan, achieves structural optimization, avoids resonating with system, and ensures that the fan can operate reliably for a long time.
Modal analysis for fan frame made by INFINAIR Research Institute through FEA
2.In order to analyze the bearing and deformation of motor platform in operating process, INFINAIR Research Institute conducts modal analysis based on FEA technology.
R&D and Innovation: R&D team
INFINAIR Research Institute focuses on “product life cycle” and is fully responsible for management of all products. The responsibilities are as follows:
1.Fundamental research of hydromechanics;
2.Market research of ventilation, gas heating, motor, air purification and automatic control of ventilation system;
3.Product planning, R&D and manufacturing;
4.Customization;
5.Market launch and promotion, maintenance and update/obsolescence;
6.Product experiment and test, product certification;
7.Order processing and technical support.
As a new high-tech enterprise in Shanghai, INFINAIR Research Institute has an excellent technical talent team combing elder, middle-aged and young people and an effective talent cultivating mechanism. Immersing in Youth Culture of Ready to learn, Hard-working, Enterprising, Forward-looking, Innovative, Pioneering for a long time, INFINAIR R&D team has cultivated innovative spirit which has become source for core competitiveness of company.
INFINAIR Research Institute always takes Reliable, Convenient, Novel as the basic concept of product R&D and design. Under the guidance of the spirit and concept, the institute has reached innumerable great achievements, obtained more than 40 patent certificates and won many honors, it has launched many products for the first time in industry, what is more important is that INFINAIR Research Institute takes “at customers’ side” and resolving practical product issues for customer as an important work habit, and thus creates valuable and satisfactory experience, gains full trust of customer. INFINAIR Research Institute will never stop innovating.
Production Capacity
Advanced Technology and Equipment Ensure Product Reliability--Much to expect from just having excellent design and a precise detail-oriented drawing? In fact, there is still a long way to go before finalizing a reliable product that comes only from high processing precision and advanced technology.
-- INFINAIR has put to use a large number of high-precision CNC processing machines. Besides, INFINAIR has produced lots of special-purpose equipment and core molds through its independent R&D efforts.
--Also, R&D staff and production workers at INFINIAR are mobilized to promote technological improvements through concerted efforts. By analyzing onsite issues and sharing the actions for improvement, product reliability has been continuously enhanced with the help of wisdom of frontline workers.
Reliability Certified by Quality Control Systems
--INFINAIR has been awarded triple certification in ISO9001, ISO14001 and OHSAS18001 by SGS, a world famous certification agency.
--INFINAIR performs tests on key points at all stages of production and products must be rigorously tested before leaving the factory to ensure reliability. A case in point: INFINAIR made huge investments in building a vibration test bench on the production line and importing dedicated test equipment from Germany for greater accuracy. This bench covers 180 square meters with its foundation reaching 20 meters underground.
--Furthermore, INFINAIR works with consulting companies to launch 5S programs and take the Six Sigma approach to the continuous improvement of products. In this way, abilities of staff can be improved and a sustainable quality management system built.
The TÜV SÜD Certificate
AMCA accredited lab
AMCA membership certificate
Numerous Product Patents
CE Certification
CNAS lab accreditation
ATEX Certification
ISO 9001 quality management system
OHSAS 18001, Occupational Health and Safety Assessment Series
ISO 14001 environmental management system
Explosion-Proof Certification
Fire Fighting Certification
Case Study
This video is about a signature airport job of INFINAIR ventilation. We participated and competed the bidding for this ventilation project - Xinzheng Airport in 2014.
With the lack of fossil fuel and aggravation of pollution, nuclear power is the unique new power can be Large-scale applied with great prospect.
The Dongfeng Yueda KIA is an joint-venture of Dongfeng Motor Corporation、Jiangsu Yueda Investment Co. Ltd and Korean KIA Automatic Vehicle. Ltd, partly occupying respectively 25%、25%、50% of the company.