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Zhejiang Yuede Environmental Protection Technology Co., Ltd. is located at 505 Lanshang Road, Xinwan Street, Qiantang District, Hangzhou City. China Kitchen Centrifugal Fan Manufacturers and Kitchen Centrifugal Fan Factory.
The company is mainly engaged in the research, development, production, and sales of oil fume purification and exhaust equipment, and is one of the few manufacturers in the industry with the ability to develop electronic software systems and design sheet metal structures.
The products specifically include oil fume purifiers, oil fume purification all-in-one machines, intelligent cleaning all-in-one machines, fans, fresh air cooling fans, and intelligent smoke exhaust systems.
Since 2020, the company has accumulated 2 invention patents and 31 utility model patents. Among them, the practical patent - the splicing technology of all-in-one machines has been adopted by more than 80% of peers; The patents related to intelligent cleaning and intelligent smoke exhaust systems are breakthrough or leading technologies in the industry. Traditional product companies such as oil fume purifiers and fans have optimized their structure and process to achieve better results and higher grades.
Kitchen Centrifugal Fan Manufacturer
-- Steady & Reliable Manufacturer --
Introduction
A kitchen centrifugal fan is the mechanical heart of a commercial kitchen exhaust ventilation system — the device that creates the airflow through the hood, duct, and purification components, overcoming the system's total static resistance to discharge cooking fumes outdoors at sufficient volume and pressure. Commercial kitchen centrifugal fans are designed for continuous operation in the demanding conditions of cooking exhaust: temperatures of 40–80°C, high humidity, grease-laden airstreams, and — in many installations — exposure to the high-frequency vibration and flow turbulence generated by large cooking equipment directly below.
Yuede's smoke extraction cabinet series — the company's kitchen centrifugal fan product line — uses galvanized steel housings with single-piece top, bottom, and flange panels to minimize structural joints, improve rigidity, and simplify sealing. Available in both backward-curved and forward-curved impeller designs, Yuede kitchen centrifugal fans are matched to kitchen exhaust system static pressure and airflow requirements and are available with standard direct-drive motors or with VFD-compatible IE3/IE4 motors for variable speed DCKV installations.
Products & Solutions
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Specification
| Parameter | Detail |
|---|---|
| Fan Types | Backward-curved centrifugal (BC); Forward-curved centrifugal (FC) |
| Airflow Range | 500 – 30,000 m³/h (single unit); larger flows by parallel arrangement |
| Static Pressure Range | 100 – 1,500 Pa (model-dependent) |
| Motor Power Range | 0.37 kW – 37 kW |
| Motor Efficiency | IE3 standard; IE4 optional for VFD applications |
| Impeller Material | Galvanized steel (standard); 304 SS (optional for corrosive exhaust) |
| Housing Material | 1.5 mm galvanized steel; single-piece top/bottom panels; sealant at all joints |
| Bearing | Grease-lubricated double-row ball bearings; L10 bearing life >40,000 hours |
| VFD Compatibility | All models VFD-compatible; insulated bearings on motors ≥11 kW |
| Noise Level | 55–75 dB(A) at 1 m (model-dependent); acoustic enclosure option |
| Temperature Rating | Continuous 80°C; short-term 120°C |
| Mounting | Roof-mount, wall-mount, or inline duct configurations |
| Certification | CE; motor IE3/IE4 efficiency class; ISO 9001 manufacturer |
* Fan selection requires system total static pressure calculation. Yuede provides fan selection calculation with system resistance inputs. Acoustic enclosures and vibration isolation mounts available for noise-sensitive installations.
Application
- Commercial Restaurant Kitchen Exhaust: The primary application — single or multiple centrifugal fans drawing cooking fume exhaust from hood(s) through purification equipment and exhausting to atmosphere via rooftop or wall discharge. Fan selection is based on total system airflow and static pressure loss through all components from hood inlet to discharge outlet.
- Hotel & Large Institutional Kitchen Exhaust: Large kitchen installations with multiple exhaust hoods, long duct runs, and high-efficiency ESP purifiers require higher static pressure fans. Yuede's backward-curved centrifugal fans with higher static pressure ratings are appropriate for these demanding applications.
- Variable Speed DCKV Installations: Yuede's centrifugal fans with IE3/IE4 motors and insulated bearings are specified as the exhaust fan in DCKV (demand control kitchen ventilation) systems where VFD speed control reduces fan energy by 30–60% compared to fixed-speed operation.
- Replacement Fan for Existing Kitchen Ventilation Systems: Commercial kitchen fans typically require replacement after 10–15 years of service. Yuede's fan range covers the common airflow and static pressure combinations encountered in existing kitchen installations, with standardized duct connection flanges that facilitate replacement without ductwork modification.
- Food Court and Multi-Tenant Kitchen Shared Exhaust: Shared exhaust systems serving multiple kitchen tenants via a centralized exhaust riser require fans with the capacity and static pressure to overcome both the shared duct resistance and the individual kitchen branch resistances — applications where Yuede's higher-pressure backward-curved fan models are typically specified.
- Q: How do I select the correct kitchen centrifugal fan for my system?
- A: Fan selection requires two inputs: the required exhaust airflow (m³/h) and the total system static pressure (Pa) — the sum of pressure losses through all components from hood inlet to discharge outlet, including hoods, filters, ESP, ductwork, duct fittings, and discharge grille. Yuede's technical team can perform the fan selection calculation if you provide the system layout, equipment list, and duct dimensions. Incorrect fan selection (under-sized fan) is the most common cause of inadequate kitchen ventilation performance.
- Q: What maintenance does a kitchen centrifugal fan require?
- A: Main maintenance items: quarterly visual inspection of impeller for grease buildup and cleaning if required (grease on impeller causes imbalance and vibration); 6-monthly bearing re-greasing (or per manufacturer schedule); annual motor insulation resistance test; annual belt tension check and adjustment for belt-drive models. VFD-connected fans should have VFD filters cleaned quarterly. Yuede provides a maintenance schedule with every fan supply.
- Q: Can kitchen centrifugal fans be used in fire mode for smoke extraction?
- A: Standard kitchen exhaust fans are rated for normal cooking exhaust temperatures (80°C continuous, 120°C short-term). They are not rated as fire-rated smoke extract fans to EN 12101-3 or equivalent, which require operation at 300°C or 400°C for extended periods. For kitchens where the exhaust system must also serve as a fire mode smoke extract system, fire-rated fans to the appropriate standard must be specified. Please clarify fire system requirements with your fire safety engineer at project design stage.
- Q: Is the fan compatible with a VFD for variable speed operation?
- A: Yes. All Yuede kitchen centrifugal fan models with IE3 or IE4 motors are compatible with VFD speed control. For motors 11 kW and above, insulated bearings are fitted as standard to prevent VFD-induced bearing current damage. The VFD should be sized for the motor's full load current with an appropriate safety factor, and should be commissioned with the fan operating point curve to ensure stable operation across the speed range. Yuede can recommend a compatible VFD from its DCKV system range for coordinated supply.
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Zhejiang Yuede Environmental Protection Technology Co., Ltd.
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