Custom UV Grease Removal System

UV Grease Removal System Manufacturer

-- Steady & Reliable Manufacturer --

Introduction

A UV grease removal system uses ultraviolet-C photons to decompose cooking grease molecules in the vapor phase as they pass through the exhaust airstream — targeting the submicron grease aerosol fraction that mechanical baffle filters cannot capture efficiently. While baffle filters and mesh screens intercept visible droplets and larger grease particles, the fine grease vapor and submicron aerosol fraction passes through mechanical filtration and deposits on downstream ductwork and fans. UV irradiation at 185 nm and 254 nm wavelengths attacks these molecules photochemically, breaking them into less complex compounds and reducing the grease deposition rate in downstream systems.

In practice, a UV grease removal system is most effective as a secondary treatment stage following mechanical pre-filtration. Yuede designs UV grease removal modules in both hood-integrated and duct-mounted configurations, with lamp arrays sized to the duct cross-section and airflow velocity to deliver effective UV dose to the grease-laden airstream. Systems are available as standalone UV modules or as part of Yuede's integrated kitchen ventilation packages combining mechanical filtration, UV treatment, and electrostatic precipitation.

Specification

ParameterDetail
UV TechnologyLow-pressure mercury UV-C (185 nm + 254 nm) or UV-C LED
UV Dose Delivered40–200 mJ/cm² (design-point dependent on airflow)
Grease Reduction (vapor phase)≥60–80% of submicron grease aerosol fraction
Module Housing304 stainless steel duct module; UV-reflective interior
Duct ConnectionCircular or rectangular flanged; custom sizes available
Face Velocity1.5–4.0 m/s (design range for effective UV dose)
Lamp ConfigurationSingle lamp to multi-lamp array depending on duct width
Lamp Power40W / 60W / 80W per lamp (model-dependent)
ControlOn/off interlock with kitchen exhaust fan; lamp failure alarm
Maintenance AccessHinged access panel for lamp inspection and replacement
InstallationHorizontal or vertical duct mount; supports included
CertificationCE; IEC 62471 UV safety; GB/T 18801 (China)

* UV module can be combined with downstream activated carbon filter for enhanced odor removal. System design including lamp count and UV dose calculation provided with quotation.

Application

  • Extending Duct Cleaning Intervals: By decomposing grease vapor before it condenses on duct walls, UV grease removal systems reduce the rate of grease deposition in exhaust ductwork — allowing duct cleaning intervals to be extended from quarterly to semi-annually or annually in many kitchens, reducing maintenance cost and disruption.
  • Protecting Fan and ESP Components: Reducing the grease load reaching the exhaust fan and downstream electrostatic precipitator extends the service life of these components and reduces cleaning frequency — particularly valuable for fans located at roof level where maintenance access is expensive and disruptive.
  • Supplementary Grease Treatment for High-Load Kitchens: Wok cooking, charcoal grilling, and deep frying generate airstreams with very high grease content. UV grease removal as a secondary stage after mechanical baffle filtration addresses the fine aerosol fraction that mechanical filtration alone misses.
  • Retrofit Grease Reduction for Existing Systems: Where existing kitchen ventilation systems are experiencing excessive grease buildup in ductwork, UV grease removal modules can be retrofitted into the existing duct run as an upgrade without replacing the entire ventilation system.
  • Low-Height Installations with Short Duct Runs: Kitchens with limited vertical duct height between the hood and the discharge point have limited space for downstream treatment. UV grease removal provides grease treatment in a compact module that fits within constrained duct layouts.
  • Q: How much can a UV grease removal system reduce duct cleaning costs?
  • A: The reduction in duct cleaning frequency depends on your cooking type and volume. Customers using Yuede UV grease removal as a secondary stage after mechanical filtration typically report extending duct cleaning intervals by 50–100% — for example, from quarterly to semi-annual, or from semi-annual to annual. The actual savings depend on your duct cleaning contractor costs and the length of your duct run, but for a large kitchen with 50+ meters of ductwork, the savings can be substantial.
  • Q: Where in the duct run should the UV module be installed?
  • A: The UV module should be installed after the mechanical grease filters (baffle filters) that remove the bulk liquid grease fraction. Installing the UV module downstream of mechanical filtration protects the UV lamps from heavy grease droplet deposition and ensures the UV irradiation is applied to the submicron aerosol and vapor fraction that mechanical filtration passes. The UV module is typically located in the first horizontal duct run above the exhaust hood.
  • Q: Can UV grease removal help with fire safety compliance?
  • A: Yes, indirectly. By reducing grease deposition rates in ductwork, UV grease removal helps maintain lower grease accumulation levels between scheduled duct cleanings. Since excessive duct grease is a primary cause of commercial kitchen duct fires, maintaining lower accumulation levels reduces fire risk. UV grease removal systems should be considered a supplement to, not a replacement for, regular duct cleaning per NFPA 96 or equivalent local fire codes.
  • Q: Are UV grease removal systems suitable for all types of commercial cooking?
  • A: UV grease removal is most effective for cooking types that generate high concentrations of grease vapor and submicron aerosol — wok cooking, deep frying, charbroiling, and high-volume grilling. For steam-heavy cooking (steamers, combi ovens) with low grease output, the benefit is smaller. For kitchens with diverse cooking equipment, UV treatment benefits the overall exhaust airstream even if only some equipment generates high grease loads.
About Us
Zhejiang Yuede Environmental Protection Technology Co., Ltd.

Zhejiang Yuede Environmental Protection Technology Co., Ltd. is located at 505 Lanshang Road, Xinwan Street, Qiantang District, Hangzhou City. China UV Grease Removal System Manufacturers and UV Grease Removal System 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.

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