Una vitrina de gases canalizada es un tipo de sistema de ventilación que funciona principalmente para brindar protección al personal contra humos, vapores y polvo tóxicos. Este equipo de contención está conectado a un conducto por donde pasan los contaminantes antes de ser expulsados al medio ambiente. Su función secundaria incluye la protección contra derrames químicos, reacciones descontroladas e incendios al actuar como barrera física.
La contención y el rendimiento superiores de las vitrinas de gases canalizadas Esco Frontier® cumplen con las normas ASHRAE 110 y EN 14175. Estas vitrinas de gases están diseñadas con una aerodinámica ajustada con precisión, total flexibilidad de sistemas y diseño, estética y ergonomía para brindar una extraordinaria seguridad y comodidad al usuario.
Características imprescindibles a considerar:
- Cumplimiento de las normas ASHRAE 110 y EN 14175 para una contención superior de gases
- Construcción robusta para resistir productos químicos incluso a altas temperaturas
- Interruptores basculantes básicos para un funcionamiento sin complicaciones
- Variedad de configuraciones de superficie de trabajo para adaptarse a diferentes aplicaciones
- Ofrece una amplia gama de accesorios y opciones
- Diseño exclusivo de deflectores para evitar la acumulación de humos en la zona de trabajo
- Equipada con funciones de seguridad tales como: tope de límite de guillotina y sistema de monitorización del flujo de aire
- Características ergonómicas como guillotina inclinada e iluminación interna
- Servicio gratuito FiltraCheck™ para evaluar la aplicación y recomendar el modelo adecuado de vitrina de gases canalizada
El interruptor basculante tiene botones básicos para el funcionamiento de la luz y del extractor.
El controlador por microprocesador Sentinel™ Silver cuenta con una pantalla LCD de una línea para mostrar el estado del flujo de aire y la hora. Dispone de teclas táctiles para ventilador, lámpara, toma de corriente y auxiliar. La cabina emitirá alarmas audibles y visuales durante incidentes no deseados.
EFH
Frontier® Mono
Specifications:
- ASHRAE 110-2016 certified
- Single wall design
- Worktop and service fixtures are installed on the base cabinet
- No sash sloping
- Phenolic resin liner and baffle
- Available sizes: 4, 5 and 6 ft
EFD-A
Frontier® Duo- A Series
Specifications:
- Dual-wall construction
- With black color phenolic resin as default worktop
- Has service fixtures
- Ergonomic 8° sloped front sash
- Available sizes: 4, 5, 6 and 8 ft
EFD-B
Frontier® Duo- B Series
Specifications:
- ASHRAE 110-2016 certified
- Microprocessor control system
- Dual-wall construction
- With black color phenolic resin as default worktop
- Has service fixtures
- Ergonomic 8° sloped front sash
- Available sizes: 4, 5, 6 and 8 ft
EFA
Frontier® Acela
Specifications:
- ASHRAE 110-2016 certified
- Tri-wall construction
- Low energy-consumption, high performance fume hood
- 5° sloped front sash design
- Superior containment at 0.3 m/s face velocity
- Available sizes: 4, 5, 6 and 8 ft
EFQ
Frontier® Acid Digestion
Specifications:
- ASHRAE 110-2016 compliant
- Tri-wall construction
- Designed for acid-digestion applications (except perchloric acid)
- Built with u-PVC or PP internal surface has polycarbonate sash to prevent etching
- Available sizes: 4, 5, 6 and 8 ft
EFA-M
Frontier® Acela Mining
Specifications:
- ASHRAE 110-2016 compliant
- Tri-wall construction
- Provides the highest level of containment and protection against highly corrosive chemicals at high temperature
- With European-made ceramic worktop
- Available sizes: 4, 5, 6 and 8 ft
EFA-XP
Frontier® Acela XP
Specifications:
- Tri-wall construction
- Provides the highest level of containment and almost no possibility of sparks in the work zone
- Standard accessories include: Explosion proof light fixture, Explosion proof Electrical Socket Outlet, Explosion proof ON-OFF light switch, Explosion proof Junction Box
- Available sizes: 4, 5, 6 and 8 ft
EFP
Frontier® Perchloric Acid
Specifications:
- ASHRAE 110-2016 compliant
- Tri-wall construction
- Ideal when handling hot perchloric acid and nitric acid
- Built with seamless stainless steel interior chamber
- Equipped with a wash down system
- Has a scrubber as a compulsory accessory
- Available sizes: 4, 5, 6 and 8 ft
EFF
Frontier® Floor Mounted
Specifications:
- ASHRAE 110 compliant
- Tri-wall construction
- Designed to provide comfortable space when dealing with large apparatus and containers of hazardous materials.
- Large internal height
- Available sizes: 4, 5, 6 and 8 ft
EFI
Frontier® Radioisotope
Specifications:
- ASHRAE 110-2016 compliant
- Designed for handling radioactive materials
- Full stainless-steel interior for easy cleaning and decontamination
- Available sizes: 4, 5, 6 and 8 ft
PPH
Frontier® PPH
Specifications:
- ASHRAE 110-2016 certified
- Highest level of protection and containment against highly corrosive acids
- Full polypropylene interior and exterior makes it metal free and suitable for trace metal analysis
- Available sizes: 4, 5, 6 and 8
· Chemical Transfer
· Dilution
· Mixing
· Buffer Preparation
· Applications with minimal heating
· Titration
· pH testing
· Dilution
· Mixing
· Buffer Preparation
· Applications with minimal heating
· Titration
· pH testing
The single, dual, tri-wall accounts for the ducted fume hood’s durability and capability to have service fixture on the external side walls of the fume hood. The more the number of walls and layers, the stronger the ducted fume hood is in terms of construction and ability to withstand chemicals.
EFH is the only single wall fume hood, that’s is why the base cabinet (EBC) is required since the worktop and service fixtures are connected there.
EFH is the only single wall fume hood, that’s is why the base cabinet (EBC) is required since the worktop and service fixtures are connected there.
Chemicals can be stored during an ongoing analysis but ducted fume hoods are not designed for permanent chemical storage. Items placed inside the fume hood can interfere with air flow and may cause contaminants to be drawn in.
Base cabinets are the appropriate chemical storage. Esco offers a wide range of storage solutions for general purposes, corrosive, and flammable substances.
Base cabinets are the appropriate chemical storage. Esco offers a wide range of storage solutions for general purposes, corrosive, and flammable substances.
Chemicals are exhausted out into the atmosphere untreated so fume hoods are inappropriate for waste disposal. Always follow proper chemical waste disposal protocols designated in your laboratory.
Face velocity is the measurement of speed at which air enters the ducted fume hood's opening. Face Velocity measurement is one of the tests recommended by ASHRAE 110 to check whether a fume hood is effective in containing chemical fumes. per ASHRAE 110, a properly working ducted fume hood should have a face velocity between 0.30-0.60 m/s.
The ASHRAE 110-2016 standard is a comprehensive method for evaluating the operator safety of fume hoods by determining quantitatively and repeatably how well the fume hood contains vapors released in the workzone. This American standard has three parts:
a. Airflow Visualization - Local and gross airflow visualization tests conducted to observe airflow patterns inside work chamber
b. Face Velocity Measurements - Face velocity and uniformity tested at 100% and design sash opening position
c. Tracer Gas Containment - uses Sulfur hexafluoride to test if there are leakage across the fume hood.
a. Airflow Visualization - Local and gross airflow visualization tests conducted to observe airflow patterns inside work chamber
b. Face Velocity Measurements - Face velocity and uniformity tested at 100% and design sash opening position
c. Tracer Gas Containment - uses Sulfur hexafluoride to test if there are leakage across the fume hood.
EN 14175 is a harmonized European standard which supercedes the former national standards of Germany, the UK and France. A key element of the EN 14175, which is not present in the American ASHRAE 110 standard, is the robustness test, which simulates airflow disturbance in front of the hood.
a. Location
Location impacts the nature and extent of external airflow disturbances which may affect a ducted fume hood's performance. It is advisable to have a site assessment before purchasing a ducted fume hood.
b. Application
The types of chemicals, quantity, temperature and nature of handling are important factors to consider. There is a wide range of ducted fume hood models, each designed to handle a specific type of chemical and application.
Location impacts the nature and extent of external airflow disturbances which may affect a ducted fume hood's performance. It is advisable to have a site assessment before purchasing a ducted fume hood.
b. Application
The types of chemicals, quantity, temperature and nature of handling are important factors to consider. There is a wide range of ducted fume hood models, each designed to handle a specific type of chemical and application.
a. Sash Stop
This safety feature limits sash movement beyond 457 mm (18") to encourage users to work at safe levels. When raised above said height, the sash will automatically and gently fall back to safe levels through Esco's Creep Down Mechanism. This feature can only be disabled by a key, which permits Laboratory Managers or Safety Officers to restrict hood operation.
b. Airflow Monitor
Esco's Sentinel XL Airflow monitor alarm is an optional accessory that accurately monitors facev elocity and generates an alarm when inflow decreases to unsafe levels. This also has a sash alarm that activates when the sash is not in the recommended height level.
This safety feature limits sash movement beyond 457 mm (18") to encourage users to work at safe levels. When raised above said height, the sash will automatically and gently fall back to safe levels through Esco's Creep Down Mechanism. This feature can only be disabled by a key, which permits Laboratory Managers or Safety Officers to restrict hood operation.
b. Airflow Monitor
Esco's Sentinel XL Airflow monitor alarm is an optional accessory that accurately monitors facev elocity and generates an alarm when inflow decreases to unsafe levels. This also has a sash alarm that activates when the sash is not in the recommended height level.
Filtracheck™ is a trademark service provided by Esco. Customers who intend to purchase a fume hood but are unsure whether the cabinet is suitable for their application, can fill up the FiltraCheck™ form. Customers will receive an email with the model recommendation. Depending on the type of chemicals used, the document may also contain a list of procedures, warnings, etc. that will help in ensuring a safer laboratory working environment.
Frontier® Mono (EFH) - 6 mm, tempered glass
Frontier® Duo (EFD) - 5 mm, tempered glass
Frontier® Acela (EFA) - 6 mm, tempered glass
Frontier® Acid Digestion (EFQ) - 5 mm, Polycarbonate
Frontier® Duo (EFD) - 5 mm, tempered glass
Frontier® Acela (EFA) - 6 mm, tempered glass
Frontier® Acid Digestion (EFQ) - 5 mm, Polycarbonate