Payment & Shipping Terms:
|Product Name:||Ductless Fume Hood||Size:||1500*800*2350mm|
|Average Wind Spped:||0.3-0.6m/s Adjustable|
Recommended Face Velocity Of A Chemical Fume Hood Ductless Fume Hood
|A fume hood is typically a large piece of equipment enclosing five sides of a work area, the bottom of which is most commonly located at a standing work height.|
|Two main types exist, ducted and recirculating (ductless). The principle is the same for both types: air is drawn in from the front (open) side of the cabinet, and either expelled outside the building or made safe through filtration and fed back into the room. This is used to:|
a. protect the user from inhaling toxic gases (fume hoods, biosafety cabinets, glove boxes)
|b. protect the product or experiment (biosafety cabinets, glove boxes)|
|c. protect the environment (recirculating fume hoods, certain biosafety cabinets, and any other type when fitted with appropriate filters in the exhaust airstream)|
A bypass fume hood. The grille for the bypass chamber is visible at the top.
Bypass CAV hoods (which are sometimes also referred to as conventional hoods) were developed to overcome the high velocity issues that affect conventional fume hoods. These hood allows air to be pulled through a "bypass" opening from above as the sash closes. The bypass is located so that as the user closes the sash, the bypass opening gets larger. The air going through the hood maintains a constant volume no matter where the sash is positioned and without changing fan speeds. As a result, the energy consumed by CAV fume hoods (or rather, the energy consumed by the building HVAC system and the energy consumed by the hood's exhaust fan) remains constant, or near constant, regardless of sash position.
Low flow/high performance bypass CAV
"High-performance" or "low-flow" bypass CAV hoods are the newest type of bypass CAV hoods and typically display improved containment, safety, and energy conservation features. Low-flow/high performance CAV hoods generally have one or more of the following features: sash stops or horizontal-sliding sashes to limit the openings; sash position and airflow sensors that can control mechanical baffles; small fans to create an air-curtain barrier in the operator’s breathing zone; refined aerodynamic designs and variable dual-baffle systems to maintain laminar (undisturbed, nonturbulent) flow through the hood. Although the initial cost of a high-performance hood is typically more than that of a conventional bypass hood, the improved containment and flow characteristics allow these hoods to operate at a face velocity as low as 60 fpm, which can translate into $2,000 per year or more in energy savings, depending on hood size and sash settings.
|Material||cold-rolled steel sheet with 75μm epoxy resin powder coating.|
|Bench Tops||Using 12.7mm thickness solid physiochemical board table, can resist acid and alkali, wear and high temperature; the edge part adhesive processing with providing a waterproof edge, and the color of table is black.|
|Cabinet||Used 1.2mm thick of cold-rolled steel sheet production.all the steel parts by pickling, phosphating treatment surface by 75μm epoxy resin powder coating.|
|Inner Liner||Using HPL physiochemical board to make for lining plate and the flow guide plate.|
|Windows||Using 5mm thickness tempered glass,continuously variable counterweight design,window lift freely, can stop at any position.|
Huilv Lab Company
Huilv lab the Vision, Dream and creation of a team of Technocrats, with determination and resolve to Innovate was started in 1995. Having a combined experience of 22 years, Huilv lab strives for perfection on all aspects of the Business. Since Inception, we are an ISO 9001:2008 certified company.
Having our Office and Factory at Guangdong, China, we are one of the leading laboratory equipment manufacturers in the country and cater to a vast clientele across China, with a decent exposure to International Markets also. Our state of the Huilv factory is equipped with technically advanced machines & equipments. We maintain an in house Design team for design and pre -production back up who makes sure that the specific requirement & taste of the customer is clearly understood before customizing a model.
Contact us any way you like!