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#LABMANAGER EXPLOSTION PROOF EXHAUST HOW TO#
#LABMANAGER EXPLOSTION PROOF EXHAUST PLUS#

Available in various sizes and static pressure. Types include filtered or roof exhaust, panel, centrifugal, high volume low speed (HVLS) and blower fans.

#LABMANAGER EXPLOSTION PROOF EXHAUST HOW TO#

Provides a safety operational tolerance range for normal exhaust system fluctuations.įor full information on how to apply the VFC to your BSC Contact NuAire at: 80 or visit of standard and custom electric fans for ventilation.

Integrated audible and visual low exhaust alarm.

Provides the adjustability for the amount of laboratory air exhausted whether more for general exhaust or to limit loss of conditioned air for greater energy efficiency.

Has a front service panel to permit exhaust HEPA filter integrity checks.

Preserves airflow balance within the BSC in a simple dependable manner.

The characteristics of VFC Canopy are as follows: It will also let the installer/certifier field adjust to assure the proper capture slot velocity. It will provide the mechanical designer flexibility to specify to the optimal exhaust flow volume for the application. The real benefit of the VFC is the adjustability both through the design and installation phases. If energy efficiency is desired, then use the minimum canopy air volume (i.e.

#LABMANAGER EXPLOSTION PROOF EXHAUST PLUS#

100 cfm plus cabinet exhaust volume) that offers the ability for on-site adjustment (slot area on canopy) for optimal capture velocity (i.e. If it is found that there is not a specific exhaust requirement, then it is suggested to use a target canopy air volume (i.e. Laboratory size, pressure, air change rate, heat load and other exhausting devices can all have an impact on the designed exhaust volume of the VFC.

The answer to the above question becomes one of what produces the optimal mechanical design. The VFC now can be used with as little as 5% more or up to 100% more in some cases depending upon cabinet size. With the VFC offering a range of exhaust volume possibilities, the question becomes, what exhaust volume should be designed into the laboratory mechanical system? Traditionally, exhaust canopies were designed to exhaust approximately 25% more air volume that the cabinets exhaust volume. However, now the VFC has variable slot areas, so the exhaust requirement that is added to the cabinet exhaust volume for the total exhaust volume requirement is also variable for the laboratory mechanical design.

Traditionally, exhaust canopies using a fixed slot area provided a fixed exhaust volume requirement that was added to the cabinet exhaust volume for the total exhaust volume requirement used for the laboratory mechanical design. VFC Integration into a Laboratory Mechanical Design Upon canopy low flow or loss of exhaust, the integrated airflow monitor will provide both an audible and visual alarm, and then energize a DC solenoid opens the front panel allowing the BSC inflow to be maintained at NSF recommended inflow velocities. NuAire’s Variable Flow Canopy (VFC) employs adjustable slide plates to vary slot height corresponding to the amount of room exhaust volume desired. The air gap essentially insulates the BSC from potential variations of airflow in the facility exhaust system, particularly if multiple BSC’s are connected to the same exhaust blower system. While searching for that extra degree of safety in your laboratory or trying to remove fumes/gases from the laboratory environment NuAire has the proper canopy connections to exhaust your Class II, Type A2 Biological Safety Cabinet.Ĭanopy Transitions provide an air gap between the exhaust efflux of the BSC and the transition.