Camfil FB Series Manuale di installazione, funzionamento e manutenzione - Pagina 4
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Introduction To Bag-In/Bag-Out Housings
Camfil's line of Bag-In/Bag-Out housings are "containment" design, side loading filter housing used for critical
applications. These filter housings have been designed to meet the air filtration needs of industries and
research facilities that handle dangerous or toxic, biological, radiological or carcinogenic materials. To
minimize exposure to these harmful contaminates, while replacing and handling contaminated filters, the
housing incorporates a heavy duty plastic bag covered access port. Once the initial filters are installed and the
bag attached and secured, all filters, both new and contaminated are handled through the bag, using
procedures described throughout this manual, hence the name "Bag-In/Bag-Out".
The filter-to-housing seal is accomplished with two filter locking mechanisms which forces the fluid seal channel
of the filter against the housing knife-edge sealing surface, thereby making the knife-edge seal inside the fluid
(gel) creating a positive airtight seal. The filter locking mechanism is operated from inside the housing and
designed to prevent the access door from being installed without the locking mechanism properly secured.
When the initial filters are installed or the contaminated filters are changed out, the system must be in-place
leak tested to assure the filters are sealed properly and all contaminants will be filtered from the air stream.
Camfil's Bag-In/Bag-Out housing can be designed in an assortment of arrangements, depending on the user's
requirements and the types of filters or adsorbers installed inside the housings. Camfil's Bag-In/Bag-Out
housings come in various sizes. Sizes range from one half wide housings up to three wide housings. The
housings can be supplied individually as small filtration systems or as several housing modules. These
modules can be factory welded and stacked together to create a variety of larger filtration systems to meet the
customer's needs. Regardless of the filter housing size you may have, the filter change-out procedure
described in the manual will remain the same.
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