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Door Gasket Replacement 

 

If the gasket on the access door becomes damaged, it can be replaced with new gasket by the user.  You may 
purchase replacement gasket from Camfil (see Spare Parts and Accessories, page 18).  The following steps 
should be taken to replace a door gasket: 
 
1.  Remove the door with the damaged gasket from the filtration housing.  The filtration system will have to be 

shut down for removal, consult you safety personnel first.   

 
2. 

Warning: This step may require the use of sharp objects.  Take extreme caution when performing 
this step.  

With the door moved to a suitable work area, remove the damaged gasket from the door by 

cutting, tearing or pulling until all of the gasket is removed from the door.  Scrape or cut off the remaining 
adhesive caulking from the door.  Remove any remaining adhesive caulking, dirt, grease, with a clean wipe 
or cleaning solvent. 

 
3.  Position door so the hemmed edge is up and dry fit the new gasket to the door just like previous gasket 

was installed, and cut gasket to length.  Allow for 3/4” overlap when cutting, this is to compress the gasket 
edges back together when performing the final installation.  It is important to cut gasket as straight as 
possible. 

 
4.  Locate adhesive caulking (DC 732 or equal) and caulking gun.  Cut tip off adhesive tube so that a bead of 

caulking approximately 1/8” to 3/16” diameter will be produced.  Deposit a continuous bead of caulking 
(1/8” to 3/16” diameter) inside the bottom of the extruded gasket channel. 

 
5.  Start placing gasket on door so that the hemmed edge of door will lay inside the bottom of the extruded 

gasket channel (refer to illustration).  With one hand, use your thumb and index finger to gently pinch the 
extruded gasket together while placing the gasket with the other hand until the entire door is covered.  
Apply an even layer of caulking over the face area of the cut ends (do not apply to thick).  Install ends 
together over door while compressing gasket.  Apply a very thin layer of caulking around the outside edge 
of the joint. 

 
6.  Check the alignment of the gasket and reposition gasket if needed while caulking in pliable.  Gently lift and 

turn door over on table with the gasket face down.  Apply caulking around the perimeter where the top edge 
of the gasket meets the door.  The adhesive caulking generally takes 24 hours to fully cure. 

 
7.  After the adhesive caulking fully cures, the door can be reinstalled on the housing. 

Summary of Contents for FB Series

Page 1: ...Installation Operation and Maintenance Manual Camfil Installation Operation Maintenance Manual FB Housing 3401i 0404 Camfil clean air solutions Camfil FB Series Fluid Seal Bag in Bag out Filter Housing ...

Page 2: ...r changing a contaminated filter Since all types of housing designs and configurations cannot be addressed by a single manual or set of safety procedures we propose a proven method of replacing contaminated filters with clean filters Once this method is understood by both maintenance personnel and safety personnel they can adapt the most suitable method to use based on the housing location type of...

Page 3: ...lation of Filtration Housing 6 Installation of New Filter s or Adsorber s Prior to New System Startup 6 Filter Change Out Replacing Contaminated Filter s or Adsorber s 10 Filter Change Out Overview 13 Maintenance 14 Locking Mechanism Adjustment 17 Spare Parts and Accessories 18 ...

Page 4: ...he 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 seal...

Page 5: ...OUT BAGSIZE FINAL FILTER MODELNO PREFILTER MODELNO CAUTION Remove rod for prefilter Remove rod for final In Place Test Section Housings Camfil offers qualified In Place Test Section housings to assist qualified testing technicians while performing In Place Testing of filters or adsorbers These test sections have proven to perform as good or better than the conventional method of in place testing C...

Page 6: ...ng All sections of the filtration system including fans dampers etc should be complete and ready for operation The overall filtration system should be securely mounted to a curb base or structural support 5 Following installation of the ductwork and filtration housing the system should be cleaned to remove dust or debris before installing new filter s adsorber s into the system Installation Of New...

Page 7: ...chanism Make sure the filter adsorber is correctly orientated when placing inside of the filtration housing The filter clips should be positioned on the top and bottom of the filter see pictures The filter shall be installed with the pleats or separators in the vertical position Install adsorbers with the carbon beds in the horizontal position Push the filter s adsorber s to the back of the filtra...

Page 8: ...wards the locking handle latch see illustrations and pictures on this page and pictures on next page This allows the fluid seal channel on the filter adsorber to seal with the knife edge sealing surface Lock the locking mechanism handle with the handle latch Slowly close the locking mechanism handle by pushing the handle towards the handle latch ...

Page 9: ...ecurity strap and secure any excess strap so that it does not interfere with the door seal when the door is installed After the change out bag has been secured with the security strap extend the bag out completely Fold and roll the bag towards the housing squeezing trapped air out of the folded rolled portion of the bag until the bag is tucked neatly between the bagging ring and the filter access ...

Page 10: ...taminated filter s adsorber s the airflow through the filtration system must be stopped This can be performed by shutting down the system or bypassing the airflow through the system to another system when applicable To minimize possible contamination close upstream and downstream dampers if equipped It is recommended that protective clothing gloves and respirators be worn when changing filters wit...

Page 11: ...in the middle of section Tape over exposed edges where bag was cut Remove the contaminated filter adsorber for disposal A banding kit can also be used as shown in picture see Spare Parts and Accessories page18 Remove the change out bag security strap and gently position the bag s shock cord between the two raised ribs of the bagging ring If the filtration system only has a single filter proceed to...

Page 12: ...talled inside housing using a new change out bag for each new filter adsorber installed For filtration housings that contain more than one filter adsorber it may be necessary to push one filter as far inside the housing as possible then install the second filter to help push the first filter to the back of the housing 8 Once all filters adsorbers are installed in the housing secure the change out ...

Page 13: ...GH HOUSING BY SHUTTING DOWN THE SYSTEM OR CLOSING UPSTREAM AND DOWNSTREAM ISOLATION DAMPERS BEFORE REMOVING DOOR CONSULT YOUR SAFETY OFFICER AND READ INSTRUCTION MANUAL TO INSURE PROPER FILTER INSTALLATION AND CHANGE OUT CAUTION Washington North Carolina 27889 252 975 1141 Doorknob Installation Ratchet Attachment can assist during tightening of doorknobs To order from Camfil see Spare Parts and Ac...

Page 14: ...act The filtration system is no longer functioning properly when any of the following occurs A periodic site inspection routine maintenance checks or other planned surveillance testing reveals torn gaskets broken welds stripped threads on door bolts or any other indication that the system s ability to contain the process airstream has been compromised To assure that the filtration system is mainta...

Page 15: ...r when performing the final installation It is important to cut gasket as straight as possible 4 Locate adhesive caulking DC 732 or equal and caulking gun Cut tip off adhesive tube so that a bead of caulking approximately 1 8 to 3 16 diameter will be produced Deposit a continuous bead of caulking 1 8 to 3 16 diameter inside the bottom of the extruded gasket channel 5 Start placing gasket on door s...

Page 16: ...king mechanism does not fall This could damage the housing or injure the personnel working on the locking mechanism Measure the distance which the 3 8 locknuts are positioned on the locking mechanism adjustment refer to Detail No 2 on next page this dimension will be used when replacing the new locking mechanism Remove two 2 3 8 locknuts from backside of adjustment studs connected to pivot arms an...

Page 17: ...anism do not force the handle closed The locking mechanisms are preset at the factory when installed in a filtration system from the factory with the correct tension on the locking handle The handle should move fairly easily until within approximately 1 of the locking handle latch then moderate pressure should be applied to latch and secure the handle If the handle takes more than moderate pressur...

Page 18: ...nge Out Bag Size Camfil offers additional parts and accessories which can be used for repairing door gaskets or assisting in the Filter Change Out Door Gasket Camfil Part Number M32001001 order by the foot to determine length need measure circumferance of door which the gasket is to be replaced and add one foot extra carry to next highest foot length Doorknobs Camfil Part Number M36001000 Change O...

Page 19: ..._________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ______________________________________...

Page 20: ...pi Laval Quebec Conover North Carolina Washington North Carolina Concord Ontario World Wide Manufacturing Locations Belgium France Germany Ireland Malaysia Sweden Switzerland United Kingdom Camfil http www camfil us Represented by Camfil has a policy of continuous research development and product improvement We reserve the right to change designs and specifications without notice Camfil Inc United...

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