Table of Contents
Advertisement
17.0 BLADDER REPLACEMENT PROCEDuRES FOR CCS uNiTS
17.1 MATERiALS
•
Cotton clothes line
•
Large jar of Vaseline®
•
sharp pocket knife
•
Appropriate size replaced bladder
•
Flashlight
•
Drop cloth
17.2. vESSEL PLACEMENT
17.2.1 Disconnect the vessel from the existing piping system.
17.2.2 Remove sight gauge assembly.
17.2.3 Place the vessel in a horizontal position with ALL flanged connections easily accessible (vertical vessel
has 2 flanged connections, horizontal vessel has 4 flanged connections).
17.3. REMOvAL OF DAMAGED BLADDER
17.3.1 Remove all flange bolting and flanges
17.3.2 CAREFULLY remove plastic support pipes through the open nozzles (1 pipe in vertical vessels, 2 pipes
in horizontal vessels.
NOTE: For horizontal vessels, remove the vertical tube first through the top flange, followed by the horizontal
tube through either end flange.
17.3.3 Carefully fold over ALL bladder nozzles EXPECT the nozzle where the bladder is to be removed, and
push them inside the vessel.
17.3.4 Clean an area on the floor or ground large enough to lay down the fully opened bladder without cutting
or puncturing it. Place a drop cloth or polyethylene sheet over the clean area to place the bladder on.
17.3.5 Reach inside the bladder nozzle (which is still in its original position) as far as possible and grasp the
bladder which is inside the vessel and begin pulling it into the nozzle so that the bladder nozzle itself
moves free of the vessel. DO NOT PULL ON THE BLADDER NOzzLE. At this point, take both hands
and begin squeezing the bladder together and pulling it through the vessel nozzle. Continue this opera-
tion until the bladder has been removed from the vessel. UsE CARE WHEN REMOVING BLADDER
NOzzLEs FROM THE VEssEL, remember, DO NOT PULL ON THE BLADDER NOzzLEs.
17.4. iNSERTiON OF THE NEW BLADDER
17.4.1 Clean an area on the floor or ground large enough for the new bladder to be fully opened up without cut-
ting or puncturing it. Place a drop cloth or polyethylene sheet over the clean area to place the bladder
on.
17.4.2 Using a pole or long rod, feed sufficient lengths of clothes line to reach from each vessel nozzle (1 noz-
zle on vertical vessels, 3 nozzles on horizontal vessels) to the vessel nozzle which the bladder will be
inserted through, with enough extra line to tie it to the vessel nozzle flange and the appropriate bladder
connection.
17.4.3 Lay out the new bladder so that the A.I.R. stamp on both end flanges are on the top and parallel with
each other. CAUTION: When inserting the bladder, the A.I.R. stamp must be kept in the same orienta-
tion to ensure against twisting of the bladder in the vessel (which would cause a failure of the bladder
when filling it).
21
Advertisement
Table of Contents
