Page 5 of 10
CAUTION
If vessel is to be pressurized above 125 psi
without elements installed, the central
permeate port should be plugged from the
inside. Solid adapters are available for this
purpose.
CAUTION
When lubricating the vessel chamfer,
wear protective gloves or finger cots to
prevent cuts or penetration of
fiberglass.
Replacing Elements
The following procedures are provided for information
only. Elements should be installed in accordance with
the element manufacturer’s recommendations. Where
conflicts exist, contact the element manufacturer or
Pentair Water for clarification.
To replace elements, proceed as follows:
Removing Elements
4. Install adapter if required into one end plug. At
downstream end of vessel, orient end plug
ports into desired position and push plug fully
into vessel. A sharp, forceful thrust may be
needed to enter plug seal into the vessel bore.
1. Remove heads from both ends of the vessels as
described in Opening the Vessel.
NOTE
Always remove and install element in
the direction of feed flow. The feed end
(upstream end) is the end plumbed
most directly to the pump.
2. Push element(s) out of vessel from the upstream
end.
3. For multi-element vessels, remove the intercon-
nectors and retain for reinstallation.
Installation of the End Plug Assembly
into the vessel
Inserting Elements
1. Ensure that heads are available in clean, as-new
condition before proceeding. (If in doubt as to
head condition see section on inspecting parts,
page 10).
2. Check that all required elements are ready for assem-
bly, with no dings or other damage which could
scratch the inside of the vessel.
3. Check that the interior of the vessel is clean and free
of burrs, sharp edges or other damage.
Remove any residual lubricant from the vessel bore
and work a fresh, thin film of Parker-Super O-Lube
TM
silicon lubricant into the lead-in chamfer and an area
approximately ½ inch in from the chamfer
5. Carefully insert retaining ring into its groove.
This is done by inserting the lead end of the
spiral retaining ring (end without bent tab) into
the stainless steel retaining ring groove located
in the shell, and slowly pushing the remaining
turns into the shell.
Inserting Retaining Ring into the groove
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