Parker Coral Sea, Owner'S Manual

Page: 177 / 248

TMM-200
Installation of RO elements
TORAY REVERSE OSMOSIS ELEMENTS section page:
9/11
Operation, Maintenance and Handling Manual rev.: 105
Version: October 2012
It can be useful to check for complete adaptor insertion into the
downstream element and correct position of the brine side end
plate relative to the retaining ring groove by first removing the end
plate seal (located on the circumference of the end plate). This
reduces the resistance to movement of the end plate. The end plate
seal MUST be replaced prior to final installation of the end plate.
Push the last element home until the downstream element permeate adaptor
tube is firmly connected, and brine side end plate is securely located against the
retaining ring set
To prevent premature wear of permeate seal rings, the elements cannot be
allowed to move in the axial direction. The permeate ports are typically supplied
by the pressure vessel manufacturer. Shim rings are also typically available from
the pressure vessel manufacturer to fill remaining gaps or tolerances (see
Illustration TMM-200.4).
Brine side
Feed side
Plastic washers
(“
shim rings
”)
Permeate adaptor
closed vers ion
Thrust ring (for TM-series 8inch)
Toray
TM style elements
(1 to 8 elements)
B rine flow
Feed flow
Brine flow
Brine side
Feed side
Plastic washers
(“
shim rings
”)
Permeate adaptor
closed vers ion
Thrust ring (for TM-series 8inch)
Toray
TM style elements
(1 to 8 elements)
B rine flow
Feed flow
Brine flow
Illustration TMM-200.4: Applying shim rings
After installing all membranes, check distance “A” (see Illustration TMM-200.5).
If distance “A” is bigger than the thickness of shim provided by the pressure
vessel manufacturer, use the shim to fill the excess distance. Remained distance
should be smaller than the thickness of shim. Shims must be positioned on the
upstream end of the vessel.
The risk of mechanical disconnection of permeate adapters is especially high if
the permeate header is connected to feed side of pressure vessel. The pressure
vessel brine side is preferable over the feed side for installation of the permeate
output connection to pipework.
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Coral Sea Owner's Manual
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