IONPURE
®
LX CEDI Modules
Page 16 IP-MAN-LX-1220-EN.pdf
3.3. Water Connection Configuration and Fittings
Make sure all upstream pretreatment equipment and piping have been
thoroughly flushed with particle-free water before connecting them to
the LX Module. Flushing removes any particles left in the piping from
cutting and assembly. If particles remain, they could plug the passages inside the LX
Module.
NOTE: Failure to properly flush the pretreatment water system of installation
debris to drain prior to flowing water to the CEDI can result in particulate fouling
that may be irreversible.
Ionpure LX modules have a cast aluminum endplate with through-holes to allow access
to the endblock piping connections described in Table 2-1. There are four (4) connection
points:
· Product (Dilute) Inlet – top left
· Product (Dilute) Outlet – bottom right
· Reject (Concentrate) Inlet – top right
· Reject (Concentrate) Outlet – bottom left
The above connection descriptions are for co-current, downflow (top-to-bottom)
operation, which has been the preferred mode of LX module operation for nearly 20 years.
LXHI-3 and LXZ-5 modules must be operated downflow for optimum performance.
LXEU-4 and LXX-4 modules can also be operated upflow, which may be convenient due
to piping constraints in certain situations. Please check with your local Ionpure Technical
Support if you are considering upflow operation.
Detailed dimensions of the LX module port locations are given in the layout and elevation
drawings in Appendix B, Drawings B1 (EU, X, Z) and B2 (HI).
3.3.1. LX Piping Adapter Sealing Mechanism – EU, X, Z Modules (BSP Male)
The endblocks used in LX models EU, X and Z are made of thermoplastic elastomer,
(TPE) which is molded through (4) hard plastic fittings with Male BSP parallel threads.
The TPE covers the face of the threaded fittings, making a flat surface for sealing of the
external piping adapters. The end block threads are NOT TAPERED pipe threads and
the threads DO NOT CREATE the seal, they allow the sealing surfaces to move towards
each other and they hold the piping adapters in place. The seal comes from the TPE
through-port gasket that isolates the endplate and creates a sealing surface directly to
the internal LX spacer. See Figure 3-3, below.
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