ILEC™ membrane module

Modules should also be removed from pressure vessel in the same direction as the flow. Hence, the first module into the vessel, which is the last one in the series, is the first module out. Figures 6.10 a, b, and c show the removal sequence for a FilmTec iLEC membrane module (see Chapter 4.3.3). 

Figure 6.10 Sequence of module removal for Dow Water and Process Solutions-FilmTec iLEC membrane modules, a) module removal device, b) pulling module out of pressure vessel, c) disconnecting 2 modules. Courtesy of Nalco-Crossbow Water UC.

Figure4.20 shows the ATDs from a new FilmTec iLEC (Interlocking End Cap) membrane module (iLEC is a trademark of The Dow Chemical Company, Midland, MI). The iLEC modules join ATDs by twisting them together directly rather than relying on interconnector adaptors, the way standard modules are connected together. As shown in the figure, the ATD iLEC end cap has an integral O-ring that cannot be rolled or pinched during installation. Furthermore,...

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