10 Open endcap with bayonet mount SI-542 Separator DESCRIPTION The SI-xxxx Series separator canister is composed of an inner Teflon®- coated 200 mesh screen. The open endcap on the five inch canister has a locking bayonet mount with wavy spring. The blind end has a nozzle to fit a DOD coalescer o-ring endcap. These separators are qualified to Category M and M100 of the EI 1581 5th Edition Specification. APPLICATION The SI-xxxx Series separator canisters are made to fit over first stage coalescers in DOD military vessels such as those originally made to the MIL-F-27629, MIL-F- 27630, and MIL-PRF-52308 specifications. The inner Teflon coating repels water droplets as fuel exits the canisters, adding another layer of protection to the fueling system. The water droplets in the annular gap between the outside diameter of the coalescer and the inside diameter of the separator canister fall to the sump area at the bottom of the filter vessel, where they can then be drained. SPECIFICATIONS Model # NSN # OAL (in.) OD (in.) ID (in.) Micron Rating (μm) SI-422A* 4330-01-152-2376 21.56 4.46 4 140 SI-443* 4930-01-561-5968 43 4.6 4.5 140 SI-522 4330-01-511-8316 22.44 5.23 4 140 SI-522E 4330-00-112-0256 22.44 5.23 4 140 SI-542 4330-01-511-8274 42.5 5.23 4 140 *SI-422A and SI-443 have open endcap with no bayonet mount, and are not EI 1581 qualified. SI-443 is not qualified to any of the MIL specs listed above. Canister Separator SI Series Fully Qualified to EI 1581 5th Edition, Category M ®Teflon is a registered trademark of E.I. du Pont de Nemours & Co., Inc.
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