Set: cap nut with collar K1493 + Hygienic USIT^® seal and shim washer K1491.

Only the combination of a cap nut with collar and the Hygienic USIT^® seal and shim washer assures a cavity-free seal.

The cap nut with collar for Hygienic USIT^® seal and shim washers is ideal for fastening in sterile areas and also conform to EHEDG regulations, which is confirmed with the relevant certificate.

Cap nut: stainless steel 1.4404.

Washer: stainless steel 1.4404.

Seal ring:

75 EPDM 295 (black).

70 EPDM 253815 (white).

75 Fluoroprene^® XP 45 (blue).

The EHEDG certificate is only valid when a combination of cap nut with collar K1493 and specially matched Hygienic USIT^® seal and shim washer K1491 is used.

The function of the Hygienic USIT^® screw connection system has been tested in combination with stainless steel materials and standard cleaning materials. The user must check that it is suitable for the application in question.