The Cedervall aft stern-tube seals are available in two main versions, the new
“SeaQual” type and the “K” type. SeaQual is available in a standard version, with
essential parts made split and a retrofit version, with all parts made split. The K
type is available in a split version, type KR, and a non-split version, type KLR.
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SeaQual - aft oil lubricated split stern tube seal. With built in preasure equalizer and “free-floating” alignment ring. Available for shaft diameters 205-1200 mm.

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KR - aft oil lubricated split stern tube seal. With "free-floating" alignment ring. Available for shaft diameters 98-1064 mm.

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KLR - aft oil lubricated non-split stern tube seal. With "free-floating" alignment ring. Available for shaft diameters 98-1064 mm.