Type 2800XS is the designation used for specially engineered seals designed for operation outside the normal parameters of Types 2800XA and 2800XP. The John Crane Type 2800XS is a non-contacting dual seal for non-turbo, large-bore rotating equipment applications, and complements the John Crane Type 2800E small-bore range. These seals feature new patented technology, which provides the basis for a series of enhanced end-user benefits.