Slip-type casing hangers provide a method to transfer the weight or tension load of a casing string to a casing head or casing spool. Slip-type hangers are available in automatic-sealing and nonautomatic-sealing varieties. Automatic hangers have seals that are energized by casing weight, while nonautomatic hangers have seals that require means other than casing weight to be energized. Nonautomatic hangers are typically used when insufficient casing load is available or when cementing back to the surface.
It Provides easy wraparound or split installation at any location on the casing string, Also provides suspension of the casing load from a casing head or spool, It gives the means to center the casing string in the head or spool.