API 6A – Casing Hanger

C-21 Casing Hanger

Slips, slip bowl and a type H pack off seal ring are all combined in the C-21. The Type “H” pack off provides a positive annulus pack off after the casing has been suspended and cut off.

C-22 Casing Hanger

Combined in a single unit, the C-22 wrap around Casing Hanger incorporates pack off, slip bowl and slips. when the casing load is suspended, the pack off automatically seals the casing annulus below the slips. The C-22 Hanger’s controlled friction reduces casing deflection, can be easily installed and is economical

C-29 Casing Hanger

The C-29 Casing Hanger provides high hanging capacity with minimum casing deflection. When the upper slips move down and energize the pack off, the C-29’s non-tapered lower slips engage automatically and apply controlled compression. The lower slips do not move down the pipe, thus they do not create the high compressive forces, as do conventional tapered slips. The C-29 offers far less casing deflection and much greater hanging capacity than other conventional hangers

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