Applicable for hanging the casing string, sealing the annular space between the casing. Structure: integral or multi layers.
1. Both top and bottom connections are API6A flange, and the flanges are provided with locking bolts;
2. Casing hangers has straight type seat bore and 45° cone of hanging shoulder, with strong loading ability;
3. Structure type of the matched casing hanger; slip or mandrel(thread);
4. Outlet connection can be thread, bolted flange;
5. Secondary seal mechanism(“O”seal, BT seal or metal-metal seal)are set at the bottom of casing head and casing spool;
6. Lubricator, test port;
7. Bottom connection can be threaded, welding or slip.
