Tubing head and tubing spool are used for hanging tubing and sealing the annular space between casing and tubing, feature with the following:

1. Secondary seal between tubing hanger and adapter hanger can be "O" ring, BT seal or metal-metal seal;
2. Metal-metal seals, special elastomer seals, or metal+special seals are set between tubing hanger and tubing head;
3. Tubing hanger for tubing head has straight type seat bore and 45°cone of hanging shoulder, wth strong loading ability;
4. Complete with lubricator and sealing test port;
5. Secondary seal mechanism is set at the bottom flange, which can be "O"seal,BT seal or metal seal;
6. Tubing hanger and tubing head adapter flange can be penetrated through cable or cable penetrator and be provided with control pipeline interface;
7. Tubing hanger can be set with BPV thread as required;
8. The flanges are provided with locking screw;
9. The connection type of side outlet is bolted with VR thread for valve-replacement operation.