| Specification Parameter | Technology Grade | Structural Style | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pressure Grade(MPa) | Top Flange(in) | Surface Casing(in) | Oil-string Casing(in) | Temperature Grade | Material Grade | Specification Grade | PerformAnce Grade | Surface Casing Connection | Hang Mode | Primary Seal Mode | Subsidiary Seal Mode | Side Port Diameter | Flat Valve Quantity |
| 70 | 13 5/8〞 | 13 3/8〞 | 7〞 | V、U、T、S、P、N、L、K、 | AA、BB、CC、DD、EE、FF | PSL1、PSL2、PSL3 | PR1 | Down Cava Type or Screw Thread Type | Cava Type or Screw Thread Type | Rubber Seal / Soft Metallic Seal | BT Seal /Soft Metallic Seal | 2 1/16〞、2 9/16〞、3 1/16〞 | Single Valve/ Double Valve/ Four Valve |
| 70 | 13 5/8〞 | 13 3/8〞 | 5 1/2〞 | ||||||||||
| 70 | 13 5/8〞 | 9 5/8〞 | 7〞 | ||||||||||
| 70 | 13 5/8〞 | 9 5/8〞 | 5 1/2〞 | ||||||||||
| 35 | 13 5/8〞 | 13 3/8〞 | 7〞 | ||||||||||
| 35 | 13 5/8〞 | 13 3/8〞 | 5 1/2〞 | ||||||||||
| 21 | 13 5/8〞 | 9 5/8〞 | 7〞 | ||||||||||
| 21 | 13 5/8〞 | 9 5/8〞 | 5 1/2〞 | ||||||||||
