All API 6A 20th Edition, Monogrammed
Standard Product: AA-EE, L-U, PSL 2&3, PR2
Top Connections:
All C-22 and C-29 Heads have standard API Flanges. Optional Lockdown screws (two) for bowl protectors or (multiple) for annular seal compression can be provided on request.
Bottom Connections:
The standard bottom preparation is the most commonly used Slip On Weld (SOW). API Female, BTC and proprietary casing threads can be provided on request.
C-22 Casing Heads
| Top Flange | Top Flange | Bottom Casing | Outlets |
| Inches | Rating PSI | Inches | |
| 11 | 2000 | 8-5/8, 9-5/8, 10-3/4 | 2†LP |
| 11 | 3000 | 8-5/8, 9-5/8, 10-3/4 | 2†LP |
| 11 | 5000 | 8-5/8, 9-5/8, 10-3/4 | 2†LP |
| 13-5/8 | 2000 | 11-3/4, 13-3/8, 13-5/8 | 2†LP |
| 13-5/8 | 3000 | 11-3/4, 13-3/8, 13-5/8 | 2†LP |
| 13-5/8 | 5000 | 11-3/4, 13-3/8, 13-5/8 | 2†LP |
Other sizes available on request
C-29 Casing Heads
| Top Flange | Top Flange | Bottom Casing | Outlets |
| Inches | Rating PSI | Inches | |
| 9 | 2000 | 7-5/8, 8-5/8 | 2†LP |
| 9 | 3000 | 7-5/8, 8-5/8 | 2†LP |
| 9 | 5000 | 7-5/8, 8-5/8 | 2†LP |
| 11 | 3000 | 8-5/8, 10-3/4 | 2†LP |
| 11 | 5000 | 8-5/8, 10-3/4 | 2†LP |
| 13-5/8 | 3000 | 13-3/8 | 2†LP |
| 13-5/8 | 5000 | 13-3/8 | 2†LP |
Other sizes available on request
Studded outlets available on request.