Description
The Annular blowout preventer consists of a body, upper housing, sealing element, dust-proof ring, and piston. It provides a rugged, reliable preventer and ease of service and is widely used Offshore (subsea and surface) and onshore.
The annular blowout preventer is compact, seal any size Kellys, drill pipe, tool joints, drill collars, casing, or wireline. Sphericals also provide positive pressure control for stripping drill pipes into and out of the hole.
The annular blowout preventer is Manufactured in accordance with API Specification 16A, and NACE MR0175 per API Specification 16A, Temperature T20, and Standard nitrile packing element: 40°F to 170°F.
Specifications:
| Model | Main bore mm(in) | Working pressure MPa (psi) | Operating Pressure MPa | Connection type | Dimension mm | weight kg | ||
|---|---|---|---|---|---|---|---|---|
| Top | Bottom | OD | Height | |||||
| FH18-21 | 179 (7-1/16) | 21(3000) | 8.4～10.5 | studded | fanged | 737 | 743 | 1350 |
| FH18-35 | 35(5000) | 737 | 790 | 1572 | ||||
| FH18-70/105 | 70(10000) | 1092 | 1136 | 5070 | ||||
| FH23-21 | 228 (9) | 21(3000) | 900 | 830 | 2104 | |||
| FH23-35 | 35(5000) | 998 | 1200 | 3540 | ||||
| FH28-21 | 279 (11) | 21(3000) | 1013 | 838 | 2574 | |||
| FH28-35 | 35(5000) | 1138 | 1081 | 4410 | ||||
| FH28-35/70 | 35(5000) | 1138 | 1096 | 4451 | ||||
| FH28-70/105 | 70(10000) | 1448 | 1420 | 10800 | ||||
| FH35-35 | 346 (13-5/8) | 35(5000) | 1270 | 1160 | 6400 | |||
| FH35-35/70 | 35(5000) | 1270 | 1227 | 6843 | ||||
| FH35-70/105 | 70(10000) | 1640 | 1664 | 15110 | ||||
| FH43-35 | 425 (16-3/4) | 35(5000) | 1524 | 1320 | 10834 | |||
| FH48-70 | 476 (18-3/4) | 70(10000) | 1937 | 1882 | 27161 | |||
Drawing:
