Annular BOP
Our annular BOPs are designed and manufactured to API Spec 16A standard. Featuring a spherical or tapered packing element our they have a substantial significant volume, low operating pressures and excellent sealing.
- Spherical or tapered packing element offers significant storage volume, low operating pressure and excellent sealing.
- Bonnet is hemispherical-shaped so there is no stress concentration whenever bearing pressure. Pressure is evenly distributed; convenient for disassembly and assembly (except FHZ5414).
- Low position of piston gives a shorter moving distance and less ring wear.
- Lip type seal rings means longer service life.
Annular BOP Classification
| Operating pressure (psi) | Drift diameter (in) | ||||
|---|---|---|---|---|---|
| 7 1/16 | 11 | 13 5/8 | 20 3/4 | 21 1/4 | |
| 2000 | Flange connection (bolted) | Flange connection (bolted) | Flange connection (bolted) | – | Conical |
| 3000 | Flange connection (bolted) | Flange connection (bolted) | Flange connection (bolted) | Conical | – |
| 5000 | Flange connection (bolted) | Flange connection (bolted) | Flange connection (bolted) | – | – |
| 10000 | Flange connection (bolted) | Wedge block connection | Wedge block connection | – | – |
Comparison of Name and Code No. of Parts for Annular BOPs
(Spherical Rubber Core)
| No. | Name | Qty. | Product model | ||||||
|---|---|---|---|---|---|---|---|---|---|
| FH18-35/70 | FH28-35 | FH28-35/70 | FH35-35 | FH35-35/70 | FH1870/ 105 | ||||
| 1 | Shell | 1 | FH1835-03 | FH2835-05 | FH3535-03A | FW1305-05A | H09.04.00 | ||
| 2 | Sealing elements | 1 | FH1835-06-00 | FH2835-11 | FH2835.09-00 | FW1305.06-00A | H09.07.00 | ||
| 3 | Inner seal ring of adapter ring | 2 | FH1835-12 FH1835-13 | FH2835-15 FH2835-16 | FW1305.11-00 | H09.11.00 | |||
| 4 | Adapter ring | 1 | FH1835-10 | FH2835-14 | FH2835-11 | FW1305-10A | H09.03 | ||
| 5 | Outer seal ring of piston | 2 | FH1835-19 FH1835-2 | FH2835-20 FH2835-21 | FW1305.16-00 | H09.15.00 | |||
| 6 | Inner seal ring of piston | 2 | FH1835-14 FH1835-15 | FH2835-18 FH2835-19 | FW1305.13-00 | H09.12.00 | |||
| 7 | Body | 1 | FH1835-02 | FH1835/70-01 | FH2835.03-00 | FH2835/70.01－00 | FH3535.04-00 | FW1305-17 | H09.01 |
| 8 | Cap nut | 24 | FH1835-07 | FH2835-04 | FH2835-07 | FW1305-03 | H09.05 | ||
| 9 | O-seal ring （cap nut） | 24 | – | 85×5.7 | 80×3.55 | ||||
| 10 | Bolt | 24 | FH1835-08 | FH2835.09-00 | FH2835-04 | FW1305-04 | H09.66 | ||
| 11 | Screw off | 4 | – | Screw off 6.8t | Screw off 9t | Screw off 7t | |||
| 12 | O-seal ring （mud ring） | 1 | FH1835-09 | FH2835-10 | FW1305-07 | H09.08.00 | |||
| 13 | O-seal ring （external mud ring） | 1 | FH1835-11 | FH2835-12 | FW1305-09 | H09.09 | |||
| 14 | Wearing ring （outside piston） | 2 | FH1835-17 | FH2835-17 | FW1305-15 | H09.14 | |||
| 15 | Piston | 1 | FH1835-18 | FH2835-14 | FW1305-12A | H09.02 | |||
| 16 | Wearing ring（shell） | 1 | FH1835-16 | FH2835-23 | FW1305-14 | H09.13 | |||
| 17 | O-seal ring （outside shell） | 1 | – | FW1305-08 | FH2835-13 | ||||
| 18 | Joint | 2 | – | FH2835-13 | – | FH2835-22 | |||
| 19 | Z1” pipe plug | 2 | FH2835-22 | ||||||
Comparison of Name and Code No. of Parts for Annular BOPs (spherical Rubber Core)
Comparison of Name and Code No. of Parts for FH35-70/105 and FH28-70/105 Annular BOPs
Figure 11 Parts Drawing of FH35-70/105 Annular BOP
Table 3 Name and Code No. of Parts for FH35-70/105 and FH28-70/105 Annular BOPs
| No. | Part name | Qty. | Part Code No. | |
|---|---|---|---|---|
| FH35-70/105 | FH28-70/105 | |||
| 1 | Lifting screw | 12 | FH3570-19 | |
| 2 | Pressure ring | 1 | FH3570-01 | FH2870-01 |
| 3 | Shell | 1 | FH3570-06 | FH2870-04 |
| 4 | Sealing elements | 1 | FH3570-07 | FH2870-05 |
| 5 | Composite seal ring （mud ring | 1 | FH3570-09 | FH2870-07 |
| 6 | Adapter ring | 1 | FH3570-10 | FH2870-08 |
| 7 | Composite seal ring（outside piston） | 2 | FH3570-14-0 | FH2870-11-0 |
| 8 | Piston | 1 | FH3570-17 | FH2870-14 |
| 9 | Composite seal ring（outside shell） | 2 | FH3570-12-0 | FH2870-10-0 |
| 10 | Antifriction ring （outside shell） | 1 | FH3570-16 | FH2870-13 |
| 11 | Body | 1 | FH3570-18 | FH2870-15 |
| 12 | Nut/screw | 12 | FH3570-03 | GB30-76 |
| 13 | Double end bolt/screw | 12 | FH3570-02 | |
| 14 | Wedge block | 12 | FH3570-05 | FH2870-03 |
| 15 | Screw M12×30 | 12 | GB70-76 | |
| 16 | O-seal ring（outside mud ring） | 1 | FH3570-08 | FH2870-06 |
| 17 | Composite seal ring（inside mud ring） | 2 | FH3570-11-0 | FH2870-09-0 |
| 18 | Antifriction ring （outside piston） | 2 | FH3570-15 | FH2870-12 |
| 19 | Lifting lug | 4 | FH3570-04 | |
| 20 | Screw M36×80 | 8 | (grade 12.9) | |
| 21 | Screw off | 4 | JB8112-1999 | |
| 22 | Joint | 4 | FH3570-13 | |
| 23 | Oil plug | 4 | F02-15 | |
Comparison of Name and Code No. of Parts for FHZ54—14 Annular BOPs
Figure 12 Parts Drawing of FHZ54-14 Annular BOP
Table 4 Name and Code No. of Parts for FHZ54—14 Annular BOP
| No. | Part name | Qty. | Part Code No. |
|---|---|---|---|
| 1 | Shell | 1 | FHZ5414-03 |
| 2 | O-seal ring（top cover） | 2 | FHZ5414-09 |
| 3 | Sealing elements | 1 | FHZ5414.02-00 |
| 4 | Piston | 1 | FHZ5414-13 |
| 5 | Bolt M20×80 | 16 | GB70-85 |
| 6 | External body sleeve | 1 | FHZ5414-14 |
| 7 | Internal body sleeve | 1 | FHZ5414-16 |
| 8 | Claw plate | 20 | FHZ5414-05 |
| 9 | Claw plate screw | 20 | FHZ5414-06 |
| 10 | Screw M12×70 | 4 | GB70-85 |
| 11 | Body | 1 | FHZ5414.11-0 |
| 12 | Seal ring （internal seal ring of top cover） | 2 | FHZ5414-08 |
| 13 | Wear plate | 1 | FHZ5414-01 |
| 14 | Bolt M12×35 | 6 | GB5783-86 |
| 15 | Seal ring （seal ring of piston） | 2 | FHZ5414-15 |
| 16 | Seal ring （external body sleeve） | 2 | FHZ5414-12 |
| 17 | O-seal ring （external body sleeve, lower part） | 1 | FHZ5414-17 |
| 18 | Bolt M12×45 | 16 | GB70-85 |
| 19 | O-ring 25×2.65 | 20 | GB/T 3452.1 |
| 20 | Supporting screw | 20 | FHZ5414-07 |
| 21 | O-ring 53×5.3 | 20 | GB/T 3452.1 |
| 22 | Shell chuck | 4 | FHZ5414-04 |
| 23 | Oil plug | 2 | F02-15 |
| 24 | Cross-over sub | 2 | FHZ5414-10 |
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