EN 
- Technical Features
- Technical Parameters
Main Technical Features
● Rubber core store glue big quantity , small friction resistance, when switch pressure sealing
ability.
● Using hemispherical head, no stress concentration phenomenon when under pressure, casing
stress evenly, easy to tear open outfit.
● Piston stroke is short, low height, and set the wear ring.
● The lip seal, long service life.
● Low temperature processing annular blowout preventer shell diameter has a trough steam
pipe, pipe ventilation with saturated vapor, round shell for heating.( For the customer to choose
).
● High sulfate-resistant blowout preventer internal all parts contact well liquid surfacing high
nickel base alloy, can achieve the highest levels of resistance to effect such as H2S and CO2. For
the customer to choose.
● Manufactured in accordance with API Specification 16A, and NACE MR0175, Temperature T20,
Standard nitrile packing element: 40°F to 170°F.
| Model | Main bore | Working pressure | Operating Pressure MPa | Connection type | Dimension | Weight kg | ||
|---|---|---|---|---|---|---|---|---|
| mm(in) | MPa (psi） | mm | ||||||
| FH18-21 | 179(7 1/16) | 21（3000） | 8.4～10.5 | studded | flanged | 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 | |||