It’s made of high quality alloy steel by forging, which features high strength, small volume, low weight, convenient disassembly and transportation. Its external surface has Nickel & Phosphor plating, which has good anti-corrosive property.
It can be divided into two types: type A is tapered rubber core annular preventer; type D is sphere rubber core annular preventer.
Annular BOP (Type A) Specification and Technical Parameters
Model |
Nominal Diameter, (mm) |
Working Pressure (MPa/psi) |
Closing Oil Volume (L) |
Opening Oil Volume (L) |
Dimension, (mm) |
Weight (Kg) |
|
A |
B |
||||||
FHZ18-70 |
179.4 |
70/10000 |
36 |
27 |
1200 |
1250 |
6293 |
FHZ28-70 |
279.4 |
70/10000 |
67 |
66 |
1465 |
1653 |
12290 |
FHZ35-70 |
346.1 |
70/10000 |
116 |
117 |
1554 |
1742 |
15190 |
FHZ43-35 |
425.4 |
35/5000 |
134 |
134 |
1680 |
1590 |
14100 |
FHZ54-14 |
539.7 |
14/2000 |
95.3 |
94.5 |
1380 |
1437 |
7660 |