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    Products

    Sphere Rubber Core Annular BOP (Type D)

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    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.
    There are two connection methods between roof cover and body of annular preventer, bolt joint and block connection. Round annular preventer consists of five main parts: roof cover, body, piston, ball core and dustproof ring. Taper annular preventer consists of seen main parts: roof cover, anti-wear plate, body, piston, taper core, dustproof ring and supporting column. The sealing of round annular preventer adopts lip-shape sealing ring, it can reduce the abrasion of sealing farthest. The sealing is reliable and the glue core is not easy to turn over. It also has filler effect. The well pressure is helpful to sealing.

    Technical Parameters of Sphere Rubber Core Annular BOP (Type D) :

    Model

    Nominal diameter

    (mm)

    Working Pressure (MPa/psi)

    Closing Oil Volume (L)

    Opening Oil Volume (L)

    Dimension mm

    The Whole Unit Weight (Kg)

    A

    B

    C

    D

    E

    F

    FH18-21

    179.4

    21/3000

    21

    15

    745

    769

    141

    309

    37

    225

    1433

    FH18-35

    35/5000

    21

    15

    745

    797

    169

    309

    31

    231

    1520

    FH23-21

    228.6

    21/3000

    34

    22.8

    902

    838

    128

    494

    48

    260

    2398

    FH23-35

    35/5000

    42

    33

    1016

    860

    110

    500

    72

    262

    2986

    FH28-21

    279.4

    21/3000

    50

    39

    1014

    870

    152

    529

    52

    290

    2950

    FH28-35

    35/5000

    6

    72

    1146

    1110

    242

    676

    74

    313

    4675

    FH35-21

    346.1

    21/3000

    94

    69

    1271

    1105

    170

    470

    80

    345

    5738

    FH35-35

    35/5000

    94

    69

    1271

    1150

    200

    670

    85

    340

    6415

    FH35-35

    425.3

    35/5000

    220

    171

    1683

    1558

    296

    1410

    428

    534

    16000

    FH35-21

    527.0

    21/3000

    173

    110

    1375

    1293

    260

    569

    74

    414

    6994

    FH35-35

    539.7

    35/5000

    241

    181

    2240

    1718

    315

    1201

    140

    564

    20230


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