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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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