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Products & Services » Offshore » Floating Production Systems » Drilling Risers » Subsea Configurations
Subsea Configurations

Subsea FlexJoint® are available in a variety of configurations to meet specific application requirements.

Nominal Rating (ksi)

0.6

2.0

2.5

3.0

3.5

4.0

5.0

6.0

Base Configuration

*S.E. (1)

*S.E.  (1)

*S.E.(1)

*S.E.(1)

*S.E.(1)

*S.E.(1)

*S.E.(1)

*S.E.(1)

Working Depth w/18ppg mud(ft.)

1,200

4,000

5,000

6,000

7,000

8,000

10,000

12,000

Key Features

Max. Working Tension (kips)**

500

1,000

1,000

1,000

2,000

2,000

2,000

3,000

Max. Tension (kips)
w/flooded riser***

1,000

2,000

2,000

2,000

2,500

2,500

2,500

3,500

Max. Working Pressure (psi)**

600

2,000

2,500

3,000

3,500

4,000

5,000

6,000

Max. Angular Rotation (deg)**

±10

±10

±10

±10

±10

±10

±10

±10

Rotational Stiffness (ft-kips/deg)

19.00

34.21

34.21

34.21 

41.64 

41.64 

68.73 

94.08

Body O.D. (inches)

42.63

47.00

47.00

48.50

56.00

56.00

58.00

62.00

Weld Prep Interface

Inside Diameter (inches)

20.50

20.50***

20.50

20.50

19.75

19.75

19.75

19.75

Outside Diameter (inches)

23.50

23.50***

23.50

23.50

23.50

23.50

23.50

23.50

Min. Mat'l Yield Strength (ksi)

60.00

60.00***

60.00

60.00

60.00

60.00

80.00

80.00

Lower Flange Configuration

13-5/8" 5,000 psi

X

X

X

X

13 5/8" 10,000 psi

X

X

X

X

13-5/8" 15,000 psi

X

X

X

X

16 3/4" 5,000 psi

X

X

X

X

18 3/4" 5,000 psi

X

X

X

X

18 3/4" 10,000 psi

X

X

X

X

X

X

X

X

18 3/4" 15,000 psi

X

X

X

X

X

X

X

X

21 1/4" 5,000 psi

X***

X***

X***

X***

Upper Flange Configuration

13-5/8" 5,000 psi

X

X

X

X

       
13-5/8" 5,000 psi

X

X

X

X

       
13-5/8" 15,000 psi

X

X

X

X

       
16 3/4" 5,000 psi

X

X

X

X

       
16 3/4" 10,000 psi

X

X

           
18 3/4" 5,000 psi

X

X

X

X

X

X

X

X

18 3/4" 10,000 psi

X

X

X

X

X

X

X

X

18 3/4" 15,000 psi

X

X

X

X

X

X

X

X

18 3/4" 2,000 psi

X

X

X

X

     
18 3/4" 5,000 psi

X***

X***

X***

X***

X***

     

Load Case 1

Internal Pressure (psi) 600 2,000 2,500 3,000 3,500 4,000 5,000 6,000
Axial Tension (kips) 500 1,000 1,000 1,000 2,000 2,000 2,000 3,000
Angular Rotation (deg) ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10

Load Case 2

Internal Pressure (psi) 0 0 0 0

0

0

0

0

Axial Tension (kips) 1,000 2,000 2,000 2,000

2,500

2,500

2,500

3,500

Angular Rotation (deg) ±10 ±10 ±10 ±10 ±10 ±10 ±10 ±10

Load Case 3

Hydrotest Pressure (psi) 900 3,000 3,750 4,500 5,250 6,000 7,500 9,000
Axial Tension (kips) 0 0 0 0 0 0 0 0
Angular Rotation (deg) 0 0 0 0 0 0 0 0
Notes: * S.E.(1) signifies a single-ended unit with only one (1) elastomeric element.
** Axial tension, internal pressure and angular rotation are interactive functions and the ability to achieve the maximum stated condition for one function is based on the magnitude of the other two. Refer to the load cases for details.
*** Weld Prep Interface for a 21 1/4" 5M flange is I.D.=22.00", O.D. = 24.10" and Minimum Material Yield Strength = 60.00 ksi.
 


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