+65 6567 0972 sales@star21.com.sg

Proprietary Subsea Gaskets

Flexiteck UK

Style: 330

In subsea operations today for oil and gas wells, subsea completions at the sea floor are at increasing water depths with many completions between about four thousand (4,000) and eight thousand (8,000) feet of depth. Exploratory wells at water depths of ten thousand (10,000) feet or more are being considered. The hydrostatic pressure at such water depths is very high and along with containing internal system pressure the requirements on subsea gaskets are becoming ever more demanding

 

We are very aware of the critical nature and application of this commodity and our personnel have many years of experience supplying on a Global basis. The range of subsea gaskets is extensive and the application chart adjacent provides a basic overview only

 

All subsea gaskets are manufactured from fully traceable premium forged/rolled raw material only and machined precisely to extremely tight tolerances with particular care being taken over ovality, concentricity and flatness

 

To enhance installation, subsea gaskets may be supplied with either silver plating or xylan or molybdenum disulphide coating, which provide excellent dry film lubrication during preloading and pack out microscopic irregularities between the gasket and flange/gland

 

Resilient seals may be fitted should there be evidence of flange/gland damage

 

Part numbers are constructed as follows:

 

T    -    NB    -    RMT    -    PR    -    RS    -    PC

 

T = TYPE (V, A, C)

 

NB = NOMINAL BORE (02, 03, 13, 16, 18)

 

RMT = RAW MATERIAL (LCS, 316, 825)

 

PR = RATING (05, 10, 15)

 

RS = NUMBER OF RESILIENT SEALS (00, 01, 02)

 

PC = COATING (00 = NONE, ZN = ZINC, AG = SILVER, XY = XYLAN, MS = Mo S2)

 

 


 

 

Sub-Sea Gaskets - Application Chart

 

 

Nominal 

Material

Resilient

Maximum

Temp

Application

 

 

Size

 

Seals

Working

Range

 

 

Type

(inches)

 

 

Pressure

°C

 

 

 

 

 

 

(psi)

 

 

 

 

 

 

 

 

 

 

 

 

SUBX18V1

VX

18¾

LCS

-

15,000

-20

+121

Wellhead Connector

SUBX18V2

VX

18¾

LCS

2

15,000

-20

+121

L.M.R.P Connector

SUBX18V2-1

VX

18¾

LCS

1

15,000

-20

+121

Test Stump

SUBX18V3

VX

18¾

SS316L

-

15,000

-20

+121

 

SUBX18V3X

VX

18¾

SS316L*

-

15,000

-20

+121

 

SUBX18V4

VX

18¾

SS316L

2

15,000

-20

+121

 

SUBX18V4-1

VX

18¾

SS316L

1

15,000

-20

+121

 

SUBX18V5

VX

18¾

INCONEL

-

15,000

-29

+232

Wellhead Connector

SUBX18V6

VX

18¾

INCONEL

2

15,000

-29

+232

L.M.R.P. Conector

SUBX18V6-1

VX

18¾

INCONEL

1

15,000

-29

+232

HTHP Applications

SUBX16V1

VX

16¾

LCS

-

15,000

-20

+121

Wellhead Connector

SUBX16V2

VX

16¾

LCS

2

15,000

-20

+121

L.M.R.P. Connector

SUBX16V2-1

VX

16¾

LCS

1

15,000

-20

+121

Test Stump

SUBX16V3

VX

16¾

SS316L

-

15,000

-20

+121

 

SUBX16V4

VX

16¾

SS316L

2

15,000

-20

+121

 

SUBX16V4-1

VX

16¾

SS316L

1

15,000

-20

+121

 

SUBX16V5

VX

16¾

INCONEL

-

15,000

-29

+232

Wellhead Connector

SUBX16V6

VX

16¾

INCONEL

2

15,000

-29

+232

 L.M.R.P. Connector

SUBX16V6-1

VX

16¾

INCONEL

1

15,000

-29

+232

HTHP Applications

SUBX13V1

VX

13⅝

LCS

-

10,000

-20

+121

Wellhead Connector

SUBX13V2

VX

13⅝

LCS

2

10,000

-20

+121

L.M.R.P.Connector

SUBX13V2-1

VX

13⅝

LCS

1

10,000

-20

+121

Test Stump

SUBX13V3

VX

13⅝

SS316L

-

10,000

-20

+121

 

SUBX13V4

VX

13⅝

SS316L

2

10,000

-20

+121

 

SUBX13V4-1

VX

13⅝

SS316L

1

10,000

-20

+121

 

SUBX18A1

AX

18¾

LCS

-

15,000

-20

+121

 

SUBX18A2

AX

18¾

LCS

2

15,000

-20

+121

 

SUBX18A2-1

AX

18¾

LCS

1

15,000

-20

+121

 

SUBX18A3

AX

18¾

SS316L

-

15,000

-20

+121

 

SUBX18A3X

AX

18¾

SS316L*

-

15,000

-20

+121

 

SUBX18A4

AX

18¾

SS316L

2

15,000

-20

+121

 

SUBX18A4-1

AX

18¾

SS316L

1

15,000

-20

+121

 

SUBX18A5

AX

18¾

INCONEL

-

15,000

-29

+232

Wellhead Connector

SUBX18A6

AX

18¾

INCONEL

2

15,000

-29

+232

L.M.R.P.Connector

SUBX18A6-1

AX

18¾

INCONEL

1

15,000

-29

+232

HTHP Applications

SUBX16A1

AX

16¾

LCS

-

10,000

-20

+121

Wellhead connector

SUBX16A2

AX

16¾

LCS

2

10,000

-20

+121

L.M.R.P. Connector

SUBX16A2-1

AX

16¾

LCS

1

10,000

-20

+121

Test Stump

SUBX16A3

AX

16¾

SS316L

-

10,000

-20

+121

 

SUBX16A4

AX

16¾

SS316L

2

10,000

-20

+121

 

SUBX16A4-1

AX

16¾

SS316L

1

10,000

-20

+121

 

SUBX13A1

AX

13⅝

LCS

-

10,000

-20

+121

 

SUBX13A2

AX

13⅝

LCS

2

10,000

-20

+121

 

SUBX13A2-1

AX

13⅝

LCS

1

10,000

-20

+121

 

SUBX13A3

AX

13⅝

SS316L

-

10,000

-20

+121

 

SUBX13A4

AX

13⅝

SS316L

2

10,000

-20

+121

 

SUBX13A4-1

AX

13⅝

SS316L

1

10,000

-20

+121

 

SUBX13A1-5K

AX

13⅝

LCS

-

5000

-20

+121

 

SUBX13A3-5K

AX

13⅝

SS316L

-

5000

-20

+121

 

SUBX13A4-5K

AX

13⅝

SS316L

2

5000

-20

+121

 

SUBX3A1

AX

3⅛  3 1/16

LCS

-

15,000

-20

+121

Choke & Kill Connections

SUBX3A3

AX

3⅛  3 1/16

SS316L

-

15,000

-20

+121

Valves

SUBX3A4

AX

3⅛  3 1/16

SS316L

2

15,000

-20

+121

 

SUBX3A1-5K

AX

3⅛  3 1/16

LCS

-

5000

-20

+121

 

SUBX3A3-5K

AX

3⅛  3 1/16

SS316L

-

5000

-20

+121

 

SUBX2A1

AX

2 9/16

LCS

-

15,000

-20

+121

 

SUBX2A3

AX

2 9/16

SS316L

-

15,000

-20

+121

 

SUBX18C1

CX

18¾

LCS

-

15,000

-20

+121

B.O.P. Stack

SUBX18C3

CX

18¾

SS316L

-

15,000

-20

+121

 

SUBX18C4

CX

18¾

SS316L

2

15,000

-20

+121

 

SUBX18C5

CX

18¾

INCONEL

-

15,000

-29

+232

B.O.P. Stack / HTHP

SUBX18C7

CX

18¾

SS316L**

 

15,000

-20

+121

B.O.P.Stack

SUBX18C9

CX

18¾

SS316L***

 

15,000

-20

+121

 

 

 

 

 

 

 

 

 

 

*  Xylan Coated    ** 160-180BHN    *** 150-170BHN

 

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