S seal for casing head and tubing hanger
S Seal is a technologically advanced replacement for traditional three-piece T-Seals or O-Rings with back-ups.
The one-piece S seal eliminates installation problems that can occur when using multiple component seals. It can be stretched into place without splitting or compromising the non-extrusion elements of the seal.
S seal saling materials need to withstand pressures as high as 15 000 psi and temperatures of 149º C (300º F).
JST S seal is made to perform in toughest situations, delivering reliable high-pressure static sealing.
JST S seal is available in material NBR, HNBR, FKM with 2 integral anti-extrusion springs.
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Advantages:
1. Improve equipment reliability
2. Extend seal and equipment service life
3. Reduce installation time, delay and damage
4. Protect system from loose materials
5. Material is certified with Norsok M710 H2S immertion test.
6. Rapid gas decompression resistance
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Working Conditions
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Temperature range
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Pressure
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Medium
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LU, PU, SX
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≤20000 PSI
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Oil, water, Gas, H2S, CO2 etc
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HOUSING GROOVE DESIGN DIMENSIONS
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SEAL
NOMINAL
SECTION
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GROOVE
AXIAL DEPTH: E
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GROOVE
RADIAL
WIDTH: F
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TOTAL DIAMETRAL EXTRUSION
CLEARANCE: G
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CORNER RADII
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BASE: H max.
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OUTER: J
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inch
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mm
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inch
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mm
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inch
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mm
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inch
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mm
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inch
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mm
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inch
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mm
|
|
0.103
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2.62
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LONG
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0.260
|
6.60
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0.094 0.091
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2.39 2.31
|
0.010
|
0.25
|
0.031
|
0.80
|
0.010 0.005
|
0.25
0.13
|
|
0.256
|
6.50
|
|
INTER
|
0.201
|
5.10
|
-
|
|
0.197
|
5.00
|
|
SHORT
|
0.146
|
3.70
|
-
|
|
0.138
|
3.50
|
|
0.13
|
3.53
|
LONG
|
0.311
|
7.90
|
0.125 0.122
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3.18 3.10
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0.012
|
0.30
|
|
0.303
|
7.70
|
|
INTER
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0.252
|
6.40
|
|
0.244
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6.20
|
|
SHORT
|
0.193
|
4.90
|
-
|
|
0.185
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4.70
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|
0.210
|
5.33
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LONG
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0.425
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10.80
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0.188 0.184
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4.78 4.67
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0.014
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0.3
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|
0.417
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10.60
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INTER
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0.354
|
9.00
|
|
0.346
|
8.80
|
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SHORT
|
0.283
|
7.20
|
|
0.276
|
7.00
|
|
0.275
|
6.99
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LONG
|
0.583
|
14.80
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0.250 0.245
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6.35 6.22
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0.016
|
0.40
|
|
0.575
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14.60
|
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INTER
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0.480
|
12.20
|
|
0.472
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12.00
|
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SHORT
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0.378
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9.60
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0.370
|
9.40
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