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High Pressure Seal

, Type D

Customers may easily recognize our high pressure seal by the trapezoidal metal reinforcements placed on the inner ring of the seal. Those reinforcements allow our hydraulic sealto hold up well under high pressure.

Popular uses for this sealing device are in hydrostatic pressure testing of casing pipes, oil production tubing, natural gas pipeline, and other steel pipes, though it also can be used to seal high pressure valves, pipe joints, and welded pipe ends. When not in operation, the industrial seal may leave a small gap between mating surfaces. Once pressurized, the seal would automatically seal that gap for water-tight hydrostatic tests. We supply these PTFE high pressure seals in two types, broken down further into 70 models.

High Pressure Seal Assembly Diagram

Type II
No. Type Pipe size(inch) Groove dimensions Sealing element dimensions Order No.
D d H+0.2 Do do
1 D31.8-40 1 1/4" 132 35 40 134 38 D221
2 D60.3-40 2 3/8" 163 65 40 166 76 D222
3 D73-40 2 7/8" 183 80 40 188 91 D224
4 D88.9-40 3 1/2" 200 95 40 203 108 D228
5 D101.6-40 4" 218 108 40 224 128 D230
6 D114.3-35.5 4 1/2" 206 118 35.5 209 125 D201
7 D114.3-40 4 1/2" 240 121 40 245 141 D231
8 D127-40 5" 245 143 40 248 150 D202
9 D127-40 5" 254 134 40 259 156 D235(1)
10 D139.7-40 5 1/2" 257 156 40 260 165 D233
11 D139.7-40 5 1/2" 258 156 40 261 163 D203
12 D152.4-40 6" 280 170 40 283 179 D204
13 D153.7-40 6.05" 265 165 40 268 172 D238
14 D159-40 6 1/4" 280 177 40 283 185 D205
15 D168.3-40 6 5/8" 281 176 40 286 181 D241
16 D168.3-40 6 5/8" 289 187 40 292 194 D206
17 D177.8-40 7" 289 187 40 292 194 D207
18 D177.8-40 7" 301 185 40 306 202 D245
19 D193.7-40 7 5/8" 307 206 40 311 214 D208
20 D193.7-40 7 5/8" 309 202 40 314 210 D246
21 D203-40 8" 317 216 40 320 225 D209
22 D219.1-40 8 5/8" 328 226 40 331 233 D210
23 D219.1-40 8 5/8" 332 226 40 337 231 D249
24 D232-40 9 1/8" 337 240 40 340 248 D211
25 D244.5B-40 9 5/8" 352 253 40 355.5 259.5 D253
26 D244.5-40 9 5/8" 353 251 40 357 259.5 D212
27 D273.1-40 10 3/4" 385 278 40 388 285 D256
28 D273.1-40 10 3/4" 386 280 40 389 287 D213
29 D298.5-40 11 3/4" 406 307 40 409 313 D259
30 D323.9-40 12 3/4" 442 335 40 445.5 349.5 D260
31 D339.7-40 13 3/8" 448 351 40 450.5 360.5 D263
32 D355.6-40 14" 466 370 40 468 378 D266
33 D377-40 14.843" 498 395 40 500 410 D268
34 D406.4-45 16" 534 420 45 536 430 D269
35 D426-45 16.772" 562 440 45 564 450 D270
36 D457-45 18" 598 470 45 600 480 D271
37 D465-45 18.307" 618 485 45 620 496 D272
38 D480-45 18.898" 632 495 45 634 506 D273
39 D508-45 20" 668 525 45 670 534 D274
40 D530-45 20.866" 694 545 45 696 556 D275
41 D559-45 22" 728 570 45 730 584 D276
42 D609-45 23.976" 793 625 45 795 632 D277
43 D630-45 24.803" 828 650 45 830 662 D278
Type III
No.
Type

Pipe size(inch)
Groove dimension Sealing element dimensions Order No.
D d H+0.2 Do do
1 D31.8-33.5 1 1/4" 166.5 42 33.5 168 48 D301
2 D48.3-33.5 1.9" 166.5 58 33.5 169 64 D303
3 D60.3-33.5 2 3/8" 166.5 70 33.5 169 76 D304
4 D73-33.5 2 7/8" 175.5 83 33.5 178 89 D305
5 D88.9-33.5 3 1/2" 192.5 99 33.5 195 106 D306
6 D101.6-33.5 4" 205 112 33.5 208 120 D308
7 D114.3-33.5 4 1/2" 205.5 124 33.5 208 128 D309
8 D127-39.5 5" 235 137 39.5 238 145 D310
9 D139.7-33.5 5 1/2" 229 151 33.5 231.3 156.4 D311
10 D153.7-34.5 6.05" 244 164 34.5 247 169 D312
11 D158.8-36.5 6 1/4" 253.5 169 36 256 188 D313(1)
12 D168.3-36.5 6 5/8" 253.5 178 36 256 188 D313
13 D177.8-36.5 7" 253.5 184 36 256 188 D313(3)
14 D194.5-36.5 7.657" 264 200 36 266 203 D314
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