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High-Performance Graphite Flat Seals

Application area Almost universally usable (depending on pressure and temperature); cover the... more

Application area

Almost universally usable (depending on pressure and temperature); cover the full range of classic flat seals

Not usable in ozone- and fluorine-containing media

Product specification

Graduated gasket material of expanded graphite (purity min. 98 %)

Acid-proof expanded metal inlay made of chrome-nickel steel

Adhesive-free

Binderless

Filler-free

Resistant to almost all organic and anorganic acids, alkalis, oils and solvents

Technical specification

Color: graphite gray

Binding material: no

Metal insert: chrome-nickel steel (material no. 1.4404)

Density: 1.40 g/cm3 (DIN 28090-2)

Tensile strength: 25 N/mm2 (MD); 10 N/mm2 (CD) (DIN 52910)

Pressure resistance: 45 N/mm2 (+175 °C); 43 N/mm2 (+300 °C) (DIN 52913)

Compressibility: 30 % (ASTM F 36 J)

Recovery: 20 % (ASTM F 36 J)

Cold compressibility KSW: 25 - 35 % (DIN 28090-2)

Cold recovery KRW: 3.5 - 5 % (DIN 28090-2)

Hot creep WSW/300: <5 % (DIN 28090-2)

Hot recovery WRW/300: >3 % (DIN 28090-2)

Recovery R: 0.065 mm (DIN 28090-2)

Leakage TA-Luft: (VDI 2200 draft)

Component testing: 30 Mpa, +300 °C, 1 bar helium 0.0001 mbar*l/m*s

Chlorine content: total: 300 ppm (Siemens AV 9-014), water-soluble: 50 ppm (Siemens AV 9-014)

Fluoride content: 300 ppm (Siemens AV 9-014)

Temperature range: -240 to +550 °C (depending on pressure)

Max. operating pressure: 200 bar (depending on temperature)

Regulations: German TA-Luft certification, Firesafe (API607 / BS6755), BAM (O2: +200 °C / 130 bar), DVGW

General Information Flat seals are usually stamped as rings. For more complicated geometries,... more

General Information

Flat seals are usually stamped as rings. For more complicated geometries, the rings are frequently cut by means of plotter or water jet. Rings are defined by the dimensions of the internal and external diameter as well as by the total thickness of the ring but often also by nominal diameter and pressure stage according to DIN 2690, 2691 (or 2692). For the purpose of harmonizing standards, these former flat seal standards are summarized in the EU standard DIN.

EN 1514-1. Still, the following sub-descriptions serve the purpose of illustrating the individual shapes: former DIN 2690: now EN 1514-1 Form IBC for smooth flanges; former DIN 2691: now EN 1514-1 Form TG for flanges with groove and tongue.

Advantages compared with other sealing elements:

symmetrical cross section, simple compact design, easy installation, wide selection of materials, grooving not required

Most common application: Flange sealing against liquid or gaseous media; static or quasistatic applications only.

Further applications: Housing and cover sealings.

Method of operation: The flat seal is axially pressed when mounting. The axial press force has to be greater than the sum of all radially acting forces to eliminate the risk of leakage. Cross-sectional leakage (the leakage diffused through the sealing material) is minimized by the selection of the right material. An optimal grouting of the flat seal prevents surface leakage, i.e. leakage occurring between flange and seal.

Materials for special requirements:

These flat seals are especially suited for use in processes that must comply with TA-Luft requirements.

Form IBC for smooth flanges: NW 10 to 200, PN 2.5 to 63

Form TG for flanges with groove and tongue: NW 10 to 200, PN 10 to 160

Manufacturing: according to the latest standards, with an optimal tool park, for quick and flexible handling, the traceability of materials is guaranteed, all parts go through a quality check before packaging.

Item Image Design1 Inside Ø
mm
Outside Ø
mm
Height
mm
NW
mm
PN
bar
Unit
piece
Price
Euro*
Buy
409424
IBC 18 39 2 10 6 10 96.00
409425
IBC 18 39 2 10 6 20 160.00
409426
IBC 18 46 2 10 40 10 96.00
409427
IBC 18 46 2 10 40 20 160.00
409428
IBC 18 56 2 10 63 10 96.00
409429
IBC 18 56 2 10 63 20 160.00
409430
IBC 22 44 2 15 6 10 103.00
409431
IBC 22 44 2 15 6 20 172.00
409432
IBC 22 51 2 15 40 10 103.00
409433
IBC 22 51 2 15 40 20 172.00
409434
IBC 21 61 2 15 63 10 103.00
409435
IBC 21 61 2 15 63 20 172.00
409436
IBC 27 54 2 20 6 10 124.00
409437
IBC 27 54 2 20 6 20 206.00
409438
IBC 27 61 2 20 40 10 124.00
409439
IBC 27 61 2 20 40 20 206.00
409440
IBC 25 72 2 20 63 10 124.00
409441
IBC 25 72 2 20 63 20 206.00
409442
IBC 34 64 2 25 6 5 91.00
409443
IBC 34 64 2 25 6 10 159.00
409444
IBC 34 71 2 25 40 5 91.00
409445
IBC 34 71 2 25 40 10 159.00
409446
IBC 30 82 2 25 63 5 91.00
409447
IBC 30 82 2 25 63 10 159.00
409448
IBC 43 76 2 32 6 5 110.00
409449
IBC 43 76 2 32 6 10 191.00
409450
IBC 43 82 2 32 40 5 110.00
409451
IBC 43 82 2 32 40 10 191.00
409452
IBC 41 88 2 32 63 5 110.00
409453
IBC 41 88 2 32 63 10 191.00
409454
IBC 49 86 2 40 6 5 127.00
409455
IBC 49 86 2 40 6 10 221.00
409456
IBC 49 92 2 40 40 5 127.00
409457
IBC 49 92 2 40 40 10 221.00
409458
IBC 47 103 2 40 63 5 127.00
409459
IBC 47 103 2 40 63 10 221.00
409460
IBC 61 96 2 50 6 5 159.00
409461
IBC 61 96 2 50 6 10 276.00
409462
IBC 61 107 2 50 40 5 159.00
409463
IBC 61 107 2 50 40 10 276.00
409464
IBC 59 113 2 50 63 5 159.00
409465
IBC 59 113 2 50 63 10 276.00
409466
IBC 77 116 2 65 6 5 206.00
409467
IBC 77 116 2 65 6 10 357.00
409468
IBC 77 127 2 65 40 5 206.00
409469
IBC 77 127 2 65 40 10 357.00
409470
IBC 73 138 2 65 63 5 206.00
409471
IBC 73 138 2 65 63 10 357.00
409472
IBC 89 132 2 80 6 5 230.00
409473
IBC 89 132 2 80 6 10 394.00
409474
IBC 89 142 2 80 40 5 230.00
409475
IBC 89 142 2 80 40 10 394.00
409476
IBC 86 148 2 80 63 5 230.00
409477
IBC 86 148 2 80 63 10 394.00
409478
IBC 115 152 2 100 6 5 263.00
409479
IBC 115 152 2 100 6 10 451.00
409480
IBC 115 162 2 100 16 5 263.00
409481
IBC 115 162 2 100 16 10 451.00
409482
IBC 115 168 2 100 40 5 261.00
409483
IBC 115 168 2 100 40 10 441.00
409484
IBC 110 174 2 100 63 5 261.00
409485
IBC 110 174 2 100 63 10 441.00
409486
IBC 141 182 2 125 6 5 324.00
409487
IBC 141 182 2 125 6 10 548.00
409488
IBC 141 192 2 125 16 5 324.00
409489
IBC 141 192 2 125 16 10 548.00
409490
IBC 141 194 2 125 40 5 324.00
409491
IBC 141 194 2 125 40 10 548.00
409492
IBC 135 210 2 125 63 5 324.00
409493
IBC 135 210 2 125 63 10 548.00
409494
IBC 169 207 2 150 6 5 368.00
409495
IBC 169 207 2 150 6 10 613.00
409496
IBC 169 218 2 150 16 5 368.00
409497
IBC 169 218 2 150 16 10 613.00
409498
IBC 169 224 2 150 40 5 388.00
409499
IBC 169 224 2 150 40 10 647.00
409500
IBC 163 247 2 150 63 5 388.00
409501
IBC 163 247 2 150 63 10 647.00
409502
IBC 220 262 2 200 6 5 498.00
409503
IBC 220 262 2 200 6 10 814.00
409504
IBC 220 273 2 200 16 5 498.00
409505
IBC 220 273 2 200 16 10 814.00
409506
IBC 220 284 2 200 25 5 541.00
409507
IBC 220 284 2 200 25 10 885.00
409508
IBC 220 290 2 200 40 5 564.00
409509
IBC 220 290 2 200 40 10 922.00
409510
IBC 210 309 2 200 63 5 564.00
409511
IBC 210 309 2 200 63 10 922.00
409512
TG 29 39 2 15 10 103.00
409513
TG 29 39 2 15 20 172.00
409514
TG 36 50 2 20 10 124.00
409515
TG 36 50 2 20 20 206.00
409516
TG 43 57 2 25 5 91.00
409517
TG 43 57 2 25 10 159.00
409518
TG 51 65 2 32 5 110.00
409519
TG 51 65 2 32 10 191.00
409520
TG 61 75 2 40 5 127.00
409521
TG 61 75 2 40 10 221.00
409522
TG 73 87 2 50 5 159.00
409523
TG 73 87 2 50 10 276.00
409524
TG 95 109 2 65 5 206.00
409525
TG 95 109 2 65 10 357.00
409526
TG 106 120 2 80 5 230.00
409527
TG 106 120 2 80 10 394.00
409528
TG 129 149 2 100 5 261.00
409529
TG 129 149 2 100 10 441.00
409530
TG 155 175 2 125 5 324.00
409531
TG 155 175 2 125 10 548.00
409532
TG 183 203 2 150 5 388.00
409533
TG 183 203 2 150 10 647.00
409534
TG 239 259 2 200 5 564.00
409535
TG 239 259 2 200 10 922.00
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