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A picture of an expand joint , also known as a bellow. THis one is a double bellow.

Exhaust Bellows VTAD

Exhaust bellows are designed and used to absorb vibration and the thermal expansion of the engine. The bellows, the flexible part of the expansion joint, is a multi-layer construction with thin layers of heat resistant stainless steel. This is a double bellow, therefore longer than a singel bellow.

Product Characteristics

Bellow

AISI 321 (1.4541) steel (2 layer).

Flanges

RSt.37.2. DN40 – DN175: acc. to DIN 2573 (PN6)
DN200 – DN1200: acc. to DIN 86044
Other standards or material at request.

Characteristics

  • Temperature > 600ºC
  • Design pressure > 1,0 BarG
  • Produced acc. to EJMA-standard
  • Turnable flanges or stub ends

Other specifications needed, contact us at Vibratec.

Technical Specifications

exhaust-bellow-vtad-technical-specifications.xlsx

Dimensions and weight

Type Ln Flanges acc to DIN 2573 (PN6)
D b k N d2 Do Weight
 (mm)  (mm)  (mm)  (mm)  (ant.)  (mm)  (mm)  (kg)
VTAD-0040 275 130 16 100 4 14 60 3.5
VTAD-0050 275 140 16 110 4 14 70 4
VTAD-0065 275 160 16 130 4 14 88 4.5
VTAD-0080 340 190 18 150 4 18 101 7
VTAD-0100 280 210 18 170 4 18 128 8
VTAD-0125 300 240 20 200 8 18 156 11
VTAD-0150 300 265 20 225 8 18 187 12.5
VTAD-0175 300 295 20 255 8 18 212 13.5
Flanges acc to DIN 86044
VTAD-0200 300 320 16 280 8 18 240 13
VTAD-0250 300 375 16 335 12 18 296 17.5
VTAD-0300 300 440 16 395 12 22 347 21
VTAD-0350 400 490 16 445 12 22 379 28
VTAD-0400 400 540 16 495 16 22 432 31
VTAD-0450 400 595 16 550 16 22 483 36
VTAD-0500 400 645 16 600 20 22 534 39
VTAD-0550 400 703 20 650 20 22 585 53
VTAD-0600 500 754 20 700 20 22 640 61
VTAD-0700 500 858 20 800 24 22 742 70.5
VTAD-0800 500 958 20 900 24 22 843 80
VTAD-0900 500 1060 20 1010 28 22 949 90
VTAD-1000 500 1162 20 1110 32 22 1051 99.5
VTAD-1100 500 1266 20 1210 32 22 1155 113
VTAD-1200 500 1366 20 1310 36 22 1255 122

Specifications at 350°C

Max. movement (±) Max. reaction force Spring rate
Type Axial (mm) Lateral (mm) Axial (daN) Lateral (daN) Axial (N/mm) Lateral (N/mm)
VTAD-0040 30 50 171 20 57 4
VTAD-0050 32 50 195 30 61 6
VTAD-0065 50 50 250 40 50 8
VTAD-0080 38 50 205 30 54 6
VTAD-0100 32 41 211 70 66 17
VTAD-0125 34 39 201 74 59 19
VTAD-0150 39 36 207 90 53 25
VTAD-0175 43 34 249 136 58 40
VTAD-0200 43 31 482 257 112 83
VTAD-0250 58 26 534 330 92 127
VTAD-0300 58 30 522 603 90 201
VTAD-0350 47 36 555 400 118 111
VTAD-0400 45 32 630 528 140 165
VTAD-0450 60 36 702 727 117 202
VTAD-0500 64 34 768 830 120 244
VTAD-0550 64 30 819 1005 128 335
VTAD-0600 82 43 1287 1264 157 294
VTAD-0700 81 36 1409 1598 174 444
VTAD-0800 79 31 1525 1975 193 637
VTAD-0900 79 29 1414 2163 179 746
VTAD-1000 79 26 1541 2623 195 1009
VTAD-1100 106 28 1696 3466 160 1238
VTAD-1200 106 26 1823 4116 172 1583