Lateral Expansion Joints - Technical Data - BOA Group

IWK Lateral
Expansion Joints
Bl
Type 7820
previous: 307/281–83
Ø Da
2Δ lat.
A
Ordering text:
7820 – DN … / PN … / ± Δ lat … / Bl. …
L1
B
Expansion joint
DN
PN
Nominal lateral
movement
capacity
Bellows middle
distance
Overall length
Large flange axis
Small flange axis
Weight
Connection
dimensions
(flange)
Outer
diameter
Lateral spring
rate 1)
Hinge friction 1)
± Δ lat L 1 Bl. A B Ø Da C lat C r
[mm] [mm] [mm] [mm] [mm] [kg] [mm] [N/mm] [N/bar]
6 28 99.0 185 240 130 4.0 57.5 8.1 4.5
6 50 179.5 255 240 130 4.2 57.5 3.1 3.3
6 100 440.9 505 240 130 5.6 57.5 0.6 1.7
6 125 415.0 498 241 130 5.5 68.0 0.4 2.5
16 30 160.5 225 260 150 5.6 57.5 6.3 3.8
16 50 294.6 360 260 150 7.3 57.5 1.9 2.4
16 100 557.5 625 260 150 7.8 57.5 0.5 1.4
40 16 110 492.0 576 252 150 7.5 69.0 0.9 2.3
25 25 137.4 207 260 150 6.6 57.0 13.3 3.9
25 55 247.4 316 260 150 7.2 57.0 4.2 2.6
25 85 407.4 480 260 150 8.0 57.0 1.5 1.7
25 90 483.0 562 252 150 8.0 69.0 2.0 2.2
40 25 216.8 275 260 150 7.0 57.0 8.1 2.9
40 50 351.8 410 260 150 7.6 57.0 3.1 2.0
40 75 516.8 575 260 150 8.4 57.0 1.4 1.4
Reduction factor 2) for
pressure [K p] and
movement capacity [K Δ]
Temperature K p K Δ
°C – –
–10 … 20 1.00 1.00
50 0.92 0.97
100 0.87 0.94
150 0.83 0.92
200 0.79 0.90
250 0.74 0.88
300 0.67 0.86
6 32 114.5 195 250 140 4.5 73.8 13.2 7.1
6 55 184.5 265 250 140 4.7 73.8 5.3 5.3
6 123 446.5 528 250 140 6.7 73.8 0.9 2.7
6 120 441.0 520 251 140 6.5 80.0 0.5 3.5
16 23 107.5 190 275 165 7.3 73.7 28.5 7.3
16 40 177.5 260 275 165 7.5 73.7 10.9 5.4
16 75 429.0 500 275 165 9.3 73.8 1.6 2.8
50 16 100 506.0 590 267 165 9.1 82.0 1.2 3.1
25 24 105.0 190 275 165 8.4 73.2 35.6 7.1
25 45 175.0 260 275 165 8.7 73.2 14.4 5.2
25 90 589.0 665 275 165 11.2 73.7 1.4 2.1
25 90 458.0 548 261 165 10.0 82.5 2.0 3.4
40 28 221.7 290 275 165 9.0 73.2 15.8 4.7
40 50 371.7 440 275 165 10.0 73.2 5.7 3.1
40 75 541.7 610 275 165 11.0 73.2 2.7 2.2
6 28 115.5 200 270 160 5.3 93.8 20.5 11.5
6 50 175.0 260 270 160 5.8 93.5 11.2 8.6
6 75 323.5 410 270 160 7.1 93.8 2.8 5.7
6 110 457.0 532 262 160 7.0 104.0 0.8 6.2
16 32 168.5 255 295 185 8.8 93.7 19.7 9.0
16 42 175.5 270 295 185 9.2 93.3 20.9 8.4
16 75 469.0 555 295 185 11.4 93.7 2.9 4.2
65 16 85 458.0 544 287 185 10.2 104.0 2.5 5.8
25 25 172.0 270 295 185 10.6 93.5 43.1 8.6
25 40 183.5 295 295 185 11.5 92.7 29.4 7.5
25 75 481.3 585 295 185 13.4 93.5 4.9 4.0
25 85 464.0 564 281 185 12.5 105.0 4.0 5.5
40 26 220.1 311 295 185 11.6 92.7 32.5 7.1
40 50 395.1 485 295 185 12.9 92.7 10.3 4.6
40 75 580.1 670 295 185 14.2 92.7 4.8 3.3
6 25 117.0 206 300 190 7.7 105.0 28.2 14.5
6 47 175.5 265 300 190 8.2 104.7 15.4 11.1
6 75 353.5 445 300 190 10.2 105.0 3.3 6.8
6 100 420.0 502 292 190 9.5 116.0 1.0 7.8
16 30 169.0 260 310 200 10.6 104.9 27.3 11.5
16 50 353.9 440 310 200 12.9 104.9 7.2 6.8
16 75 516.9 605 310 200 14.3 104.9 3.4 5.0
80 16 85 426.0 524 302 200 12.8 117.0 4.0 7.7
25 23 175.0 280 310 200 12.9 104.7 58.7 10.7
25 50 450.2 545 310 200 16.0 104.7 10.3 5.5
25 75 531.3 640 310 200 16.8 104.7 5.8 4.7
25 85 441.0 552 296 200 15.3 118.5 6.0 7.3
40 25 240.1 335 310 200 14.9 103.9 38.4 8.6
40 50 450.1 545 310 200 17.0 103.9 11.4 5.3
40 75 650.1 745 310 200 19.1 103.9 5.4 3.9
DIN 2501
2) Intermediare values can
be linearally interpolated.
1) Deviation ± 30 % Reserve the right for technical changes
8