Features
Both ends of bellows are made of standard flanges, angle flanges or butt-welding ends. This type
of bellows is mainly used for relatively low-pressure piping.
  Uses
Absorption of stress from expansion or contraction of low-pressure gas piping, exhaust pipe or duct,
or absorption of vibration from engine exhaust tube or exits and entrances of blowers
Working Pressure : -1 ㎏f/㎠ ~ 5 ㎏f/㎠
Working Temperature : 220℃ or below
  Specifications
Nominal Dia Bellows Thickness (㎜) P×H (㎜) Number of Arches Interfacial Length(㎜) Axial Expansion Length Axis-perpendicular Expansion Length Angular Displacement Expansion Reaction Force
X(㎏/㎜)		 Expansion Reaction Force
Y(㎏/㎜)		 Effective Dia (㎜) Effective Sectional Area(㎠)
50A 0.4 10×12 10 240 12 ± 5.5 20.2 5 3 68 36
65 0.4 10×12 10 250 12 ± 4.4 16.5 6 6 83 54
80 0.4 10×16 6 250 12 ±3.9 14.1 5 9 102 82
〃 〃 12 340 25 ±15.8 28.1 3 2
100 0.4 23×24 6 250 12 ±3.3 11.8 6 15 122.0 117
〃 〃 12 360 25 ±13.0 23.6 3 2
125 0.6 20×26 5 250 15 ± 3.1 10.8 9 32 154.0 186
〃 〃 10 360 30 ±12.5 22.3 5 5 5.5
150 0.8 35×35 5 300 15 ± 4.0 9.9 16.9 43.1 180.0 254
〃 〃 10 440 30 ±15.9 19.9 8.5 5.4 5.5
200 0.8 45×38 4 300 16 ±2.6 7.6 14.0 83.4 239.0 449
〃 〃 8 440 32 ±10.7 15.3 7.0 10.4 5.5
250 1.0 45×42 4 300 18 ± 2.9 7.1 25.2 164.6 292.0 670
〃 〃 7 440 32 ± 8.8 12.4 14.4 30.7 5.5
300 1.0 50×50 3 300 18 ± 2.3 6.0 27.4 269.6 346.0 940
〃 〃 5 440 30 ± 6.5 9.9 16.4 58.2 5.5
〃 〃 7 524 42 ±12.7 13.9 11.7 21.2 5.5
350 1.0 50×50 3 300 23 ± 2.9 6.6 18.8 189.0 388.0 1182
〃 〃 5 440 37 ± 8.0 11.1 11.3 40.8
〃 〃 6 524 45 ±11.6 13.3 9.4 23.6
400 1.0 50×50 3 300 23 ± 2.6 6.9 21.3 271.8 438.0 1507
〃 〃 5 475 37 ± 7.1 9.8 12.8 58.7
〃 〃 6 545 45 ±10.3 11.8 10.6 34.0
450 1.0 50×50 3 300 23 ± 2.2 5.1 24.8 434.2 512 2059
〃 〃 5 475 37 ± 6.1 8.4 14.9 93.8
〃 〃 6 545 45 ± 8.8 10.1 12.4 54.2
500 1.0 50×50 3 300 23 ± 2.1 4.8 26.1 500.9 537 2265
〃 〃 5 475 37 ± 5.8 8.0 15.6 108.2
〃 〃 6 545 45 ± 8.4 9.6 13.0 62.6
600 1.2 60×60 3 300 16 ± 1.0 2.8 48.2 2199.6 662 3442
〃 〃 5 475 40 ± 6.0 7.0 19.3 140.8
〃 〃 6 545 48 ± 8.7 8.3 16.1 81.5
700 1.2 60×60 3 300 16 ± 0.8 2.4 55.6 3381.0 764 4584
〃 〃 5 475 40 ± 5.2 6.0 22.2 216.4
〃 〃 6 545 48 ± 7.5 7.2 18.5 125.2
800 1.5 60×60 3 300 24 ± 1.6 3.2 82.0 2839.7 865 5877
〃 〃 5 475 40 ± 4.6 5.3 49.2 613.4
〃 〃 6 545 48 ± 6.6 6.4 41.0 355.0
900 1.5 60×60 3 300 24 ± 1.5 2.9 90.4 3809.5 954 7148
〃 〃 5 475 40 ± 4.1 4.8 54.2 822.9
〃 〃 6 545 48 ± 6.0 5.8 45.2 476.2
1000 1.5 60×60 3 400 24 ± 1.3 2.6 100.5 5225.7 1060 8825
〃 〃 5 580 40 ± 3.7 4.3 60.3 1128.7
〃 〃 6 640 48 ± 5.4 5.2 50.2 653.2
1100 1.5 60×60 3 400 24 ±1.2 2.4 110.1 6884.1 1162 10605
〃 〃 5 580 40 ± 3.4 4.0 66.1 1487.0
〃 〃 6 640 48 ± 5.0 4.7 55.1 860.5
1200 1.5 60×60 3 400 24 ± 1.1 3.2 119.1 8714.3 1257 12410
〃 〃 5 580 40 ± 3.2 3.6 71.5 1882.3
〃 〃 6 640 48 ± 4.5 4.4 59.6 1089.3
1300 1.5 60×60 3 400 24 ± 1.0 2.0 128.5 10939.7 1356 14441
〃 〃 5 580 40 ± 2.9 3.4 77.1 2363.0
〃 〃 6 640 48 ± 4.2 4.1 64.3 1367.5

Values of axial expansion length, axis-perpendicular expansion length and angular displacement are values that
guarantee 7000 cycles at discrete operations.