metal expansion joint
Bellow expansion joint is a compensation element, effective use of bellows telescopic body deformation, dimensional change in
absorption pipeline, pipe, thermal expansion and contraction caused by pipeline transverse and angular displacement. It is mainly
used for noise reduction and vibration reduction. It is widely used in modern industry.
Function of bellow expansion joint
1. compensating the axial, transverse and angular thermal deformations of the absorption duct.
2. to facilitate the installation and disassembly of valves and pipes.
3. to reduce the impact of equipment vibration on the pipeline.
Nominal diameter
|
1.5”-155” (DN32-DN4000)
|
Nominal pressure
|
0.6/1.0/1.6/2.5/4.0 Mpa
|
Compensation
|
18-400mm
|
Max. temperature
|
-40-450°C
|
Connection type
|
Flange,pipe
|
Flange material
|
stainless steel/carbon steel/alloy
|
Flange standard
|
ANSI/DIN/EN/JIS
|
Body material
|
SS304/316L
|
Connection datas of bellow expansion joints
|
||||||||
Nominal diameter (mm)
|
Quantity of ripple
|
Pressure level
|
Effective area of corrugated tube(cm2)
|
Maximum
external diameter (mm) |
||||
0.25
|
0.6
|
1.0
|
1.6
|
2.5
|
||||
Axial compensation
(mm) |
Stiffness
(N/mm) |
Axial compensation
(mm) |
Length(mm)
|
Toughness
(N/mm) |
||||
32
|
8
|
25/21
|
22/26
|
20/26
|
18/63
|
16
|
225
|
|
32
|
16
|
50/11
|
46/14
|
41/14
|
36/32
|
16
|
225
|
|
40
|
8
|
25/28
|
22/44
|
20/44
|
18/89
|
15/98
|
23
|
244
|
40
|
16
|
50/14
|
46/22
|
41/22
|
36/45
|
31/47
|
23
|
244
|
50
|
8
|
25/30
|
22/51
|
20/70
|
18/70
|
15/106
|
37
|
259
|
50
|
16
|
50/16
|
46/26
|
41/35
|
36/35
|
31/55
|
37
|
259
|
65
|
8
|
33/28
|
30/35
|
26/44
|
22/55
|
15/138
|
55
|
270
|
65
|
12
|
42/16
|
38/22
|
38/32
|
34/40
|
31/70
|
55
|
270
|
80
|
8
|
40/20
|
36/26
|
34/33
|
28/41
|
19/68
|
81
|
284
|
80
|
10
|
53/14
|
49/17
|
49/21
|
43/26
|
29/50
|
81
|
284
|
100
|
6
|
45/47
|
45/60
|
40/75
|
35/93
|
25/54
|
121
|
304
|
100
|
10
|
76/26
|
74/32
|
64/40
|
57/50
|
38/33
|
121
|
304
|
125
|
5
|
48/38
|
42/47
|
38/59
|
34/74
|
29/117
|
180
|
334
|
125
|
9
|
85/23
|
77/29
|
66/36
|
58/45
|
49/63
|
180
|
334
|
150
|
5
|
49/42
|
44/50
|
40/62
|
34/78
|
29/92
|
257
|
364
|
150
|
8
|
79/34
|
71/43
|
64/51
|
54/59
|
50/56
|
257
|
364
|
200
|
4
|
52/49
|
46/55
|
42/68
|
38/78
|
29/97
|
479
|
442
|
200
|
6
|
73/31
|
65/44
|
59/52
|
53/58
|
46/65
|
479
|
442
|
250
|
4
|
72/30
|
65/34
|
59/42
|
52/45
|
34/111
|
769
|
507
|
250
|
6
|
108/16
|
97/21
|
87/35
|
79/39
|
48/78
|
769
|
507
|
300
|
4
|
72/51
|
65/55
|
59/59
|
52/65
|
47/55
|
1105
|
562
|
300
|
6
|
108/32
|
97/35
|
87/37
|
79/41
|
71/47
|
1105
|
562
|
350
|
4
|
72/58
|
65/62
|
59/67
|
52/74
|
47/71
|
1307
|
622
|
350
|
6
|
108/38
|
87/41
|
87/44
|
79/48
|
71/45
|
1307
|
622
|
400
|
4
|
72/54
|
65/68
|
59/62
|
52/68
|
47/81
|
1611
|
700
|
400
|
6
|
108/36
|
97/39
|
87/43
|
79/47
|
71/47
|
1611
|
700
|
450
|
4
|
108/32
|
97/35
|
87/37
|
79/41
|
47/75
|
1972
|
760
|
450
|
6
|
162/20
|
145/22
|
131/23
|
118/25
|
71/52
|
1972
|
760
|
500
|
4
|
108/59
|
97/64
|
87/68
|
79/75
|
71/45
|
2445
|
835
|
500
|
6
|
162/34
|
145/37
|
131/39
|
118/43
|
106/28
|
2445
|
835
|
600
|
4
|
108/74
|
97/80
|
87/85
|
79/94
|
71/82
|
3534
|
980
|
600
|
6
|
162/42
|
145/45
|
131/49
|
118/53
|
106/48
|
3534
|
980
|
700
|
4
|
108/67
|
97/72
|
87/77
|
79/85
|
71/103
|
4717
|
1110
|
700
|
6
|
162/42
|
145/45
|
131/49
|
118/53
|
106/60
|
4717
|
1110
|
800
|
4
|
120/88
|
108/95
|
102/102
|
94/112
|
71/95
|
5822
|
1265
|
800
|
6
|
183/67
|
164/72
|
156/77
|
144/85
|
106/60
|
5822
|
1265
|
900
|
4
|
120/84
|
108/90
|
102/97
|
94/107
|
82/123
|
7620
|
1186
|
900
|
6
|
183/60
|
164/65
|
156/69
|
144/76
|
125/93
|
7620
|
1186
|
1000
|
4
|
120/91
|
108/98
|
102/105
|
94/116
|
82/117
|
9043
|
1286
|
1000
|
6
|
183/59
|
164/65
|
156/71
|
144/81
|
125/84
|
9043
|
1286
|