FREE TYPE EXPANSION JOINT

It’s designed that end pipe and flange are welded at the both edge of bellows. And it is mainly used for expansion of low pressure pipe and absorbing vibration.

  • Application

    For absorption of extension/compression low-pressure piping, exhaust piping , ducts, flues, etc, and for vibration absorption of suction and exhaust pipes of engines and blowers, and at the inlet and outlet of pumps, etc.

  • Pressure

    0.1 MPa to 0.3 MPa

Diameter
No.		 Width
(mm)		 Q x W
(mm)		 Bellows
No.		 Length
(mm)		 Axial
Mov.		 Laternal
Defl.		 Angular
Rotation		 Spinning Rate Effective
Diameter		 Effective
Section Area
kx ky
50A 0.4 10x12 10 240 12 5.5 20.2 5 20.2 20.2 20.2
65A 0.4 10x12 10 250 12 16.5 16.5 6 16.5 16.5 16.5
80A 0.4 10x16 6
12		 250
340		 12
25		 3.9
15.8		 14.1
28.1		 5
3		 14.1
28.1		 14.1
28.1		 14.1
28.1
100A 0.4 23x24 6
12		 250
360		 12
25		 3.3
13.0		 11.8
23.6		 6
3		 11.8
23.6		 11.8
23.6		 11.8
23.6
125A 0.8 20x26 5
10		 300
440		 12
25		 3.1
12.5		 10.8
22.3		 9
5		 10.8
22.3		 10.8
22.3		 10.8
22.3
150A 0.8 35x35 5
10		 300
440		 15
30		 4.0
15.9		 9.9
19.9		 16.9
8.5		 9.9
19.9		 9.9
19.9		 9.9
19.9
200A 1.0 45x38 4
8		 300
440		 16
32		 2.6
10.7		 7.6
15.3		 14.0
7.0		 7.6
15.3		 7.6
15.3		 7.6
15.3
250A 1.0 45x42 4
7		 300
440		 18
32		 2.9
8.8		 7.1
12.4		 25.2
14.4		 7.1
12.4		 7.1
12.4		 7.1
12.4
300A 1.0 50x50 3
5
7		 300
440
524		 18
32		 2.3
6.5
12.4		 6.0
9.9
13.9		 27.4
16.4
11.7		 6.0
9.9
13.9		 6.0
9.9
13.9		 6.0
9.9
13.9
350A 1.0 50x50 3
5
6		 300
440
524		 23
37
45		 2.9
8.0
11.6		 6.6
11.1
13.3		 18.8
11.3
9.4		 6.6
11.1
13.3		 6.6
11.1
13.3		 6.6
11.1
13.3
400A 1.0 50x50 3
5
6		 300
475
545		 23
37
45		 2.6
7.1
10.3		 9.8
11.8
5.1		 21.3
12.8
10.6		 9.8
11.8
5.1		 9.8
11.8
5.1		 9.8
11.8
5.1
450A 1.0 50x50 3
5
6		 300
475
545		 23
37
45		 2.2
6.1
8.8		 8.4
10.1
4.8		 24.8
14.9
12.4		 8.4
10.1
4.8		 8.4
10.1
4.8		 8.4
10.1
4.8
500A 1.2 50x50 3
5
6		 300
475
545		 23
37
45		 2.2
6.1
8.8		 8.0
9.6
2.8		 26.1
15.6
13.0		 8.0
9.6
2.8		 8.0
9.6
2.8		 8.0
9.6
2.8
600A 1.2 60x60 3
5
6		 300
475
545		 16
40
49		 1.0
6.0
8.7		 7.0
8.3
2.4		 48.2
19.3
16.1		 7.0
8.3
2.4		 7.0
8.3
2.4		 7.0
8.3
2.4
700A 1.5 60x60 3
5
6		 300
475
545		 16
40
49		 0.8
5.2
7.5		 2.0
7.2
3.2		 55.6
22.2
18.5		 2.0
7.2
3.2		 2.0
7.2
3.2		 2.0
7.2
3.2
800A 1.5 60x60 3
5
6		 400
580
600		 24
40
48		 1.6
4.5
6.6		 5.3
7.4
2.9		 82.0
49.2
41.0		 5.3
7.4
2.9		 5.3
7.4
2.9		 5.3
7.4
2.9
  • Q = Bellows Pitch W = Bellows Height