Advanced Technology Wholesale Flexible Pipe Fittings Flange Rubber Bellows Expansion Joint

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Small volume,small weight,good flexibility,easy installation and maintenance
It can made horizontal,axial and angular displacement when being installed.It can’t be restricted by the obstruction f pipe and the non-parallel of flange.
It can reduce noise passed through structure when it works and has strong shock absorption.

$73.00

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Rubber material of flange type flexible rubber expansion joint:
Rubber ball design
Permissible  operating data
Electrical
resistance
Hardness
shore A
Core (inner)
Reinforcing material
Cover (outer)
bar
°C
EPDM
EPDM
NBR
NBR
Nylon cord
Aramid
Nylon cord
Aramid
EPDM
EPDM
CR
CR
8
80
8
80
90
130
90
100
7×10²
5×10²
60
60
60
60
CSM
NBR
FKM
Nylon cord
Nylon cord
CSM
CR
EPDM
8
10
10
90
80
150
4×10²
5×10²
65
55
65

Main data of flange type flexible rubber expansion joint:
Nominal Diameter(DN)
Length(mm)
Diameter of the centralring of the bolt(mm)
Hole diameter-quantity
Axial Displacement
Horizontal Displacement(mm)
Deflection Angle(a1+a2)°
mm
inch
Extension(mm)
Compression(mm)
40
1½
165
110
18-4
30
50
45
35
50
2
165
125
18-4
30
50
45
35
65
2½
175
145
18-4
30
50
45
35
80
3
175
160
18-8
35
50
45
35
100
4
225
180
18-8
35
50
40
35
125
5
225
210
18-8
35
50
40
35
150
6
225
240
22-8
35
50
40
35
200
8
325
295
22-8
35
50
40
35
250
10
325
350
22-12
35
60
35
30
300
12
325
400
22-12
35
60
35
30
350
14
330
460
22-16
35
60
35
30
400
16
330
515
26-16
35
60
35
30
450
18
330
565
26-20
35
60
35
30
500
20
350
620
26-20
35
60
35
30
600
24
350
725
30-20
35
60
35
30
700
28
350
840
30-24
35
60
35
30
800
32
400
950
30-34
35
60
35
30
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