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Externally Pressurized Bellows

Hosexpress offers externally pressurized bellow joints also known as X-Flex, which are produced from fully annealed type 321 stainless steel sheet stock rolled into a tube and seam welded. This is the latest technology in forming the corrugations of bellows. Hosexpress also offers other alloys such as Inconel, Monel, Titanium and 316 stainless steel may be provided from our extensive inventory of raw materials. Externally pressurized bellow joints takes out pressure from the outside opposed to the inside of the joints. The externally pressurized expansion joint is a brilliant product for absorbing large amounts of axial movement in long, straight pipe runs. Please call us at HoseXpress for any questions about externally pressurized bellow joints.

TYPE EXS SINGLE

     
Axial Movements
Spring Rate
Size
(in.)
PSI
600°F
O.A.L.
Comp.
Ext.
150#
300#
2
150
300
25
34
42
4
6
8
1
2
2
190
130
97
388
260
194
2-1/2
150
300
25
34
40
4
6
8
1
2
2
120
80
72
240
160
125
3
150
300
25
34
40
4
6
8
1
2
2
150
90
85
380
230
190
4
150
300
25
34
40
4
6
8
1
2
2
185
116
94
540
340
270
5
150
300
25
34
40
4
6
8
1
2
2
390
270
210
990
670
490
6
150
300
27
35
47
4
6
8
1
2
2
470
315
250
1180
800
590
8
150
300
27
35
42
4
6
8
1
2
2
650
410
325
1450
850
710
10
150
300
27
35
42
4
6
8
1
2
2
780
490
390
1740
1015
870
12
150
300
29
37
45
4
6
8
1
2
2
980
610
520
2020
1213
1050
14
150
300
29
37
45
4
6
8
1
2
2
1940
1220
980
3896
2370
1930
16
150
300
29
37
45
4
6
8
1
2
2
2180
1370
1080
4320
2630
2152

TYPE EXD DOUBLE
     
Axial Movements
Spring Rate
Size
(in.)
PSI
600°F
O.A.L.
Comp.
Ext.
150#
300#
2
150
300
40
60
72
8
12
16
2
4
4
190
130
97
388
260
194
2-1/2
150
300
40
60
72
8
12
16
2
4
4
120
80
72
240
160
125
3
150
300
40
60
72
8
12
16
2
4
4
150
90
85
380
230
190
4
150
300
40
60
72
8
12
16
2
4
4
185
116
94
540
340
270
5
150
300
40
60
72
8
12
16
2
4
4
390
270
210
990
670
490
6
150
300
42
60
72
8
12
16
2
4
4
470
315
250
1180
800
590
8
150
300
40
60
72
8
12
16
2
4
4
650
410
325
1450
850
710
10
150
300
40
60
72
8
12
16
2
4
4
780
490
390
1740
1015
870
12
150
300
46
64
72
8
12
16
2
4
4
980
610
520
2020
1213
1050
14
150
300
46
64
76
8
12
16
2
4
4
1940
1220
980
3896
2370
1930
16
150
300
46
64
76
8
12
16
2
4
4
2180
1370
1080
4320
2630
2152
For sizes 18" and larger consult factory with application details. All units can be provided with pipe nipples, along with anchor bases, drains and other accessories. All data is for reference only. Specific requirements should be sent to the factory for engineering review. spring rates shown are for each bellows.

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