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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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