Gimbals Expansion Joints
Gimbals Expansion Joints
• Product Features
The difference between gimbals expansion joint from hinged expansion joint is that the former has a common floating gimbals ring with two perpendicular pairs of hinges affixed to it. Gimbals expansion joints can absorb rotation in any plane and a combination of two or three sets should be used to function properly. The common floating gimbals ring , hinges and pins are designed to restrain the thrust of the expansion joint due to initial pressure.
• Applicable Conditions
Working pressure: 0.1 through 2.5 (MPa)
Working temperature: -20 through 450 (℃)
Service life: 1000 (times)
Flange：GB、ANSI、JIS、DIN etc
• Product Specification
Nominal ID(DN): Φ50 through 6000 (mm)
Material
1.Bellow：Stainless steels 304 316L 321 254 309 Inconel625 31803 etc
2.Flange、weld Ends：Carbon steel Stainless steels etc
3.Tie rod Nuts：Carbon steel Stainless steels etc
• The product code consists of following elements
• Guides for expansion Joint installation
1. The expansion joint shall be installed according to the engineering drawing of pipe line and the expansion joint installations
2. In order to insure proper function of any expansion joints, it is necessary that all pipe lines in which expansion joints are located be suitably guided and anchored. The guides and anchors must be installed strictly in accordance to relevant technical documentation. Please refer to the “guideline for installation of Expansion Joints” about the principle of using guides and anchors.
3. Since the bellows used in expansion joints are made of thin stainless steel sheets, special attention shall be paid when transporting, handing and welding to avoid damage of bellows caused by dents, scores, arc strikes and weld spatters.
4. Any foreign laterals in the bellows and pipes shall be removed to ensure the proper function of expansion joints before installation.
5. If the flow direction is specified, be sure to install expansion joint with the proper orientation with the respect of flow direction arrow.
6. No movement of the expansion joint (such as axial compression or extension, lateral offset, or rotation) due to piping misalignment shall be imposed during installation so as to ensure proper function of the bellows.
• Date sheet
|
|
|
PN
MPa
|
Dia.
DN
（mm）
|
Overall
Length
（mm）
|
Angular
rotation
αo(o)
|
Angular
spring rate
kαo
N.m／(o)
|
Max
Dia
B(mm)
|
End pipe
doxS(mm)
|
| 0.6 |
100
|
600
|
±8.3
|
16
|
400
|
φ108x4.5
|
|
125
|
600
|
±7.1
|
27
|
440
|
φ133x4.5
|
|
150
|
600
|
±6.3
|
43
|
460
|
φ159x4.5
|
|
200
|
600
|
±7.2
|
100
|
550
|
φ219x6
|
|
250
|
600
|
±6.1
|
177
|
660
|
φ273x9
|
|
300
|
650
|
±6.5
|
208
|
700
|
φ325x9
|
|
350
|
650
|
±5.8
|
309
|
750
|
φ377x10
|
|
400
|
650
|
±5.4
|
432
|
820
|
φ426x10
|
|
450
|
750
|
±5.0
|
593
|
870
|
φ478x10
|
|
500
|
750
|
±4.6
|
784
|
950
|
φ529x10
|
|
600
|
850
|
±4.0
|
778
|
1070
|
φ630x10
|
|
700
|
850
|
±4.6
|
1077
|
1190
|
φ720x10
|
|
800
|
900
|
±4.0
|
1510
|
1290
|
φ820x10
|
|
900
|
900
|
±3.6
|
2054
|
1450
|
φ920x10
|
|
1000
|
1000
|
±3.4
|
4040
|
1680
|
φ1020x10
|
| 1.0 |
100
|
600
|
±7.0
|
27
|
400
|
φ108x4.5
|
|
125
|
600
|
±6.1
|
46
|
440
|
φ133x4.5
|
|
150
|
600
|
±5.4
|
74
|
460
|
φ159x4.5
|
|
200
|
650
|
±4.0
|
225
|
560
|
φ219x6
|
|
250
|
650
|
±4.0
|
400
|
650
|
φ273x9
|
|
300
|
650
|
±4.2
|
478
|
700
|
φ325x9
|
|
350
|
700
|
±3.8
|
714
|
760
|
φ377x10
|
|
400
|
700
|
±3.4
|
1003
|
870
|
φ426x10
|
|
450
|
750
|
±3.2
|
1378
|
970
|
φ478x10
|
|
500
|
750
|
±3.0
|
1827
|
1000
|
φ529x10
|
|
600
|
900
|
±4.0
|
2986
|
1100
|
φ630x10
|
|
700
|
950
|
±4.0
|
1928
|
1230
|
φ720x10
|
|
800
|
1000
|
±3.6
|
2661
|
1360
|
φ820x10
|
|
900
|
1000
|
±3.2
|
3560
|
1600
|
φ920x10
|
|
1000
|
1100
|
±2.8
|
10463
|
1750
|
φ1020x10
|
| 1.6 |
100
|
600
|
±5.9
|
52
|
410
|
φ108x4.5
|
|
125
|
600
|
±5.1
|
89
|
440
|
φ133x4.5
|
|
150
|
600
|
±4‘6
|
142
|
460
|
φ159x4.5
|
|
200
|
650
|
±3.5
|
225
|
560
|
φ219x6
|
|
250
|
650
|
±3.5
|
400
|
710
|
φ273x9
|
|
300
|
750
|
±3.5
|
922
|
810
|
φ325x9
|
|
350
|
750
|
±3.1
|
1379
|
900
|
φ377x10
|
|
400
|
750
|
±2.9
|
1942
|
980
|
φ426x10
|
|
450
|
850
|
±2.7
|
2671
|
1150
|
φ478x10
|
|
500
|
850
|
±2.6
|
3545
|
1280
|
φ529x10
|
|
600
|
1000
|
±3.2
|
3150
|
1350
|
φ630x10
|
|
700
|
1100
|
±3.2
|
3507
|
1400
|
φ720x10
|
|
800
|
1100
|
±2.5
|
4917
|
1500
|
φ820x10
|
|
900
|
1200
|
±2.8
|
6687
|
1730
|
φ920x10
|
|
1000
|
1200
|
±2.6
|
10618
|
2000
|
φ1020x10
|
| 
