Product Name: Model JF-250STG Axial Expansion Joint （Screwed Ends） Feature:
Specification: Size Range: DN15~DN100 (1/2”~4”)
Parts
250ST
250STC
250STG
250STGC
Standard Material
Optional Material
1
Bellows
◎
S.S.304
S.S.316
2
Internal Sleeve
3
Flange
Carbon Steel
S.S.304/S.S.316
4
Tie Rods
5
Lugs
6
External Covers
Specification
OAL
Thickness of Weld Ends
Axial Movement
Axial Spring Rate
Effective Area
mm
ins
N/mm
cm2
15
1/2
250
300
350
2.8
+10 -25
13
20
3/4
2.9
19
25
3.2
28
9
32
1 1/4
400
450
3.5
+10 -40
18
40
1 1/2
22
21
50
3.8
29
65
2 1/2
4.2
46
80
53
67
100
4.5
76
123
