Dismantling Joint

Dismantling Joint

A dismantling joint is an important component in pipeline systems that allows for the easy disassembly and reassembly of flanged or coupled pipes. It serves multiple purposes, such as facilitating maintenance, repair, or replacement of pipeline sections. The key components of a dismantling joint include two flanged or coupled ends, a telescopic or sliding mechanism, and bolts with nuts.

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Main parts and materials
No
Name
Material
1
Bolt
Zinc plated steel
2
Seal ring
EPDM
3
Body
Ductile iron

Outline and Connecting Measurement
DN
L1
L2
L
DE
OD
b
f
D1
D2
D3
N-Holes
N-Bolt(Long)
50
73
180
200
66
70
16.0
3
165
125
99
4-o19
4-M16*310
60
73
180
200
77
81
16.0
3
175
135
108
4-o19
4-M16*310
65
73
180
200
82
86
16.0
3
185
145
118
4-o19
4-M16*310
80
73
180
210
98
103
16.0
3
200
160
132
8-o19
8-M16*310/center>
100
73
180
220
118
123
16.0
3
220
180
156
8-o19
8-M16*310
125
76
180
220
144
149
16.0
3
250
210
184
8-o19
8-M20*340
150
77
180
230
170
175
16.0
3
285
240
211
8-o23
8-M16*310
200
78
200
230
222
227
17.0
3
340
295
266
12-o23
12-M20*340
250
92
200
250
274
279
19.0
3
400
355
319
12-o28
12-M24*370
300
93
220
250
326
331
20.5
4
455
410
370
12-o28
12-M24*410
350
112
220
270
378
384
22.5
4
520
470
429
16-o29
16-M24*410
400
113
220
280
429
435
24.0
4
580
525
480
16-o31
16-M27*430
450
113
220
280
480
486
26.0
4
640
585
530
20-o31
20-M27*430
500
115
240
300
532
538
27.5
4
715
650
582
20-o34
20-M30*440
600
115
240
300
635
641
31.0
5
840
770
682
20-o37
20-M33*480
700
115
260
320
738
744
34.5
5
910
840
794
24-o37
24-M33*480
800
115
260
320
842
848
38.0
5
1025
950
901
24-o40
24-M36*520
900
115
280
340
945
953
41.5
5
1125
1050
1001
28-o40
28-M36*520
1000
130
280
360
1048
1058
45.0
5
1255
11470
1112
28-o43
28-M39*560
1100
130
280
360
1152
1162
48.5
5
1355
1270
1215
32-o43
32M39*560
1200
130
300
360
1255
1265
52.0
5
1485
1390
1328
32-o49
32-M45*600
1400
130
300
380
1462
1472
55.0
5
1685
1590
1530
36-o49
36-M45*630
1500
180
320
400
1565
1575
57.0
5
1820
1710
1640
36-o56
36-M52*665
1600
180
320
420
1668
1683
60.0
5
1930
1820
1750
40-o56
40-M522*665

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