絕緣接頭Insulated joint
一、絕緣接頭概述：
絕緣接頭是燃氣輸配和石油管線系統(tǒng)中不可缺少的重要管道附件，主要應用于燃氣輸配系統(tǒng)和燃氣調壓站，其作用是將燃氣輸配管線的各段間、燃氣調壓站與輸配管線間相互絕緣隔離，保護其不受電化學腐蝕， 延長使用壽命，還可直接埋地使用。本公司的整體式絕緣接頭是在同國外產(chǎn)品進行對比、分析、研究的基礎上著重針對我國燃氣輸配管線中經(jīng)常出現(xiàn)的泄漏問題進行設計的。
二、產(chǎn)品結構和工作原理：
整體式絕緣接頭由下面各零件組成：上、下管、套筒、絕緣件、密封件、絕緣涂層。在絕緣接頭的上、下管對接端面件，夾有絕緣件和密封件，形成具有絕緣性能的雙密封結構。套筒采用坡口焊接或與上導管直接焊接兩種形式，將絕緣件和上、下管牢固封裹在里面，形成“密封容器”，從而既保證了良好的絕緣效果，又大大提高了絕緣結構的承壓能力。
|
|
|
|
|
|
五、絕緣接頭參數(shù)表
PN25壓力等級絕緣接頭
|
型號Type |
規(guī)格 |
A |
B |
L |
鋼管材質 |
|
DN25-25 |
DN25 |
34 |
4 |
250 |
鋼管(Steel Pipe) 20GB/T8163 |
|
DN25B-25 |
32 |
4 |
250 |
||
|
DN40-25 |
DN40 |
48 |
4 |
300 |
|
|
DN50-25 |
DN50 |
60 |
4 |
350 |
|
|
DN50B-25 |
57 |
4 |
350 |
||
|
DN65-25 |
DN65 |
76 |
5 |
350 |
|
|
DN80-25 |
DN80 |
89 |
5 |
400 |
|
|
DN100-25 |
DN100 |
114 |
5 |
400 |
|
|
DN100B-25 |
108 |
5 |
400 |
||
|
DN125-25 |
DN125 |
140 |
6 |
500 |
|
|
DN125B-25 |
133 |
6 |
500 |
||
|
DN150-25 |
DN150 |
168 |
7 |
500 |
|
|
DN150B-25 |
159 |
7 |
500 |
||
|
DN200-25 |
DN200 |
219 |
7 |
500 |
|
|
DN250-25 |
DN250 |
273 |
8 |
800 |
|
|
DN300-25 |
DN300 |
325 |
8 |
800 |
|
|
DN350-25 |
DN350 |
356 |
8 |
900 |
|
|
DN350B-25 |
377 |
8 |
900 |
||
|
DN400-25 |
DN400 |
406 |
8 |
900 |
鋼管(Steel Pipe) 16MnRGB6654 |
|
DN400B-25 |
426 |
8 |
900 |
||
|
DN450-25 |
DN450 |
457 |
8 |
900 |
|
|
DN450B-25 |
480 |
8 |
900 |
||
|
DN500-25 |
DN500 |
508 |
10 |
900 |
|
|
DN500B-25 |
530 |
10 |
900 |
||
|
DN600-25 |
DN600 |
610 |
10 |
1000 |
|
|
DN600B-25 |
630 |
10 |
1000 |
||
|
DN700-25 |
DN700 |
711 |
10 |
1200 |
|
|
DN700B-25 |
720 |
10 |
1200 |
||
|
DN800-25 |
DN800 |
813 |
12 |
1300 |
|
|
DN800B-25 |
820 |
12 |
1300 |
PN40壓力等級絕緣接頭
|
型號Type |
規(guī)格 Specification |
A |
B |
L |
鋼管材質 |
|
DN25-40 |
DN25 |
34 |
4 |
250 |
鋼管(Steel Pipe) 20GB/T8163 |
|
DN25B-40 |
32 |
4 |
250 |
||
|
DN40-40 |
DN40 |
48 |
4 |
300 |
|
|
DN50-40 |
DN50 |
60 |
4 |
350 |
|
|
DN50B-40 |
57 |
4 |
350 |
||
|
DN65-40 |
DN65 |
76 |
5 |
350 |
|
|
DN80-40 |
DN80 |
89 |
5 |
400 |
|
|
DN100-40 |
DN100 |
114 |
5 |
400 |
|
|
DN100B-40 |
108 |
5 |
400 |
||
|
DN125-40 |
DN125 |
140 |
6 |
500 |
|
|
DN125B-40 |
133 |
6 |
500 |
||
|
DN150-40 |
DN150 |
168 |
7 |
500 |
|
|
DN150B-40 |
159 |
7 |
500 |
||
|
DN200-40 |
DN200 |
219 |
7 |
500 |
|
|
DN250-40 |
DN250 |
273 |
8 |
800 |
|
|
DN300-40 |
DN300 |
325 |
10 |
800 |
|
|
DN350-40 |
DN350 |
356 |
12 |
900 |
|
|
DN350B-40 |
377 |
12 |
900 |
||
|
DN400-40 |
DN400 |
406 |
10 |
900 |
鋼板(Steel Plate) 16MnR |
|
DN400B-40 |
426 |
10 |
900 |
||
|
DN450-40 |
DN450 |
457 |
10 |
900 |
|
|
DN450B-40 |
480 |
10 |
900 |
||
|
DN500-40 |
DN500 |
508 |
12 |
900 |
|
|
DN500B-40 |
530 |
12 |
900 |
||
|
DN600-40 |
DN600 |
610 |
14 |
1000 |
|
|
DN600B-40 |
630 |
14 |
1000 |
||
|
DN700-40 |
DN700 |
711 |
14 |
1200 |
|
|
DN700B-40 |
720 |
14 |
1200 |
||
|
DN800-40 |
DN800 |
813 |
16 |
1300 |
|
|
DN800B-40 |
820 |
16 |
1300 |
PN64壓力等級絕緣接頭 PN64
|
型號Type |
規(guī)格 |
A |
B |
L |
鋼管材質 |
|
DN25-64 |
DN25 |
34 |
4 |
250 |
鋼管(Steel Pipe) 20 GB/T8163 |
|
DN25B-64 |
32 |
4 |
250 |
||
|
DN40-64 |
DN40 |
48 |
4 |
300 |
|
|
DN50-64 |
DN50 |
60 |
4 |
350 |
|
|
DN50B-64 |
57 |
4 |
350 |
||
|
DN65-64 |
DN65 |
76 |
5 |
350 |
|
|
DN80-64 |
DN80 |
89 |
5 |
400 |
|
|
DN100-64 |
DN100 |
114 |
5 |
500 |
鋼管(Steel Pipe) 16Mn GB/T6479 |
|
DN100B-64 |
108 |
5 |
500 |
||
|
DN125-64 |
DN125 |
140 |
6 |
600 |
|
|
DN125B-64 |
133 |
6 |
600 |
||
|
DN150-64 |
DN150 |
168 |
7 |
600 |
|
|
DN150B-64 |
159 |
7 |
600 |
||
|
DN200-64 |
DN200 |
219 |
8 |
600 |
|
|
DN250-64 |
DN250 |
273 |
10 |
800 |
|
|
DN300-64 |
DN300 |
325 |
12 |
800 |
|
|
DN350-64 |
DN350 |
356 |
8.8 |
1000 |
L450*1(X65) GB/T9711 |
|
DN400-64 |
DN400 |
406 |
10 |
1000 |
|
|
DN450-64 |
DN450 |
457 |
11 |
1000 |
|
|
DN500-64 |
DN500 |
508 |
12.5 |
1200 |
|
|
DN600-64 |
DN600 |
610 |
16 |
1200 |
|
|
DN700-64 |
DN700 |
711 |
17.5 |
1300 |
|
|
DN800-64 |
DN800 |
813 |
20 |
1300 |
