Product Introduction
Double Flange Limited Expansion Joint is composed of body, obstructing ring, gland, and expansion joint. Pipe can expansion freely within the expansion amount, once beyond the maximum expansion amount, limited appear, to ensure the safety operation, especially used in the pipeline with vibration or certain angle.
Technical Parameters
Order |
Name |
Quantity |
Materials |
1 |
Body |
1 |
QT400-15、Q235A ZG230-450、20 |
2 |
Seal Ring |
1 |
NBR |
3 |
Gland |
1 |
QT400-15、Q235A 、ZG230-450、20 |
4 |
Limited Pipe |
1 |
Q235A 、20、16Mn |
5 |
Nut |
4n |
Q235A、20、ICr18Ni9Ti |
6 |
Long Bolt |
n |
Q235A、35、ICr18Ni9Ti |
7 |
Bolt |
n |
Q235A、35、ICr18Ni9Ti |
DN |
Pipe Diameter
Dw |
Size |
Stretching amount
△L |
Flange joint Size |
0.6MPa |
1.0MPa |
Dw |
Do |
L |
L1 |
|
D |
D1 |
n-do |
D |
D1 |
n-do |
|
65 |
76 |
76 |
340 |
105 |
50 |
160 |
130 |
4-Φ14 |
185 |
145 |
4-Φ18 |
|
80 |
89 |
89 |
190 |
150 |
4-Φ18 |
200 |
160 |
8-Φ18 |
|
100 |
108 |
108 |
210 |
170 |
220 |
180 |
|
114 |
114 |
|
125 |
133 |
133 |
340 |
105 |
50 |
240 |
200 |
8-Φ18 |
250 |
210 |
|
140 |
140 |
|
150 |
159 |
159 |
265 |
225 |
285 |
240 |
8-Φ22 |
|
168 |
168 |
|
200 |
219 |
219 |
320 |
280 |
340 |
295 |
|
250 |
273 |
273 |
375 |
335 |
12-Φ18 |
395 |
350 |
12-Φ22 |
|
300 |
325 |
325 |
350 |
130 |
65 |
440 |
395 |
12-Φ22 |
445 |
400 |
|
350 |
377 |
377 |
490 |
445 |
505 |
460 |
16-Φ22 |
|
400 |
426 |
426 |
540 |
495 |
16-Φ22 |
565 |
515 |
16-Φ26 |
|
450 |
480 |
480 |
595 |
550 |
615 |
565 |
20-Φ26 |
|
500 |
530 |
530 |
645 |
600 |
20-Φ22 |
670 |
620 |
|
600 |
630 |
630 |
755 |
705 |
20-Φ26 |
780 |
725 |
20-Φ30 |
|
700 |
720 |
720 |
860 |
810 |
24-Φ26 |
895 |
840 |
24-Φ30 |
|
800 |
820 |
820 |
600 |
220 |
130 |
975 |
920 |
24-Φ30 |
1015 |
950 |
24-Φ33 |
|
900 |
920 |
920 |
1075 |
1020 |
1115 |
1050 |
28-Φ33 |
|
1000 |
1020 |
1020 |
1175 |
1120 |
28-Φ30 |
1230 |
1160 |
28-Φ36 |
|
1200 |
1220 |
1220 |
1405 |
1340 |
32-Φ33 |
1455 |
1380 |
32-Φ40 |
|
1400 |
1420 |
1428 |
640 |
1630 |
1560 |
36-Φ36 |
1675 |
1590 |
36-Φ42 |
|
1500 |
1520 |
1528 |
1730 |
1660 |
- |
- |
- |
|
1600 |
1620 |
1628 |
1830 |
1760 |
40-Φ36 |
1915 |
1820 |
40-Φ48 |
|
1800 |
1820 |
1828 |
2045 |
1970 |
44-Φ40 |
2115 |
2020 |
44-Φ48 |
|
2000 |
2020 |
2030 |
2265 |
2180 |
48-Φ42 |
2325 |
2230 |
48-Φ48 |
|
2200 |
2220 |
2230 |
2475 |
2390 |
52-Φ42 |
2550 |
2440 |
52-Φ56 |
|
2400 |
2420 |
2430 |
2685 |
2600 |
56-Φ42 |
2760 |
2650 |
56-Φ56 |
|
2600 |
2620 |
2630 |
710 |
240 |
140 |
2905 |
2810 |
60-Φ48 |
2960 |
2850 |
60-Φ56 |
|
2800 |
2820 |
2830 |
3115 |
3020 |
64-Φ48 |
3180 |
3070 |
64-Φ56 |
|
3000 |
3020 |
3030 |
3315 |
3220 |
68-Φ48 |
3405 |
3290 |
68-Φ60 |
|
3200 |
3220 |
3230 |
3525 |
3430 |
72-Φ48 |
- |
- |
- |
|
3400 |
3420 |
3430 |
3735 |
3640 |
76-Φ48 |
- |
- |
- |
|
3600 |
3620 |
3630 |
3970 |
3860 |
80-Φ56 |
- |
- |
- |
|
Note: this size is accord with GB/T12465-2002 standard |
|