Hotline:
Nominal diameter: DN65~DN3200
Nominal pressure: PN10
Operating temperature: 0°C~85°C
Seal test: 1.25PN
Shell test: 1.5PN
Suitable medium: water
Manufacturing standard: GB/T12465
Flange connection standard: GB/T9119
Structure length standard: GB/T12465
Test standard: GB/T12465
The main function of the double-flange expansion joint is to extend and compress within a certain range in the pipeline, compensate for the displacement caused by thermal expansion and cold contraction of the pipeline, and facilitate the installation, disassembly and maintenance of valves and water pumps. If the free expansion of the pipe exceeds the allowable expansion, the limit stud and nut prevent the nozzle from disconnecting. It is suitable for pipeline connection with vibration, slope or bend. This series of products are widely used in urban water supply and drainage, sewage treatment and other industries of fluid transmission pipeline.
Product characteristics
1, flexible, safe limit, reliable sealing, convenient loading and unloading structure is reasonable, simple and compact, reliable sealing performance;
2, not affected by space, can be installed in any position of the pipeline;
3. Absorption of pipeline axial displacement within the allowable range;
4, the connecting parts are made of stainless steel, the body is sprayed with epoxy resin, and the anti-corrosion effect is good.
Main contour connection dimensions
|
DN |
DW |
Overall dimension |
Regulating quantity△ |
Flange connection size |
|||||||||||
|
0.6MPa |
1.0MPa |
1.6MPa | |||||||||||||
|
Dw |
Do |
L |
L2 |
L1 |
D |
K |
n-Th |
D |
K |
n-Th |
D |
K |
n-Th |
||
|
65 |
76 |
76 |
400 |
200 |
400 |
±20 |
160 |
130 |
4-M12 |
185 |
145 |
4-M16 |
185 |
145 |
4-M16 |
|
80 |
89 |
89 |
190 |
150 |
4-M16 |
200 |
160 |
4-M16 |
200 |
160 |
4-M16 |
||||
|
100 |
114 |
114 |
210 |
170 |
220 |
180 |
220 |
180 |
- | ||||||
|
125 |
140 |
140 |
240 |
200 |
4-M16 |
250 |
210 |
4-M20 |
250 |
210 |
- | ||||
|
150 |
168 |
168 |
265 |
225 |
285 |
240 |
285 |
240 |
4-M20 |
||||||
|
200 |
219 |
219 |
320 |
380 |
340 |
295 |
340 |
295 |
6-M20 |
||||||
|
250 |
273 |
273 |
375 |
335 |
6-M16 |
395 |
350 |
6-M20 |
405 |
355 |
6-M24 |
||||
|
300 |
325 |
325 |
420 |
220 |
420 |
±25 |
440 |
395 |
6-M20 |
340 |
400 |
460 |
410 |
- | |
|
350 |
377 |
377 |
490 |
445 |
395 |
460 |
8-M20 |
520 |
470 |
16-M45 |
|||||
|
400 |
426 |
426 |
540 |
495 |
8-M20 |
445 |
515 |
8-M24 |
580 |
525 |
14-M39 |
||||
|
450 |
480 |
480 |
595 |
550 |
505 |
565 |
10-M24 |
640 |
585 |
14-M36 |
|||||
|
500 |
530 |
530 |
440 |
240 |
440 |
645 |
600 |
10-M20 |
565 |
620 |
- |
715 |
650 |
12-M36 |
|
|
600 |
630 |
630 |
755 |
705 |
10-M24 |
615 |
725 |
10-M27 |
840 |
770 |
12-M33 |
||||
|
700 |
720 |
720 |
860 |
810 |
12-M24 |
670 |
840 |
12-M27 |
910 |
840 |
10-M33 |
||||
|
800 |
820 |
820 |
600 |
350 |
600 |
±30 |
975 |
920 |
12-M27 |
780 |
950 |
12-M30 |
1025 |
950 |
10-M30 |
|
900 |
920 |
920 |
1075 |
1020 |
895 |
1050 |
14-M30 |
1125 |
1050 |
10-M27 |
|||||
|
1000 |
1020 |
1020 |
620 |
1175 |
1120 |
14-M27 |
1115 |
1160 |
14-M33 |
1255 |
1170 |
8-M27 |
|||
|
1200 |
1220 |
1220 |
370 |
650 |
1405 |
1340 |
16-M30 |
1230 |
1380 |
16-M36 |
1485 |
1390 |
8-M24 |
||
|
1400 |
1420 |
1424 |
630 |
1630 |
1560 |
18-M33 |
1675 |
1590 |
18-M39 |
1685 |
1590 |
18-M45 |
|||
|
1600 |
1620 |
1624 |
380 |
670 |
1830 |
1760 |
20-M33 |
1915 |
1820 |
20-M45 |
1930 |
1820 |
20-M52 |
||
|
1800 |
1820 |
1824 |
2045 |
1970 |
22-M36 |
2115 |
2020 |
22-M45 |
2130 |
2020 |
22-M52 |
||||
|
2000 |
2020 |
2026 |
650 |
400 |
700 |
2265 |
2180 |
24-M39 |
2325 |
2230 |
24-M45 |
2345 |
2230 |
22-M56 |
|
|
2200 |
2220 |
2226 |
730 |
2478 |
2390 |
26-M39 |
2550 |
2440 |
26-M52 |
- |
- |
- |
|||
|
2400 |
2420 |
2426 |
2685 |
3600 |
28-M39 |
2760 |
2650 |
28-M52 |
- |
- |
- |
||||
|
2600 |
2620 |
2626 |
750 |
450 |
840 |
±40 |
2905 |
2810 |
30-M35 |
2960 |
2850 |
30-M52 |
- |
- |
- |
|
2800 |
2820 |
2826 |
3115 |
3020 |
32-M45 |
3180 |
3070 |
32-M52 |
- |
- |
- |
||||
|
3000 |
3020 |
3026 |
3315 |
3220 |
34-M45 |
3290 |
3290 |
34-M56 |
- |
- |
- |
||||
|
3200 |
3220 |
3230 |
3525 |
3430 |
36-M45 |
- |
- |
- |
- |
- |
- |
||||
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