Dowel joint is also called expansion joint, compensator, expansion joint and expansion joint. It can be divided into C2F double flange force transfer joint, CF type single flange force transmission joint and cc2f detachable force transmission joint. It is composed of body, sealing ring, gland, telescopic short pipe and other main parts. It is a new product that pumps, valves and other equipment are connected with pipelines. They are connected by full bolts to make them become a whole with certain displacement. In this way, the installation and maintenance can be adjusted according to the on-site installation size, and the axial push force can be transmitted back to the whole pipeline when working. This not only improves the work efficiency, but also plays a protective role on the pump, valve and other equipment.
Dowel joint is on the basis of the flange joint loose tube compensation rights set short flange pipe and dowel screw, this type of joint and the loose tube joint compensation and loose tube joint limit compensation of different amount of compensation is that it refers to the adjustment in the process of installation and removal, once all of the nut is tightened, it is rigid connection, can pass axis force, so as to protect the valve, pump and other equipment.
Joint standard: GB/T12465-2002
Design standard: GB/T12465-2007,GB/T12465-2002,GB/T14414-1993
Product name: Double flanged force transfer joint
Nominal diameter: DN65~3200mm
Product pressure: PN1.0mpa - 2.5mpa
Suitable temperature: -10℃ to 80℃
Seal: soft seal
Connection: Flanged connection
Installation: vertical and horizontal installation
DN |
DW |
Size |
Regulation quantity△ |
Flange connection size |
|||||||||||
0.6MPa |
1.0MPa |
||||||||||||||
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 |
_ |
_ |
- |
- |
- |
- |