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Mainly used for connections between pipes, valves, and pumps. It can transmit axial thrust, protect pipeline equipment, and facilitate installation, disassembly, and maintenance.
1. Main body flange
2. Movable flange
3. Telescopic sleeve
4. Sealing rubber ring
5. Power transmission screw and fastening bolts
Transmits axial force, protecting pumps, valves, and pipelines from damage
Adjustable installation distance, making pipeline connection easier
Tight sealing and high pressure resistance
Reduces pipeline vibration, stabilizing the network
Durable carbon steel material, resistant to corrosion
When the pipeline experiences tension or pressure due to thermal expansion and contraction, the power transmission screw transmits the pressure along the entire pipeline, preventing it from concentrating on the pump or valve. At the same time, it allows for length adjustment through telescopic action, making installation convenient and ensuring a tight, leak-proof seal.
1. Water supply plants and sewage treatment pipelines
2. Municipal water supply and drainage projects
3. Pump room inlet and outlet pipelines
4. Supporting pipelines in chemical plants and power plants
5. Special for pipeline maintenance and disassembly positions
| serial number | name | quantity | Material |
| 1 | Ontology | 1 | QT400-15、Q235A、ZG230-450、20 |
| 2 | sealing ring | 1 | NBR |
| 3 | Gland | 1 | QT400-15、Q235A、ZG230-450、20 |
| 4 | Limiting short pipe | 1 | Q235A、20、16Mn |
| 5 | studs | n | Q235A、35、1Cr18Ni9Ti |
| 6 | nut | 5n | Q235A、20、1Cr18Ni9Ti |
| Nominal diameter DN | Pipe outer diameter Dw | Overall dimensions | Flange connection size | ||||||||
| 0.6MPa | 1.0MPa | ||||||||||
| L | L1 | D | D1 | n-Th | b | D | D1 | n-Th | b | ||
| 65 | 76 | 200 | 40 | 160 | 130 | 4-M12 | 16 | 185 | 145 | 4-M16 | 20 |
| 80 | 89 | 190 | 150 | 4-M16 | 18 | 200 | 160 | 8-M16 | 22 | ||
| 100 | 114 | 210 | 170 | 220 | 180 | 24 | |||||
| 125 | 140 | 240 | 200 | 8-M16 | 20 | 250 | 210 | 26 | |||
| 150 | 168 | 265 | 225 | 285 | 240 | 8-M20 | |||||
| 200 | 219 | 320 | 280 | 22 | 340 | 295 | |||||
| 250 | 273 | 375 | 335 | 12-M16 | 24 | 395 | 350 | 12-M20 | 28 | ||
| 300 | 325 | 220 | 50 | 440 | 395 | 12-M20 | 445 | 400 | |||
| 350 | 377 | 490 | 445 | 26 | 505 | 460 | 16-M20 | 30 | |||
| 400 | 426 | 540 | 495 | 16-M20 | 28 | 565 | 515 | 16-M24 | 32 | ||
| 450 | 480 | 595 | 550 | 615 | 565 | 20-M24 | 32 | ||||
| 500 | 530 | 240 | 645 | 600 | 20-M20 | 30 | 670 | 620 | 20-M24 | 34 | |
| 600 | 630 | 755 | 705 | 20-M24 | 780 | 725 | 20-M27 | 36 | |||
| 700 | 720 | 860 | 810 | 24-M24 | 32 | 895 | 840 | 24-M27 | 41 | ||
| 800 | 820 | 350 | 60 | 975 | 920 | 24-M27 | 34 | 1015 | 950 | 24-M30 | 44 |
| 900 | 920 | 1075 | 1020 | 36 | 1115 | 1050 | 28-M30 | 46 | |||
| 1000 | 1020 | 1175 | 1120 | 28-M27 | 1230 | 1160 | 28-M33 | 50 | |||
| 1200 | 1220 | 370 | 1405 | 1340 | 32-M30 | 40 | 1455 | 1380 | 32-M36 | 56 | |
| 1400 | 1420 | 1630 | 1560 | 36-M33 | 44 | 1675 | 1590 | 36-M39 | 62 | ||
| 1600 | 1620 | 380 | 1830 | 1760 | 40-M33 | 48 | 1915 | 1820 | 40-M45 | 68 | |
| 1800 | 1820 | 2045 | 1970 | 44-M36 | 50 | 2115 | 2020 | 44-M45 | 70 | ||
| 2000 | 2020 | 400 | 2265 | 2180 | 48-M39 | 54 | 2325 | 2230 | 48-M45 | 74 | |
| 2200 | 2220 | 2475 | 2390 | 52-M39 | 60 | 2550 | 2440 | 52-M52 | 80 | ||
| 2400 | 2420 | 2685 | 2600 | 56-M39 | 62 | 2760 | 2650 | 56-M52 | 82 | ||
| 2600 | 2620 | 450 | 80 | 2905 | 2810 | 60-M45 | 64 | 2960 | 2850 | 60-M52 | 88 |
| 2800 | 2820 | 3115 | 3020 | 64-M45 | 68 | 3180 | 3070 | 64-M52 | 94 | ||
| 3000 | 3020 | 3315 | 3220 | 68-M45 | 70 | 3405 | 3290 | 68-M56 | 100 | ||
| 3200 | 3220 | 3525 | 3430 | 72-M45 | 76 | ||||||
