Technical Specifications for Double-Ball Compensation Joints
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Technical Specifications for Double-Ball Compensation Joints
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Product Description
Technical Specifications for Double-Ball Compensation Joints
Product Introduction
The double-bell expansion joint is composed of two spherical expansion joints (single bell) that can be adjusted at arbitrary angles, along with an axial expansion sleeve equipped with a limiting device. While capable of compensating for large angular displacements, it also provides axial displacement compensation, thereby mitigating the damage to piping systems caused by uneven settlement resulting from complex ground conditions and effectively extending the service life of the piping system. It features large compensation capacity, a compact footprint, low fluid resistance, easy installation, and low overall cost. It is suitable for applications in water supply and drainage systems, industrial water supply, agricultural irrigation, electrical and telecommunications infrastructure, oil pipelines, and various industrial piping systems.
Construction and Materials
| Name Name |
Quantity Quantity |
Materials Material |
|
|
| 1 | Spherical shell Spherical shell |
1 | Carbon steel (Q235A) or ductile iron (QT400-15) |
|
| 2 | Seal/Filler Sealingring/Filler |
1 | Natural Rubber (NR) Nitrile rubber (NBR) or chloroprene rubber (CR) |
|
| 3 | Press Cover Follower | 1 | Carbon steel (Q235A) or ductile iron (QT400-15) |
|
| 4 | Stud | n | Carbon steel (Q235A) or stainless steel | |
| 5 | Nut | n | Carbon steel (Q235A) or stainless steel | |
| 6 | Sphere | 1 | Carbon steel (Q235A) or ductile iron (QT400-15) |
Basic Dimensions of Double-Ball Compensation Joints
| Nominal Conductance DN |
Press cap Outer diameter D0 |
Length L | Flange Connection Size | |||||||||
| 0.6MPa | 1.0MPa | 1.6MPa | ||||||||||
| Deviation amount 100mm |
Deviation amount 200mm |
D | K | n-d0 | D | K | n-do | D | K | n-do | ||
| 100 | 282 | 800 | 1020 | 210 | 170 | 4*M16 | 220 | 180 | 8*M16 | 220 | 180 | 8*M16 |
| 150 | 346 | 830 | 1060 | 265 | 225 | 8*M16 | 285 | 240 | 8*M20 | 285 | 240 | 8*M20 |
| 200 | 410 | 930 | 1150 | 320 | 280 | 8*M16 | 340 | 295 | 8*M20 | 340 | 295 | 12*M20 |
| 250 | 464 | 980 | 1190 | 375 | 335 | 12*M16 | 395 | 350 | 12*M20 | 405 | 355 | 12*M24 |
| 300 | 535 | 1080 | 1330 | 440 | 395 | 12*M16 | 445 | 400 | 12*M20 | 460 | 410 | 12*M24 |
| 350 | 607 | 1210 | 1410 | 490 | 445 | 12*M16 | 505 | 460 | 16*M20 | 520 | 470 | 16*M24 |
| 400 | 668 | 1400 | 1650 | 540 | 495 | 16*M20 | 565 | 515 | 16*M22 | 580 | 525 | 16*M27 |
| 450 | 728 | 1430 | 1700 | 595 | 550 | 16*M20 | 615 | 565 | 20*M22 | 640 | 585 | 20*M27 |
| 500 | 798 | 1600 | 1860 | 645 | 600 | 20*M20 | 670 | 620 | 20*M22 | 715 | 650 | 20*M30 |
| 600 | 918 | 1670 | 1930 | 755 | 705 | 20*M24 | 780 | 725 | 20*M27 | 840 | 770 | 20*M33 |
| 700 | 1056 | 1820 | 2080 | 860 | 810 | 24*M24 | 895 | 840 | 24*M27 | 910 | 840 | 24*M33 |
| 800 | 1160 | 2090 | 2350 | 975 | 920 | 24*M27 | 1015 | 950 | 24*M30 | 1025 | 950 | 24*M36 |
| 900 | 1310 | 2140 | 2400 | 1075 | 1020 | 24*M27 | 1115 | 1050 | 28*M30 | 1125 | 1050 | 28*M36 |
| 1000 | 1443 | 2250 | 2510 | 1175 | 1120 | 28*M27 | 1230 | 1160 | 28*M33 | 1255 | 1170 | 28*M39 |
| 1200 | 1693 | 2550 | 2810 | 1405 | 1340 | 32*M30 | 1455 | 1380 | 32*M36 | 1485 | 1390 | 32*M45 |
| 1400 | 1942 | 2900 | 3550 | 1630 | 1560 | 36*M33 | 1675 | 1590 | 36*M39 | 1685 | 1590 | 36*M45 |
| 1600 | 2164 | 3100 | 3750 | 1830 | 1760 | 40*M33 | 1915 | 1820 | 40*M45 | 1930 | 1820 | 40*M52 |
| 1800 | 2400 | 3500 | 4150 | 2045 | 1970 | 44*M36 | 2115 | 2020 | 44*M45 | 2130 | 2020 | 44*M52 |
| 2000 | 2730 | 4060 | 4460 | 2265 | 2180 | 48*M39 | 2325 | 2230 | 48*M45 | 2345 | 2230 | 48*M56 |
| 2200 | 2910 | 4250 | 4650 | 2475 | 2390 | 52*M39 | 2550 | 2440 | 52*M52 | One | - | One |
| 2400 | 3135 | 4500 | 4900 | 2685 | 2600 | 56*M39 | 2760 | 2650 | 56*M52 | One | - | One |
Operating Conditions for Dual-Ball Compensation Joints
Operating Conditions for Dual-Ball Compensation Joints
Related Products
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