Rubber Pipe Expansion Joints
Rubber pipe expansion joints are often used to compensate for minor misalignment and offset. The design is chemical and abrasion resistant accommodates for higher pressures than the standard metal expansion joints and eliminates sediment buildup. They have an integrally flanged design where no gaskets are required and are designed to absorb noise, vibration, and shock. This single, wide arch, spool-type rubber expansion joint is provided with hot-dipped galvanized retaining rings.
Rubber Expansion joint Table
Nominal Pipe Size Expansion Joint | Nominal Face-to-face Minimum Length | MOVEMENTS | SPRING RATES | ||||||||||||||||
AXIAL COMPRESSION | AXIAL EXTENSION | LATERAL DEFLECTION DEGREES OF ANGULAR MOVEMENT | DEGREES OF ANGULAR MOVEMENT | DEGREES OF TORSIONAL MOVEMENT | AXIAL COMPRESSION | AXIAL EXTENSION | LATERAL DEFLECTION | ANGULAR MOVEMENT | |||||||||||
in | mm | in | mm | in | mm | in | mm | in | mm | lbs/in | N/mm | lbs/in | N/mm | lbs/in | N/mm | ft-lbs/ deg | Nm/deg | ||
1* | 25 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 34.4 | 3 | 176 | 31 | 228 | 39 | 262 | 46 | 0.03 | 0.04 |
1-1/4* | 32 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 28.1 | 3 | 220 | 38 | 287 | 50 | 328 | 57 | 0.075 | 0.1 |
1-1/2 | 40 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 23.1 | 3 | 265 | 46 | 344 | 60 | 393 | 69 | 0.11 | 0.15 |
2 | 50 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 18.1 | 3 | 317 | 55 | 414 | 72 | 525 | 92 | 0.22 | 0.3 |
2-1/2 | 65 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 14.4 | 3 | 397 | 69 | 517 | 90 | 571 | 100 | 0.375 | 0.51 |
3 | 75 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 12.5 | 3 | 476 | 83 | 621 | 109 | 618 | 108 | 0.6 | 0.81 |
3-1/2 | 88 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 10.4 | 3 | 556 | 97 | 724 | 127 | 666 | 117 | 0.975 | 1.32 |
4 | 100 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 9.4 | 3 | 636 | 111 | 828 | 145 | 714 | 125 | 1.425 | 1.93 |
5 | 125 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 7.5 | 3 | 793 | 139 | 1032 | 181 | 819 | 143 | 3 | 4 |
6 | 150 | 6 | 150 | 7/16 | 19 | 7/16 | 11 | 5/8 | 16 | 6.2 | 3 | 953 | 167 | 1239 | 217 | 925 | 162 | 5 | 7 |
8 | 200 | 6 | 150 | 1-3/16 | 30 | 11/16 | 17 | 5/8 | 16 | 6.9 | 3 | 1059 | 185 | 1378 | 241 | 1129 | 198 | 10 | 13 |
10 | 250 | 8 | 200 | 1-3/16 | 30 | 11/16 | 17 | 3/4 | 19 | 5.6 | 3 | 1324 | 232 | 1722 | 302 | 1213 | 212 | 18 | 24 |
12 | 300 | 8 | 200 | 1-3/16 | 30 | 11/16 | 17 | 3/4 | 19 | 4.7 | 3 | 1588 | 278 | 2066 | 362 | 1422 | 249 | 32 | 43 |
14 | 350 | 8 | 200 | 1-3/16 | 30 | 11/16 | 17 | 3/4 | 19 | 4.1 | 2 | 1390 | 243 | 1808 | 317 | 1675 | 293 | 14 | 19 |
16 | 400 | 8 | 200 | 1-3/16 | 30 | 11/16 | 17 | 3/4 | 19 | 3.4 | 2 | 1588 | 278 | 2066 | 362 | 1929 | 338 | 57 | 77 |
18 | 450 | 8 | 200 | 1-3/16 | 30 | 11/16 | 17 | 3/4 | 19 | 3.1 | 1 | 1786 | 313 | 2326 | 407 | 2130 | 373 | 80 | 108 |
20 | 500 | 8 | 200 | 1-7/16 | 37 | 3/4 | 19 | 3/4 | 19 | 3.1 | 1 | 1987 | 348 | 2580 | 452 | 2382 | 417 | 114 | 155 |
22 | 550 | 10 | 250 | 1-7/16 | 37 | 3/4 | 19 | 3/4 | 19 | 2.8 | 1 | 2185 | 383 | 2839 | 497 | 2472 | 433 | 154 | 209 |
24 | 600 | 10 | 250 | 1-7/16 | 37 | 3/4 | 19 | 3/4 | 19 | 2.5 | 1 | 2383 | 417 | 3097 | 542 | 2559 | 448 | 205 | 278 |
26 | 650 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 2.9 | 1 | 2295 | 402 | 2985 | 523 | 2743 | 480 | 219 | 297 |
28 | 700 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 2.5 | 1 | 2472 | 433 | 3214 | 563 | 2928 | 513 | 286 | 388 |
30 | 750 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 2.5 | 1 | 2649 | 464 | 3445 | 603 | 3112 | 545 | 328 | 445 |
32 | 800 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 2.2 | 1 | 2827 | 495 | 3674 | 643 | 3657 | 640 | 416 | 564 |
34 | 850 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 2.2 | 1 | 3001 | 525 | 4201 | 736 | 4201 | 736 | 484 | 656 |
36 | 900 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 1.9 | 1 | 3178 | 556 | 4134 | 724 | 4746 | 831 | 633 | 926 |
38 | 950 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 1.9 | 1 | 3356 | 588 | 4363 | 764 | 4876 | 854 | 707 | 959 |
40 | 1000 | 10 | 250 | 1-5/8 | 41 | 1 | 25 | 3/4 | 19 | 1.9 | 1 | 3531 | 618 | 4593 | 804 | 5007 | 877 | 781 | 1059 |
42 | 1050 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.9 | 1 | 3339 | 585 | 4337 | 759 | 5134 | 899 | 872 | 1182 |
44 | 1100 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.9 | 1 | 3498 | 613 | 4543 | 796 | 5356 | 938 | 952 | 1291 |
46 | 1150 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.6 | 1 | 3652 | 640 | 4754 | 832 | 5577 | 977 | 1260 | 1708 |
48 | 1200 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.6 | 1 | 3815 | 668 | 4956 | 868 | 5799 | 1016 | 1369 | 1856 |
50 | 1250 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.6 | 1 | 3975 | 696 | 5163 | 904 | 6018 | 1054 | 1476 | 2001 |
52 | 1300 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.6 | 1 | 4134 | 724 | 5374 | 941 | 6235 | 1092 | 1603 | 2173 |
54 | 1350 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.6 | 1 | 4293 | 752 | 5576 | 976 | 6454 | 1130 | 1731 | 2347 |
56 | 1400 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.6 | 1 | 4452 | 780 | 5787 | 1013 | 6672 | 1168 | 1848 | 2505 |
58 | 1450 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.2 | 1 | 4611 | 807 | 5994 | 1050 | 6888 | 1206 | 2482 | 3365 |
60 | 1500 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.2 | 1 | 4770 | 835 | 6201 | 1086 | 7104 | 1244 | 2653 | 3597 |
66 | 1650 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.2 | 1 | 5247 | 919 | 6821 | 1194 | 7662 | 1342 | 3216 | 4360 |
72 | 1800 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.1 | 0.5 | 5724 | 1002 | 7441 | 1303 | 8215 | 1439 | 4261 | 5777 |
78 | 1950 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1.1 | 0.5 | 6201 | 1086 | 8061 | 1412 | 8926 | 1563 | 5266 | 7140 |
84 | 2100 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 1 | 0.5 | 6678 | 1169 | 8681 | 1520 | 9637 | 1688 | 6481 | 8787 |
96 | 2400 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 0.87 | 0.5 | 7632 | 1337 | 9921 | 1737 | 11062 | 1937 | 10081 | 13668 |
102 | 2550 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 0.82 | 0.5 | 8109 | 1420 | 10542 | 1846 | 11775 | 2062 | 12725 | 17253 |
108 | 2700 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 0.77 | 0.5 | 8586 | 1503 | 11162 | 1955 | 12489 | 2187 | 16391 | 22223 |
120 | 3000 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 0.7 | 0.5 | 9540 | 1670 | 12403 | 2172 | 13912 | 2436 | 22403 | 30374 |
132 | 3300 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 0.64 | 0.5 | 10494 | 1838 | 13642 | 2389 | 15216 | 2665 | 25160 | 34112 |
144 | 3600 | 12 | 300 | 1-7/8 | 48 | 1 | 25 | 3/4 | 19 | 0.59 | 0.5 | 11448 | 2005 | 14882 | 2606 | 16519 | 2893 | 32176 | 43625 |
MOVEMENT CAPABILITY
1. Filled Arch reduces movement.
2. The degree of Angular Movement is based on the maximum extension shown.
3. If greater movements are desired, expansion joints can be supplied with two, three, or four
arches. Relatively longer “Face-to-Face” length dimensions are incorporated into designs of
Multiple Arch Type expansion joints.
4. To calculate the approximate movement of Multiple Arch expansion joints, take the movement
shown in the above table and multiply by the number of arches.
5. Movements shown above are based on proper installation practice.
B. SPRING RATE
1. Forces required to move expansion joints are based on zero pressure conditions and room
the temperature in the pipeline.
2. These forces should be considered only as approximates which may vary with the
elastomers and fabrics used in fabrication and the specific construction design of an
individual manufacturer.
3. See Chapter III, Section F for the definition of values shown.
4. To calculate the approximate Spring Rate for Multiple Arch Joints, divide the single arch
values by the number of arches.
C. FORCE POUNDS
1. Is the force required to move an expansion joint its rated movement.
*Items are normally furnished with “Filled Arch” construction.
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