Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
JINGNING Specialized In Rubber Expansion Joints
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| Nominal diameter | Length | Diameter of the centralring of the bolt(mm) | Hole diameter quantitvd | Axial displacement | Horizontal displacemente (mm) | Defiexion angle(a+a) | ||
| mm | inch | Extension (mm) | Compression (mm) | |||||
| 40 | 1½ | 165 | 110 | 18-4 | 30 | 50 | 45 | 35 |
| 50 | 2 | 165 | 125 | 18-4 | 30 | 50 | 45 | 35 |
| 65 | 2½ | 175 | 145 | 18-4 | 30 | 50 | 45 | 35 |
| 80 | 3 | 175 | 160 | 18-8 | 35 | 50 | 45 | 35 |
| 100 | 4 | 225 | 180 | 18-8 | 35 | 50 | 40 | 35 |
| 125 | 5 | 225 | 210 | 18-8 | 35 | 50 | 40 | 35 |
| 150 | 6 | 225 | 240 | 22-8 | 35 | 50 | 40 | 35 |
| 200 | 8 | 325 | 295 | 22-8 | 35 | 50 | 40 | 35 |
| 250 | 10 | 325 | 350 | 22-12 | 35 | 60 | 35 | 30 |
| 300 | 12 | 325 | 400 | 22-12 | 35 | 60 | 35 | 30 |
| 350 | 14 | 330 | 460 | 22-16 | 35 | 60 | 35 | 30 |
| 400 | 16 | 330 | 515 | 26-16 | 35 | 60 | 35 | 30 |
| 450 | 18 | 330 | 565 | 26-20 | 35 | 60 | 35 | 30 |
| 500 | 20 | 350 | 620 | 26-20 | 35 | 60 | 35 | 30 |
| 600 | 24 | 350 | 725 | 30-20 | 35 | 60 | 35 | 30 |
| 700 | 28 | 350 | 840 | 30-24 | 35 | 60 | 35 | 30 |
| 800 | 32 | 400 | 950 | 30-24 | 35 | 60 | 35 | 30 |
Note :Special requirements can customize the letter map rubber joints make use of the advantages of high elasticity, high gas, medium resistance, weather resistance and radiation resistance of rubber, which can reduce vibration and noise of pipes, and compensate for thermal expansion and cold shrinkage caused by temperature changes.
