Rubber Expansion Joints
The rubber expansion joints are commonly used in piping systems to reduce vibration, noise, and heat induced expansion/contraction. It is a combination of bellows (a vulcanized rubber component made of an inner rubber layer, outer rubber layer, yarn reinforced layer, and steel wires) and adapters (flange or thread).
Advantages
1. With its great elasticity, our pipe joint is able to withstand high pressure, reduce noise, absorb oscillation, and compensate pipe misalignment and thermal elongation. It is easy to install, has a great resistance to corrosion, and has a long service life.
2. This flexible expansion joint's body is clean, smooth and free of cracks, enabling it to deliver a reliable performance.
3. Our rubber expansion joints are designed with different structures, and can be customized in appearance and size according to customer needs.
Application
The universal expansion joint fits for a wide range of applications, including but not limited to:
1. Water supply and drainage
2. Water circulating
3. HVAC
4. Fire prevention
5. Papermaking
6. Pharmaceutical
7. Petrochemical engineering
8. Shipbuilding
9. Pump, compressor, draught fan, etc.
| DN | Length | Bolt No. | Bolt diameter ( D1d0) | Bolt diameter (D1) | Axial displacement | Lateral displacement | a1 a2 | ||
| MM | IN | Expansion | Contraction | ||||||
| 32 | 11/4 | 95 | 4 | 17.5 | 100 | 6 | 9 | 9 | 15° |
| 40 | 11/2 | 95 | 4 | 17.5 | 110 | 6 | 10 | 9 | 15° |
| 50 | 2 | 105 | 4 | 17.5 | 125 | 7 | 10 | 10 | 15° |
| 65 | 21/2 | 115 | 4 | 17.5 | 145 | 7 | 13 | 11 | 15° |
| 80 | 3 | 135 130 | 8 | 17.5 | 160 | 8 | 15 | 12 | 15° |
| 100 | 4 | 150 135 | 8 | 17.5 | 180 | 10 | 19 | 13 | 15° |
| 125 | 5 | 165 160 | 8 | 22 | 210 | 12 | 19 | 14 | 15° |
| 150 | 6 | 180 185 | 8 | 22 | 240 | 12 | 20 | 22 | 15° |
| 200 | 8 | 190 200 | 8 | 22 | 295 | 16 | 25 | 22 | 15° |
| 250 | 10 | 230 240 | 12 | 22 | 350 | 16 | 25 | 22 | 15° |
| 300 | 12 | 245 260 | 12 | 22 | 400 | 16 | 25 | 22 | 15° |
| 350 | 14 | 265 | 16 | 26 | 460 | 16 | 25 | 22 | 15° |
| 400 | 16 | 265 | 16 | 26 | 515 | 16 | 25 | 22 | 15° |
| 450 | 18 | 265 | 20 | 26 | 565 | 16 | 25 | 22 | 15° |
| 500 | 20 | 265 | 20 | 30 | 620 | 16 | 25 | 22 | 15° |
| 600 | 24 | 265 | 20 | 26 | 725 | 16 | 25 | 22 | 15° |
| 700 | 28 | 260 | 24 | 30 | 810 | 16 | 25 | 22 | 10° |
| 800 | 32 | 260 | 24 | 30 | 920 | 16 | 25 | 22 | 10° |
| 900 | 36 | 260 | 24 | 30 | 1020 | 16 | 25 | 22 | 10° |
| 1000 | 40 | 260 | 28 | 30 | 1120 | 16 | 25 | 22 | |
