Overview |
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Rubber expansion joints are also called flexible joint, rubber compensator or vibration absorber. Due to the flexibility of rubber, beside metal expansion joints, rubber expansion joints are always introduced to the piping system to solve some certain problems.
Rubber expansion joints Twin Arch Type 1021 are also called double sphere rubber joint. They are made to supplement 1020 series, the difference with series 1020 is they have integral rubber flanges in accordance with PN10, supply range is from 700mm to 1000mm.
Features and Benefit |
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Absorb vibration
Make up piping misalignment
Offset thermal movement
Release piping stress
Cost-effective
Less weight
Easy installation
Suitable for high pressure application
Supply Range |
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Size: 700mm to 1000mm
Temperature: -40℃ to 120℃
Fluid: Water, Swage, Acid, Alkali, Oil, etc.
Pressure Rating: PN10
Part & Options |
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| Item | Part | Available Material | Quantity |
| 1 | Bellows | EPDM/NR/NBR/Neoprene/Hypalon | 1 |
| 2 | Flange | St37.2/A105/SS304/SS316 | 2 |
| 3 | Carcass | Synthetic Fabric | 1 |
Data Sheet |
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| Size | L | Pressure | Vacuum | Flange Pattern | Movements | |||
| mm | mm | bar | mbar | Comp.(mm) | Ext.(mm) | Lateral(mm) | Angular(°) | |
| 700 | 400 | 6 | 150 | PN10 | 50 | 30 | 35 | 50 |
| 800 | 400 | 6 | 150 | PN10 | 50 | 30 | 35 | 50 |
| 900 | 400 | 6 | 150 | PN10 | 50 | 30 | 35 | 50 |
| 1000 | 400 | 6 | 150 | PN10 | 50 | 30 | 35 | 50 |
PS: |
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Other sizes are available, please contact UNICK for more information.
Pressure rating is for rubberbellows on base of 31 ℃, when higher temperature the pressure rating will reduce.
Movements in above table arenon-concurrent.
Test pressure is 1.5 times thepressure rating. UNICK rubber expansion joints could take 3 times design pressure for safety.
