Rubber Bellows
Double Sphere
Rubber Bellows “Double Sphere” type:
An economical range of smaller sized, Moulded Rubber Bellows having a double sphere design. Designed to compensate for misalignment, neutralise movement and reduce noise and vibration in pipelines. They effectively dampen the transmission of sound and vibration from plant items in building service installations.
They are available from 20mm to 50mm n.b., and come complete with galvanised female union BSP end connections.
Movement Data (Standard EPDM Construction)
| Nominal Bore | Standard Length | Working Pressure | Axial Compression | Movements Elongation | Lateral(+/-) | Angular(+/-) |
| (mm) | (mm) | (Bar) | (mm) | (mm) | (mm) | (Deg) |
| 20 | 203 | ** | 30 | 20 | 30 | 30 |
| 25 | 203 | ** | 30 | 20 | 30 | 30 |
| 32 | 203 | ** | 30 | 20 | 30 | 30 |
| 40 | 203 | ** | 30 | 20 | 30 | 30 |
| 50 | 203 | ** | 30 | 20 | 30 | 30 |
**Working Pressure:
At 50°C. 10 Bar
At 70°C. 8 Bar
At 90°C. 5 Bar
Maximum Working Temperature: +90°C.