Rubber (Fabric) Ducting Joints (Non-metallic Compensator)
• It is reasonably structured with good flexibility and large range of expansion and contraction of compensating pipe, which has a small counterforce on the pipe support.
• With vibration absorption and noise reduction, heat and dust insulation, it is friendly to the environment and helpful for simplifying the support structure.
• It can deflect displacement and prevent the damage cause by the sinking of connected supporting frame or equipment foundation. It can also adopt the eccentricity error of the pipe installation and is convenient for installation and maintenance.
• It is wear-resisting, heat-resisting. ageing-resisting and corrosion- resisting and has long service life.
• Being small in resistance, light in weight and non-fouling, all its properties are superior to those of compensating gears of other materials.
• Large medium temperature-resisting range: -40~300°C
FB-U type structure chart
FB-V type structure chart
| No. | Name | Material | Quantity |
| 1 | Flange | Q235 flat steel and angle steel | 2 pieces |
| 2 | Internal and external rubber layer | Natural rubber and synfinesized rubber | 1 pieces |
| 3 | Reinlarced layer | Rubbering fibre fabric | 2-4 layers |
| 4 | Sleeve | Q235, A3 | 1 set |
1. Rubber physical and mechanical properties
| Item | Index |
| Rigidity | 65±5 |
| Intensity | ≥15MPa |
| Compensation length | ≥230% |
| Permanet variation | ≤25% |
| Aging in heated air | 70℃×72h |
| Vanation rate of pull | ≤15% |
2. Technical performance of products
| Compensation performance | U type | V type |
| Compensation length | ±90mm | ±100mm |
| Working pressure | ≤9806Pa | ≤9806Pa |
| Temperature range | -40℃~+300℃ | -40℃~+300℃ |
| Installation length | 300-450mm | 300-450mm |
| Variation rate of pull | ≤15% | ≤15% |
| Distance between fixed brackets at both ends | ≤50m | |
| Distance between flexible brackets at both ends | 2-4m |
