Pipeline Rings
Rubber pipeline rings provide sealing and cushioning in duct pipes, joints, and manholes. They absorb expansion, reduce vibration, and prevent leakage in drainage and sewer systems. Bright Star offers rings in EPDM, NBR, and Neoprene for civil, industrial, and infrastructure applications
Polymers:
BRIGHT STAR has successfully developed formulations and rubber components based on the following polymers and has been supplying to diverse industries over
the past few decades.
- FFKM/ Perfluoroelastomer
- FKM / Viton ®
- TFE/P/Aflas ®
- Silicone, Flurosilicone
- Nitrile (NBR), Carboxylated
- NBR (XNBR) / PVC Nitrile
- SBR
- EPDM, EPR
- Chloroprene / Neoprene®
- Natural / PLC / Polyisoprene
- Polyurethane
| MATERIAL | HARDNESS RANGE (SHORE A) | HIGH TEMP °C | LOW TEMP °C | STEAM |
| FFKM | 70-90 | 300 | -10 | E |
| FKM (VITON) | 50-90 | 230 | -20 | F-G |
| AFLAS | 60-90 | 200 | -10 | E |
| NBR | 20-95 | 100 | -30 | F-G |
| HNBR | 50-95 | 150 | -40 | G |
| SBR | 40-90 | 100 | -40 | P |
| EPDM | 40-90 | 150 | -40 | E |
| SILICONE | 20-80 | 200 | -60 | F-G |
| NR | 30-90 | 70 | -50 | P |
| CR | 40-90 | 100 | -40 | F |
Rating
- E = Excellent – Suitable for prolonged exposure to saturated steam at high temperatures
- G = Good – Suitable for moderate steam exposure with some limitations
- F = Fair – Can handle light or intermittent steam but not continuous service
- P = Poor – Degrades quickly in steam; not recommended
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