FRP MANHOLE COVERS
FRP (Fiber Reinforced Plastic) is newly developed material for manhole covers. Before introduction of FRP, manhole covers we traditionally manufactured from concrete, steel reinforced concrete, cast iron, ductile iron materials, but these materials had the drawbacks like low load carrying capacity. FRP has emerged as the best alternate material for manhole covers due to its long lifespan, capacity to withstand high load and easy installation.
FEATURES
Light Weight: Easy to handle during maintenance and cleaning of drains
Excellent wear- corrosion resistant, rust-proof, not affected by sewage, chemicals in water
High Strength
Excellent abrasion resistance
No erosion due to rain water and moving vehicles
No Environmental Degradation
High Load Capacities
Long Service Life (20-30 years)
No Metal Content, so no scrap or resale value, hence no theft
Well sealed: Available with locking arrangement to avoid displacement in case of water back
Customized Size and Structural Designs
SIZES AVAILABLE
| Square (MM) | Rectangular (MM) | Circular (MM Diameter) |
|---|---|---|
| 300 X 300 | 225 X 300 | 450 |
| 450 X 450 | 600 X 450 | 560 |
| 600 X 600 | 600 X 750 | 600 |
| 750 X 750 | 900 X 450 | 750 |
| 900 X 900 | 900 X 600 | 900 |
| 1000 X 1000 | 900 X 750 | |
| 1200 X 1200 | 600 X 1200 | |
| 900 X 1200 |
SPECIFICATIONS
| PARAMETER | RCC | CI | Sanvi Composites FRP Manhole Covers |
|---|---|---|---|
| Life Span | Low | Moderate | High |
| Strength/Weight Ratio | Very Low | Moderate | Very High |
| Cost | Low | Moderate | Comparable to CI |
| Scrap Value | Low | High | Nil (Zero Scrap Value) |
| Colour Range | Concrete Grey | Black | Range Available |
| Finishing | Not Applicable | Rough | Granite Finish |
| Logo Embossing | Not Available | Not Available | Possible |
| Custom Design | Not Available | Not Available | Possible |
| Locking System | None | None | Available (SS-Wire Rope) |
| Handling | Very Difficult | Difficult | Easy |
| Thermal Expansion | Slight | High | Negligible |
| Corrosion Resistance | Low | Medium | High |
| Abrasion Resistance | None | None | Yes |