| by Admin
IM FRP manhole covers are available in standard sizes with a load-bearing capacity ranges from 2.5 to 60 tons .they came in circular, and rectangular shape available with a double seal arrangement.
IM FRP/GRP
Manhole covers offer in standard granite finish and are also available in any
other colour specified by the client. IM covers self pigmented and UV
stabilized. Dew to poor heat transfer Due to poor heat transfer properties of
FRP, FRP Covers do not absorb heat and remains at normal temperature under
sunlight. Hence, it is convenient to handle FRP Manhole Covers under extremely
hot conditions.
Comparison
– FRP/GRP manhole covers v/s metal swaged covers
|
|
GRP/FRP manhole covers |
Metal /concrete covers |
|
Corrosion |
Corrosion-resistant, no effect of sea/ sewage
water. |
Get corrode by sewage & seawater. |
|
Colour |
Self pigmented, no painting required |
Painting required at regular intervals. |
|
Strength (or) load-bearing |
High strength to weight ratio |
Low strength to weight ratio |
|
Weight |
Lightweight – easy to handle |
Heavy –need to manpower |
|
Life |
Long life (20-30 years) |
Short life (2-3 years) |
|
Resistance |
Excellent |
Poor |
|
Aesthetics |
High aesthetic
valve , available in granite finish or desired colour |
Standard appearance |
|
Degradation |
No environmental |
High environmental |
Features
:
1. All cover is available with a double seal.
2. All covers can be provided with key locking (or) bolt locking
arrangement.
3. Non-Brittle and Self pigmented/non painted.
4. All lifting keyhole are high
strength plastic alloy/ stainless steel, socket type to avoid wear and teat in lifting area.
5. All keyholes have closed bottom (not thru & thru)
6. permanent set in zero in all sizes & load Bearing.
7. If required the covers are made available with bolt locking
arrangement.