Composite Resin Color Manhole Covers
Manhole cover and gratings: EN124; ISO9001
Surface Box: BS 5834 Part 2:2011; ISO9001
Drainage channels: EN1433; ISO9001
Grooved coupling and fittings: UL/FM/CE; ISO9001
Manhole covers are divided into the following classes:
A15, B125, C250, D400, E600, and F900.
A15 Areas which can only be used by pedestrians and pedal cyclists
B125 Footways, pedestrian areas and comparable areas, car parks or car parking decks
C250 For gully tops installed in the area of kerbside channels of roads which when measured from the kerb edge, extend a maximum of 0.5m into the carriageway and a maximum of 0.2m into the footway
D400 Carriageways of roads(including pedestrian streets), hard shoulders and parking areas, for all types of road vehicles
E600 Areas imposing high wheel loads, e.g. docks, aircraft pavements
F900 Areas imposing particularly high wheel loads, e.g. aircraft pavements
Composite Manhole Covers Advantages:
1. Nice appearance
Composite resin color covers are present in the material inside is not a simple diagram on the surface, the color persistence.
2. High strength
Its strength is ten times as rigid PVC, much higher than the absolute strength of aluminum to achieve the level of ordinary steel.
It stainless, no mold, no rot, no paint, the ability of many gas, corrosive liquid medium.
4. Fatigue resistance
Composite covers have some flexibility, which makes the people who work in the above long-term comfort, as a work platform, reducing the staff of the legs and back tension, increase the comfort of working to improve efficiency, human engineering scientists have been recommended.
5. The overall economic good
With more than ordinary carbon steel, composite material covers integrated, low cost, although its one-time investment than ordinary carbon steel, because of its long life, and can be used two decades, and no maintenance, thus the overall economic efficiency is much better than using carbon steel.
6. Easy installation
The covers makes use of composite materials greatly reduce the weight of components, thus reducing the weight of the support structure, installation does not require use of lifting equipment, which saves and convenient.
7. Safety and security
Covers the installation and use of composite materials, the process will not crash and have a spark, especially for use in explosive environments, in addition, the covers with non-slip surface to prevent sliding down to reduce accidents.
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