DN250-800 Dimensions and fiberglass reinforced plastic Material manhole covers
Class A15--- Area which can only be used by pedestrians and cyclists Class
B125---Pavement,pedestrianised ares and similar surfaces,paking areas and multistorey car parks.
Class C250---For covering sevices installed on roadsides and in gutters at the side of streets.
Class D400---Road surfaces(including pedestrianised streets),hard shoulders and parking areas for vehicles of all kinds.
Class E600---Areas used by heavy vehicles,such as surfaces in airport and dock facilities. Class F900---Areas subject to particularty heavy loading,for example surface in airport.
1. Detailed ImagesFRP SMC manhole characteristics
(1)High intensity:
The manhole cover is made by polymer composite material with steel skeleton, and is moulded under high temperature and pressure. It can hold a ultimate 54 tons according to the test result, which meets and even exceeds the latest criterions in CJ/T211-2005,promulgated by the Ministry of Construction of the People's Republic of China.
(2)Elegant appearance:
The patterns of the manhole cover are well designed with various colors,which can beautify the environment of the city.
(3)Lighter in weight:
It only weighs one third of the cast iron manhole cover that it's easier for transportation, installation and emergency repair, Besides, It also lightens labour intensity immensely.
(4)Good anti-theft:
It is made by polymer composite material with no no recycling value that prevent being stolen.It is set with lock structure which can secure the belongings under it. Thus it keeps away these accidents which were caused by the missing of manhole cover.
(5)High durability:
It is made by polymer material which has a larger molecular and better stability, and works under the temperature between 50ºCbelow zero and 150ºCabove zero with the Scientific formulation advanced skills and Technical equipment.
(6)High precision:
The cover can fit together with the frame perfectly, as it is Moulded under high temperature and pressure. It overcomes the problems of "moving, spring and nosy", which exist in covers made by cast iron and cement. So it is improves traffic capacity and comforts when drying.
(7)Corrosion-resistance:
According to the test of the National Research & Analysis the Center of Chemical Building Materials, the products is corrosion-resistant and has a 3 level capability of ageing resistance. Thus it has a longer service
2. Specification
FRP SMC manhole sizes
| Round | Rectangular | Square |
| 300 mm | 300 mm x 270 mm | 300 mm x 300 mm |
| 400 mm | 600 mm x 450 mm | 400 mm x 400 mm |
| 500mm | 700 mm x 500 mm | 450 mm x 450 mm |
| 600mm | 800 mm x 450 mm | 500 mm x 500 mm |
| 690 mm | 900 mm x 450 mm | 600 mm x 600 mm |
| 900 mm | 900 mm x 600 mm | 675 mm x 675 mm |
| 1000 mm | 990 mm x 1220 mm | 750 mm x 750 mm |
| 1100 mm | 950mm x 750mm & 600mm x 750mm | 800 mm x 800 mm |
| (2 covers with single frame) | ||
| 675 mm x 2210 mm | 900 x 900mm | |
| (3 covers with single frame) | ||
| 675 mm x 1440 mm | 900 mm x 900 mm | |
| (2 covers with single frame) | (2 covers with single frame) | |
| 800 mm x 1600 mm | 1000mm x 1000mm | |
| (2 covers with single frame) | ||
| 1200mm x 1200mm | ||
| 1500mm x 1500mm |
3. Installation
Note: The base of the manhole cover is aligned with both sides of the wall
4. Application
SMC manhole cover application
(1) Municipal construction; communications; electric power supply; water supply; drainage; plaza; school and the web establishment;
(2) Residence district; roadway; park; pedal cyclist; footway.
Trial order is acceptable. Sample is available.
Welcome to inquire, we will feedback within 24 hours.
