Ductile Iron Manhole Cover Round Cover is a type of manhole cover that is made of ductile iron. This type of cover is generally used for covering manholes in roads, sidewalks, and other public areas. The round cover is designed to fit over the circular opening of a manhole, providing a secure and durable cover that can withstand heavy traffic and other environmental factors. Ductile iron is a type of iron that has been treated with magnesium to make it more ductile and flexible. This makes it an ideal material for manhole covers, as it can withstand heavy loads without cracking or breaking. In addition, ductile iron is resistant to corrosion, making it a long-lasting and cost-effective choice for manhole covers. The round shape of the cover is designed to fit snugly over the circular opening of a manhole, providing a secure and stable cover that can withstand heavy traffic and other environmental factors. The cover is typically held in place by a series of bolts or other fasteners, ensuring that it remains in place even under the most demanding conditions. Overall, the Ductile Iron Manhole Cover Round Cover is a durable, reliable, and cost-effective solution for covering manholes in public areas. Whether you are looking to cover a manhole in a busy street or a quiet residential area, this type of cover is sure to provide the protection and security you need.
Class D400 specifications |
Type | Dimensions (mm) | H | e |
| A X A | O X O | C X C | | |
Single Sealed, Square | 600X600 | 500X500 | 532X532 | 100 | 50 |
Single Sealed, Square | 700X700 | 600X600 | 633X633 | 100 | 50 |
Single Sealed, Square | 800X800 | 700X700 | 733X733 | 100 | 50 |
Single Sealed, Square | 900X900 | 800X800 | 833X833 | 100 | 50 |
Single Sealed, Square | 1000X1000 | 900X900 | 933X933 | 100 | 50 |
Single Sealed, Square | 1100X1100 | 1000X1000 | 1033X1033 | 100 | 50 |
Single Sealed, Square | 1200X1200 | 1100X1000 | 1133X1133 | 100 | 51 |
Single Sealed, Rectangular | 600X800 | 500X700 | 558X762 | 80 | 72 |
Single Sealed, Rectangular | 750X550 | 600X450 | 636X486 | 75 | 69 |
Single Sealed, Round cover, Round Base | Ф850 | Ф600 | Ф646 | 95 | 49 |
Single Sealed, Round cover, Rectangular Base | 850X850 | Ф600 | Ф645 | 100 | 49 |
Single Sealed, Round cover, Rectangular Base | 700X700 | Ф600 | Ф645 | 100 | 49 |
Single Sealed, Round cover, Rectangular Base | 900X900 | Ф710 | Ф734 | 102 | 41 |
Single Sealed, Round cover, Rectangular Base | 1000X1000 | Ф710 | Ф734 | 102 | 41 |
Single Sealed, Round cover, Rectangular Base | 1050X1050 | Ф850 | Ф835 | 100 | 46 |
Single Sealed, Round cover, Round Base | Ø750 | Ø600 | Ø660 | 100 | 29 |
Single Sealed, Round cover, Round Base | Ø780 | Ø600 | Ø660 | 100 | 29 |
Double Sealed, Square, Recessed Cover | 750X750 | 600X600 | 694X694 | 100 | 29 |
Double Sealed, Square, Solid Top | 750X750 | 600X600 | 694X694 | 100 | 29 |
GROUP 1: (class A 15 minimum) Test 1.5 metric ton
Areas which can only be use by pedestrians and pedal cyclists.
- GROUP 2: (class B 125 minimum) Test 12.5 metric ton
Footways, pedestrian areas and comparable areas, car parks or car parking decks.
- GROUP 3: (class C 250 minimum) Test 25 metric ton
For gully tops installed in the area 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.
- GROUP 4: (class D 400 minimum) Test 40 metric ton
Carriageway of roads (including pedestrian street), hard shoulders and parking areas, for all types of road vehicles.
- GROUP 5: (class E 600 minimum) Test 60 metric ton
Areas imposing particularly high wheel loads, e.g. docks, aircraft pavements.
- GROUP 6: (class F 900 minimum) Test 90 metric ton
Areas imposing particularly high wheel loads, e.g. Aircraft pavements.
The standard specifies that the designer is responsible for making the appropriate choice of class and where there is any doubt regarding the class to be used, a higher class should be selected.
1) Solid Cover Series
* Ductile Iron
* Two Lifting Keyholes
* Cut-Corner Design (Regular corner covers are also available)
* Diamond raised top design
2) Double Sealed Series
* Ductile Iron
* Double Sealed
* 2 Lifting Key Holes
* Cut-Corner Design (Regular corner covers are also available)
Some types come with GRP sealing plate.
3) Double Triangular Series
* Ductile Iron
* Double Triangular
* Square Plate raised top design
* Special inscription or different identification is available
4) Round Cover Series
* Ductile Iron
* Double Triangular
* Square Plate raised top design
* Special inscription or different identification is available
Round frames, Square frames and Octagonal frames are available.
Some types come with GRP sealing plate.