Ductile iron manhole cover is made from spheroidal graphite cast iron by machining hand moulding, solid top, recessed,single seal or double seal, square or rectangular or round,with or without hinge. Very good quality, smooth and free from sand holes, blow holes, distortion or any other defects. Loading capacity is 25 tons. The normal coating is black bitumen 30 microns thickness, also can make the epoxy coating according to the customer's demand.
| Class C250 specifications |
| Type |
Dimensions (mm) |
H |
e |
| A X A |
O X O |
C X C |
| Single Sealed, Square |
500X500 |
404X404 |
435X435 |
46 |
39 |
| Single Sealed, Square |
600X600 |
504X504 |
535X535 |
51 |
44 |
| Single Sealed, Square |
700X700 |
604X604 |
635X635 |
56 |
49 |
| Single Sealed, Square |
800X800 |
704X704 |
734X734 |
65 |
58 |
| Single Sealed, Square |
900X900 |
804X804 |
834X834 |
70 |
62 |
| Single Sealed, Rectangular |
700X500 |
400X600 |
436X636 |
57 |
30 |
| Single Sealed, Rectangular |
600X800 |
500X700 |
560X764 |
60 |
52 |
| Single Sealed, Square, Recessed |
400X400 |
300X300 |
376X376 |
90 |
84 |
| Single Sealed, Square, Recessed |
500X500 |
400X400 |
476X476 |
90 |
84 |
| Single Sealed, Square, Recessed |
600X600 |
500X500 |
576X576 |
90 |
84 |
| Single Sealed, Square, Recessed |
700X700 |
600X600 |
676X676 |
90 |
84 |
| Single Sealed, Rectangular |
729X529 |
628X428 |
668X468 |
78 |
33 |
| Single Sealed, Rectangular |
667X467 |
368X566 |
400X600 |
83 |
32 |
| Single Sealed, Rectangular |
640X440 |
286X492 |
528X328 |
77 |
28 |
| Single Sealed, Rectangular |
600X400 |
492X286 |
528X328 |
81 |
30 |
| Single Sealed, Rectangular |
1300X900 |
1130X730 |
800X395X3 |
69 |
34 |
| Single Sealed, Square |
400X400 |
300X300 |
357X357 |
77 |
30 |
| Single Sealed, Square |
500X500 |
400X400 |
457X457 |
77 |
30 |
| Single Sealed, Square |
600X600 |
500X500 |
557X557 |
77 |
30 |
| Single Sealed, Round cover, Round Base |
Ø750 |
Ø600 |
Ø660 |
100 |
18 |
| Single Sealed, Round cover, Round Base |
Ø780 |
Ø600 |
Ø660 |
100 |
18 |
In central heating systems in cold cities, heating manhole covers are used to cover the wellheads of heating pipes. It can facilitate the heating company to carry out daily inspection, maintenance and emergency repair work of the heating pipeline. During the winter heating period, entering the pipeline through the manhole cover can deal with problems such as leakage and blockage of the pipeline in time, ensure the normal transmission of heat energy, and allow residents to stay warm in winter.
Advantage and Feature
High strength and load-bearing capacity
Cast iron manhole cover has high compression, bending resistance, impact strength and toughness, can withstand the repeated crushing of transport vehicles, and is not easy to crush or damage after long-term use, which can effectively prevent the "urban black hole" accident caused by damage to the manhole cover and ensure the safety of the transportation process.
Different types of cast iron manhole covers can meet different load requirements, such as the manhole cover load class specified in the European standard EN124, from 15kN for pedestrians and bicycles only, to 900kN for large tire load lanes such as docks, airport runways, etc., which can be selected according to the specific needs of the transportation site.
Strong stability
Due to the equal distance from the center to the circumference of the circular cast iron manhole cover, no matter how the vehicle rolls it, the manhole cover is not easy to tilt, shift or fall into the wellhead, which can better cooperate with the wellhead and maintain a stable coverage state, so as to ensure the safety of transport vehicles and pedestrians
Product information:
Manhole Covers are manufactured for construction and public use. Manhole Covers shall be smooth and free from sand holes, blow holes, distortion or any other defects .
Designs
a) EN124 A15, B125, C250, D400, E600 and F900
b) A60005 for casting design
c) Major standards designs available
d) As per customers' drawings or samples
Process
c) Molding boards
d) Green sand with hand molding
Coating
a) Cold applied black bitumen
b) Without coating
c) Coating as per customers' requirement
Different accessories are available
Q:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q:How can I get a quotation from you ?
A:You can leave us message, and we will reply every message in time. Or we may talk on line.
Q:What product information do I need to provide?
A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.
Q;Do you have a discount?
A: We will do our best to provide you with these services at the best price and quality service
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