EN124 D400 Ductile Iron Manhole Cover
D400 400kN road cover with clear opening and frame size confirmed by drawing.
View specifications400kN load class procurement guide
EN124 D400 Manhole Covers for Road Projects
D400 is commonly specified for carriageways and areas used by road vehicles. A correct RFQ needs more than the words D400: buyers should confirm the applicable EN124 edition, clear opening, frame dimensions, depth, test requirement, locking arrangement and installation drawing.
Procurement overview
Specify the product before comparing price
D400 is commonly specified for carriageways and areas used by road vehicles. A correct RFQ needs more than the words D400: buyers should confirm the applicable EN124 edition, clear opening, frame dimensions, depth, test requirement, locking arrangement and installation drawing.
Selected products
Products for project review
Open a product to review its description and available specification fields. Final dimensions and performance requirements are confirmed against the project drawing.
EN124 D400 Heavy Duty Road Manhole Cover
Heavy traffic access cover and frame for road and municipal utility projects.
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Hinged Ductile Iron Manhole Cover with Frame
Hinged and lockable options with custom logo or utility marking.
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Ductile Iron Manhole Cover and Frame Set
Matched cover and frame with EN124 load class and project marking options.
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Heavy Duty Ductile Iron Manhole Cover
Road, sewer and municipal utility access with project-required load class options.
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Round Ductile Iron Manhole Cover
Round cover and frame options for drainage, sewer and utility chambers.
View specificationsRFQ checklist
Details buyers should confirm
| Load requirement | D400 / 400kN wording must match the project specification and installation group. |
|---|---|
| Cover and frame fit | Confirm machining, bearing surfaces, frame geometry and anti-rattle requirement. |
| Safety features | Anti-slip pattern, hinge, lock, bolt, seal and lifting key options. |
| Documents | State whether drawings, material reports, load test reports or third-party inspection are required. |
| Commercial details | Quantity, delivery schedule, packing, destination port and Incoterm. |
Buyer questions
Frequently asked questions
Does D400 mean 40 tonnes?
D400 refers to the EN124 load class and a 400kN test load. Buyers should use the project specification rather than relying only on a simple tonne conversion.
Is every road cover automatically D400?
No. The required class depends on the installation group and engineering specification. Confirm it before quotation and production.
Can D400 covers be hinged and lockable?
Yes. Hinged, bolted and lockable arrangements can be reviewed against the required frame and maintenance method.
Can you provide custom markings?
Project names, utility text and logos can be cast into the surface after the marking drawing is approved.
Send the drawing for a practical quotation
Include standard, load class, clear opening, frame size, quantity and destination port.