cast iron sewer cover

Cast iron sewer covers D400 Double triangular design

Material: cast iron, ductile iron
GJS500-7 & EN124
Size: customized or standard
LOGO embed: available
Loading ability: from B125 to F900
Certification: CE, ISO

Product Description

Cast iron sewer covers are a round or square shape cover made of ductile iron or grey iron, which is mostly used for sewage treatment industries. According to the sewage shape and size, offer corresponding covers and frames. It can be used for more than 30 years, with very nice anti-rust ability.

D400 Double cast iron sewer cover —- according to EN124 standard, D400 is heavy duty. D400 means loading weight is 400KN, 40T.

Triangular cast iron sewer cover

Triangular cast iron sewer cover, this can make the cover more stable if it is large.

If you are looking for a different size, you can ask us, because we have many different molds for different sizes. If happen we have the corresponding size you need, you can save mold cost.

Also, shapes such as round, square, rectangular, double triangular are all available. We have many choices for you.


ShapeRound, Square, Rectangular, Triangular
Diameterfrom 200-1500mm
Depthfrom 10-400mm
MaterialDuctile iron GJS500-7
Loading abilityEN124
LockLock and hinge available
SizeCutomized size and shape available

Loading class

Manhole cover loading class, there are 6 different class accoring to EN124 standad, it`s A15, B125, C250, D400, E600, F900. Different loading class means different application. Normally, A15, B125, C250 for pavement, depestrain, park; D400 E600 for main road and highway; E600-F900 for airport, dock.

GroupLoading classApplication
#. Group 1A15Pedestrain, pavement
#. Group 2B125Driveway
#. Group 3C250Car parks
#. Group 4D400Main road, highway
#. Group 5E600Industrial area
#. Group 6F900Docks & airport

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