cast iron inspection cover

Cast iron inspection cover 650 x 500 and 600 x 450mm

Material: Grey iron, ductile iron
GJS500-7 & EN124, GJL200
Size: customized or standard
LOGO embed: available
Loading ability: from B125 to F900
Certification: CE, ISO

Product Description

Cast iron inspection cover can be used for water tap, sewage treatment, municipal electricity, gas, telecommunication industries. According to clients` requirements offer different size and loading ability.

Different shape —— the shapes are round, square, rectangular, double angular and so on. Most popular design such as diameter 600 round or 600*600mm.

Also, there are some other sizes available, such as 650 x 500 and 600 x 450mm, in fact, the sizes are can be customized. Our factory has professional engineers that can help clients drawing and confirm some details.

Cast iron inspection cover service life

It made of ductile iron GJS500-7, it`s a very reliable material with good strength and tensile, now, it become the most popular material for inspection cover. Some other materials such as glass fiber and concrete are cannot withstand longer.

Normally, a cast iron inspection cover can use more than 30 years, some even 50 years.

With bitumen and epoxy coating that can enlarge its service life, offer better anti-rust ability.


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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