Manhole Cover Ductile Iron EN123 GGG40 B125

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China main port
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1000 pc
Supply Capability:
100000 pc/month

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Item specifice:

Material: Ductile Iron Cross Sectional Shape: Round,Square Thickness: 60-100mm

Product Description:

1.Cast Iron Manhole Cover Description :

A manhole cover is a removable plate forming the lid over the opening of a manhole, to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.

A manhole cover sits on metal base, with a smaller inset rim which fits the cover. The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques.

1.Advantages: Good compressive, bending and impact strenth,anti-corrosion, not rust, long service life  

(at least 30 years). The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than. Contain no metal and no recovery value, anti-theft.

2.Applications: water supply and drainage, fire engineering, natural gas, 

electricity and telecommunications, street lamp and outdoor illuminations.

3.Designs: based on EN124 standard and according to customer's drawing or samples.

2.Main Features of the Ductile Iron Manhole Cover:

1) Production information
Manhole cover are manufactured for construction and public use. Manhole cover shall be smooth and free sand holes, blow holes, distortion or any other defects 

2) Material
A) Ductile iron GGG50

B) Grey iron GG20
3) Designs
A) EN124 Class B125 C250 D400 F 900, with different size and grammage, or as  customers' requirement.
B) as per customers' drawing or samples

3.Manhole Cover Images:

Manhole Cover Ductile Iron EN123 GGG40 B125


 Manhole Cover Ductile Iron EN123 GGG40 B125

4.Manhole Cover Specifications:

Consequences of temporarily overloading

Temporarily overloading may cause smash of concrete covers, seriously deformation, even slightly split. But this will not happen to FRP fiber cloth manhole cover.There is no metal contain, directly reducing potential accident or further maintenance costs caused by thieves. Anti-slip surface offer a safe road condition even in extreme weather.

Light weight

Compared with cast iron manhole cover, FRP manhole cover is 30% lighter.

Light weight allows more loading per vehicle, more convenient transportation and economical savings.

Allows a safer working condition, which single workers is enough for installation without risk of injury.

Long service life

Strong resistance of acid, alkali, weathering, anti corrosion of water, dust, manhole covers used for gas are well sealed which prevent poisonous gas leaking.

Temperature tolerance is at the range of -40°C-200°C.


We have organized several common questions for our clientsmay help you sincerely

Q. Can I fit a square manhole cover into a round chamber?

A. Yes, there are a select few manhole covers which are square-to-round, meaning they will fit square or round chambers. 

Q. I’ve measured my clear opening size but none of your covers match it, can you offer anything?

A. It’s likely that your cover is quite old and in imperial measurements which are no longer manufactured. However, we can offer bespoke solutions with manhole covers made to the specification you require.

Q. The project I’m working on requires a manhole cover with a quality finish, what’s available?

A. Naturally, galvanised steel of black polypropylene aren’t always ideal, and so we offer brass or stainless steel edging, as well as complete stainless steel covers.

Q. Odours are coming through where I have installed my manhole cover, why?

A. Your cover must be sealed and locked, or neoprene sealed, so you would require a T-Range Cover, or if you require a solid top, a selection of the PC range (e.g. PC2BG3, PC6CG3, not PC2BG) are suitable.

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Q:What does "R0.5max" mean in hardware drawing?
The maximum chamfer diameter is 0.5; the general unit is MM, MIN: minimum MAX: maximum
Q:What are the detailed classifications of hardware tools?
Hand tools, saws, wrenches, screwdrivers, pliersElectric and pneumatic tools; assembly; power tools; cutting; power tools; grinding; polishing; power tools; pneumatic toolsWeighing apparatus, measuring tool, lockset, cutter, weighing apparatus, measuring instrument, instrument, cutting tool, clampSecurity, daily hardware, security pipe fittings, door and window hardware, bathroom hardwareCraftsmen use tools, mechanics as tools, farm tools, civil tools, garden toolsSaw blade, saw blade, carbide saw blade, diamond saw blade, machine saw and saw equipmentAccessories, fittings, motor, reducer, air compressor, transmission partsMachinery, CNC, CNC electronic products manufacturing equipment, electrical appliances, machine tools and accessoriesMachinery equipment, packing equipment, printing equipment, separating equipment, welding and cutting equipmentEquipment, electric equipment, electric power, electrical equipment, wind
Q:Are there any better hardware parts for the glass sliding door?
Recently encountered a similar problem, you try to put the egg shell with nylon stockings wrapped try to rub the track there problems...
Q:Do you need your own hardware to buy a suit door?
When you buy, the store tells you to include the hardware, so you don't have to buy it yourself. If you buy, the store did not say that this content, usually not equipped with hardware to you, you need to buy your own hardware. It is recommended to buy hardware, so you can choose a better quality, price concessions can be slightly, but in the purchase of the door before the need to buy hardware with a copy of the drawings or samples for reference to store door leaf thickness, the size of the location and position of door lock. General professional stores, good service attitude, professional knowledge, more familiar with, will advance in your purchase when reminded in place.
Q:What do you have for construction hardware? What do you need to open a hardware store? Is the construction hardware mainly aimed at the construction site? Do we need hardware for real estate?
You need electric wall switch, socket, circuit breaker, high and low voltage power distribution cabinet. Etc..
Q:What does hardware and electrical appliances include?
Machinery equipment, hardware tools, building hardware, mechanical equipment, locks, security, daily hardwareElectronic, electrical, general accessories, sports and leisure, environmental protection facilities, home appliances, kitchen, raw materials
Q:What does building hardware include?
Big hardware includes steel plate, steel, flat iron, steel bar, universal channel iron, I-iron and various types of hardware, building hardware, tin, lock nails, wire, steel wire, steel wire cutting, home hardware, tools etc.. On the nature and use of hardware, iron and steel materials, non ferrous metal materials, machinery parts, transmission equipment, auxiliary tools, working tools, construction hardware, household hardware and other eight categories are to be considered
Q:Hotel room toilet stainless steel parts, how to maintain?
The reason for this is the bathroom scale attached to the leading surface, when cleaning, can squeeze a small amount of toothpaste on the tap, and then use the toothbrush gently scrub, then rinse with water after use dry cloth to polish.Tap cleaning and Maintenance Notes: stainless steel faucet surface can not be cleaned with wire ball, because after the steel wire ball cleaning, stainless steel faucet surface will not be able to repair the scratches.
Q:Does hardware include plumbing, building materials?
Plumbing(1) aluminium plastic pipe (2), three pass (3) pair of silk elbow (4) leak proof valve (5), ball valve (6), eight character valve (7), through valve (8), common floor drain (9), washing machine special floor drain (10), raw rubber belt (11) pump valve
Q:What do hardware mainly do?
Hardware: traditional hardware, also known as "hardware"". Of five metals: gold, silver, copper, iron, and aluminum. By artificial processing, you can make knives, swords and other art or metal devices. The hardware of modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware and security products. Most hardware products are not final consumer goods.Many kinds of hardware products, different specifications of hardware products, but in the Home Furnishing decoration also plays an irreplaceable role, choose a good hardware accessories can make a lot of decoration materials use more safe and convenient. Actually, there are more than ten kinds of hardware products in the materials market.

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