Manhole Covers EN124 GGG40 Ductule Iron D400

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China main port
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100 pc
Supply Capability:
3000 pc/month

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Product Description:

1,Cast Iron Manhole Cover Description :

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.

4.Color: black, Grey, green, blue and Marble , etc.

5.Inspection: in-house or the third party as per customer's request.

2,Main Features of the Ductile Iron Manhole Cover:

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

Srong 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.

Customer design

FRP manhole covers allow customers’ innovative design, logo, or etc. we have our own design team who can also offer design work for customers.

No color fading

The cover is not sprayed in surface but painted in whole material so that the color can keep no fading.

No noise

The products are made anti-noises, which is popular to residential areas.

3,Manhole Cover Images:

 Manhole Covers EN124 GGG40 Ductule Iron D400

Manhole Covers EN124 GGG40 Ductule Iron D400

4,Manhole Cover Specifications:

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


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 have a heavy traffic manhole cover but it has been broken by a forklift, why?

A. Forklifts have solid wheels which apply pressure differently to standard pneumatics and therefore covers must be specially adapted to suit this.

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. 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.

Q. I need access through my manhole cover on a regular basis, is this possible?

A. Yes, the majority of covers have built-in lifting keys, and for those that don’t we also supply lifting keys. However, the best way to obtain easy access is to have a bespoke, hinged manhole cover. 



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Q:What are the commonly used hardware materials? What are their respective properties?
Aluminum alloy (A5052), ----O, H32, H34, H36, H38HCharacteristics: good corrosion resistance, corrosion Younai, formability and good weldability, good anodic treatment. Purpose: household appliances, optical instruments, clocks, gear panel, vehicle and ship materials, trucks, cargo plate've etc..
Q:What does "R0.5max" mean in hardware drawing?
R0.5max refers to the pointed corners, the maximum angular radius is 0.5mm., and some drawings will also say "edges and corners blunt" and other terms.
Q:How do housekeeping refer to hardware accessories with good or bad?
The opening and closing of the imported hinge lighter, domestic general hard hinge, the hinge screws also adjust the import closely, first used a screwdriver to screw only, and many domestic hinge with the adjustment screw is not tight enough, can be rotated by hand.
Q:CNC lathe processing precision hardware, how to choose the grinding wheel?
Generally do not sharpen their own knives, buy special knife Bei
Q:What does a hardware factory do?.
Independent production of various types of hardware products, metal stamping parts, metal batteries, metal springs, metal screws and so on.
Q:I opened a small hardware factory, and I also have a few punch, want to do hardware accessories, and do not know what kind of good to do, good money, beg!
What do you want to punch?. What does your machine do?. Punch can punch too many things.
Q:Do their own cabinets, cabinets hardware where can I buy?
The general cabinet hardware, materials in city or specialized hardware store to sell. But if you're not common on the market like hardware, cabinets do, they use hardware, are from the big city (Guangzhou, Ji'nan) of the designated manufacturers ordered. If individual purchase sell it, suggest you buy from the Internet.
Q:What brand of hardware is better?
Hardware refers to the use of gold, silver, copper, iron, tin and other metal processing, casting tools obtained, used to fix things, processing things, decoration and so on.
Q:What is suitcase hardware? Do you know?
Luggage hardware is simple, that is, bags and backpacks and other hardware used. Luggage hardware accessories are mostly not final consumer goods
Q:What are the hardware parts used in the decoration?
Locks, handles, hinges, hinges, air guns, drawers, rails are basically these small metal products, so it's called hardware, of course, the new products change with each passing day, you can go to B&Q and other shopping malls to see

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