Manhole Cover Ductile Iron GGG40 D400 DI

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China main port
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Min Order Qty:
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 :

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) Product information:
Manhole Covers are manufactured for construction and public use. Manhole Covers shall be smooth and free from sand holes, blow holes, distortion or any other defects
2) Material
a) Ductile Iron GGG500-7 & 400-12
b) Grey Iron GG20

3) Designs .
a) EN124 A15, B125, C250, D400, E600 and F900
b) A60005 for casting design
c) Major standards designs available
d) As per customers' drawings or samples 

3.Manhole Cover Images:

 Manhole Cover Ductile Iron  GGG40 D400 DI


Manhole Cover Ductile Iron  GGG40 D400 DI

4,Manhole Cover Specifications:

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

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.

A15: Area which can only be used by pedestrians and pedal cyclists.

B125: Footways, pedestrian areas and comparable parks or car parking decks.

C250: For gully tops installed in the area of curbside channels of roads.


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.

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Q:Do you need your own hardware to buy a suit door?
Buy a set of doors, do not need to match their own hardware, but some hardware needs additional money.
Q:What does the home improvement hardware include? What are your buying skills?
Hanging wheel1, characteristicsThe lifting wheel is used for the sliding door of the balcony, kitchen and dining hall, and has an imported suspension wheel and a domestic hanging wheel. Most imported cranes are only imported bearings, and other parts are made in china.2, selectImport suspension wheel, because the imported bearings are used, most of them are super quiet, and the service life is about 15-20 years. The price is about 80 yuan. In contrast, the domestic crane wheel sounds slightly larger, and the service life is 5-10Around the year, the price of the top wheel and side wheel is about 45 yuan, and the price of the top wheel and the side wheel is about 20 yuan. When the consumer chooses the lifting wheel, the lifting wheel can be placed on the glass counter and pushed and pulled back and forth by handProducts, choose to feel good, no noise.
Q:How many kinds of hardware are there in this industry?
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. At present, there are more than ten kinds of hardware products in the materials market. 1, lock (1) is arranged outside the lock (2) lock (3) lock the drawer (4) ball type door lock (5) glass window lock electronic lock (6) (7) (8) chain lock anti-theft lock (9) lock the bathroom (10) (11) number lock padlock (12) the lock (13) lock core 2, handle class (1) drawer pull hand (2) cabinet (3) glass door handle 3, doors and windows hardware (1) glass hinge: hinge, hinge, hinge corner bearings (copper and steel), pipe hinge hinge (2) (3): drawer track rail, sliding door track, hanging wheel, glass block
Q:There is a round piece of hardware, want to buy online, do not know what the name of the call for help
The hardware market especially. Why should you buy it on the Internet write online are installed with copper fittings and accessories iron fittings
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:Does hardware affect the tightness of doors and windows?
The tightness of doors and windows mainly refers to the resistance to wind pressure, air tightness and water tightness.
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:How to buy some ardware
Choose hardware accessories, depending on the material and workmanshipProfessionals said that the general hardware fittings mainly copper, aluminum alloy, stainless steel and iron four kinds of materials, the price is also very different. At present, home decoration is the most use of stainless steel hardware, but stainless steel materials exist impure, easy to print water stains and other shortcomings, and now many families began to use aluminum alloy parts
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:I would like to ask the so-called jewelry hardware refers to which hardware, including what?
Hardware refers to: gold, silver, copper, iron, tin, hardware is the mother of industry, the foundation of national defense. Hardware has a wide spread, often used in iron and tin

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