• Manhole Covers Ductile Cast Iron  GGG50 D400 System 1
  • Manhole Covers Ductile Cast Iron  GGG50 D400 System 2
Manhole Covers Ductile Cast Iron  GGG50 D400

Manhole Covers Ductile Cast Iron GGG50 D400

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
500 pc
Supply Capability:
200000 pc/month

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Item specifice

Material:
Ductile Iron
Cross Sectional Shape:
Round,Square
Thickness:
50-100mm

1.Ductile Iron Manhole Cover Description :

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.

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:

1. Designed structure & pressure dispersion

Arc-shaped bottom structure allows the pressure they bear disperse averagely on the whole surface. Besides, the products are made not by SMC, it was put in several layers of fiber cloth to enhance the structures. So they are stronger than SMC composite manhole covers.

2. 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.

3. Safety options

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.

4. 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.

3.Manhole Cover Images:

Manhole Covers Ductile Cast Iron  GGG50 D400

Manhole Covers Ductile Cast Iron  GGG50 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

4) Process

A) Molding boards

B) Hand Casting 

5) Coating

A) black bitumen or epoxy .

B)Coating as per customer's requirement

5.FAQ:

We have organized several common questions for our clients,may 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:What is the rebate rate for hardware?
You this question is general Oh, specifically to see the screw material (steel, copper) and use, in order to determine its tax rebate rate, 5% is yes.
Q:Please tell people where can to buy genuine hardware accessories?
To hardware mall, to the regular store. Distribution of various brands of shops.
Q:Is the hardware store profitable?
Hardware means gold, silver, copper, iron, tin. Later, metal was used to refer to all metals. In fact, a lot of hardware, whatever is money, you look at the hardware electrical market inside the boss is very rich, and the price is basically opaque, so if you do have to make sure
Q:What's the hardware in the wardrobe industry?
The wardrobe hardware parts are more and more widely used in furniture. With the advent of panel disassembly and assembly furniture and the rise of self assembly furniture, furniture hardware fittings have become an important part of modern furniture. Furniture hardware accessories can be divided into functional hardware and decorative hardware two types. Functional hardware refers to the hardware parts that can achieve certain functions of furniture, such as connectors, hinges and slipway. We also need to pay attention to the hardware parts. At the time of purchase, first to carefully observe the appearance of the process is rough, and then to see whether the switch is equivalent to several times hand freely; to see if there is no abnormal noise; and the grade of furniture to see is not matched; then hand a weigh weight, like products, the heavy weight of products relative to the said materials better. Try to use a longer history, higher visibility of the manufacturers of products. In addition, decorative hardware accessories, such as handles, and so on, we should consider the furniture and color, texture and coordination issues.
Q:Do you need your own hardware to buy a suit door?
If you have a better hardware match, should also be in advance with the merchant clear.
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?
Any of various metal and non-metallic fittings mounted on doors and windows of a building. The building door lock, handle, frame, hinge, door closers, handle, bolt, hook, chain, induction door device etc..
Q:Does hardware include plumbing, building materials?
Architectural decoration(1) galvanized iron pipe (2) stainless steel tube (3) plastic expansion rivet tube (4) (5) (6) cement nail advertisement nail (7) mirror nail (8) expansion bolts (9) self tapping screws (10) glass bracket (11) glass clip (12) insulation tape (13) Aluminum Alloy ladder (14) goods support
Q:What are the hardware parts of the door?
Handle, hinge, fasteners (bolts, nuts), lock, door stopper, seal, such as cat's eye
Q:What are the commonly used hardware materials? What are their respective properties?
Hardware, the past is gold, silver, copper, iron, tin, five kinds of metal materials collectively.Now, the hardware products are usually divided into two major categories: big hardware and hardware.Big hardware generally refers to metal plates, pipes, profiles, bars and wire;The hardware mainly includes coating material (such as tin), wire coating (such as Tie Si), a variety of small standard parts (such as fastening screws), non standard parts (such as wood screws) and various gadgets (such as a screwdriver) and so on.
Q:What is a hardware cooker?
Hardware, refers to gold, silver, copper, iron, tin, five metal materials called. Hardware is the mother of industry; the foundation of national defense and the products of hardware materials are usually divided into two major categories: big hardware and hardware. Big hardware includes steel plate, steel, flat iron, steel bar, universal channel iron, iron and all kinds of industrial character; hardware for building hardware, white metal, lock nails, wire, steel wire, steel wire cutting, home hardware, tools etc.

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