Manhole Covers Ductile Iron GGG50 D400 EN124

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1000 pc
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200000 pc/month

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Item specifice:

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

Product Description:

1.Ductile Iron Manhole Cover Description :

Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than 50 kilograms (110 lb). The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorised people not having suitable tools to remove them.

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:                   

•High endurance

•High Strength

•Pressure Resistence

•Anti-corrosion

•Anti-theft

•Good visual effect

1. High load capacity & resilience 

Hardness is same as cast iron, while FRP manhole covers have overwhelming advantages on resilience recovery. They are designed to exceed A15/B125/C250/D400 load capacity, according to EN124: 1994.

2. 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.

3. 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.Manhole Cover Images:

Manhole Covers Ductile Iron GGG50 D400 EN124

Manhole Covers Ductile Iron GGG50 D400 EN124

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.FAQ:

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. 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:How to maintain the hardware?
Always use soft cotton or sponge with neutral soap water to wipe the surface of the faucet, to avoid water containing trace amounts of carbonic acid, forming scale, and corrosion on the surface of the faucet
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 does hardware refer to? What's the use?
[hardware] traditional hardware, also known as "hardware", refers to gold, silver, copper, iron, aluminum, five kinds of metal, processed by artificial, can be made into knives, swords and other art or metal devices. Modern society is more widely used in hardware, today's hardware is often used as a metal or copper, iron and other products collectively. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not consumer goods.[hardware use] hardware products, appear in economic life, political life and military activities in every corner. Hardware products of various types, specifications vary, but hardware products in modern life also plays an irreplaceable role in the choice of good hardware fittings, can make many structural parts more safe and convenient to use.
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:What kinds of hardware fittings can be divided into?
Hardware accessories can be classified according to standard and non-standard parts. This classification is general, but the general classification is like this, and there are different hardware used in different industries, there are different categories.
Q:What does a hardware factory do?.
Hardware: traditional hardware, also known as "hardware"". Of five metals: gold, silver, copper, iron, and tin. 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.
Q:What kind of hardware installation is there in order of home decoration?
General bought the house, it is necessary to consider the new home decoration, sometimes is not assured decoration workers careless, sometimes in order to save costs, part of hardware will be to install yourself, if you usually do not work with these objects will be optimistic about the installation essentials, not just random installation, because of the small hardware are connected carefully selected furniture, Huaihua hardware Xiaobian bring you all kinds of hardware installation steps, do not seek the most, only hope for help.
Q:How do you do the hardware business?
Looking for small, relatively low tech orders. Because the production capacity is limited, for large quantities of professional products, could not even pick up a line, and a large volume of orders relative profit is very low, for not being able to produce large amounts of labor of small and medium-sized enterprises is difficult to stand up, and a large volume of orders requires a large amount of capital turnover, for this small and medium-sized enterprises is also a big problem. Therefore, the establishment of enterprises in the development of the market to find more small quantities of relatively high profits of orders and buyers, more conducive to the growth of enterprises and the accumulation of raw funds.
Q:What's drawing design in a hardware factory?
Hardware factory drawing design is to use CAD or proe to do some mapping and three-dimensional parts of some small parts.
Q:Is the hardware store profitable?
Each row from do profit ratio is about the same, about 10-30, 10 is 30, is relatively small, generally Maori words can say it, but there is little profit. Of course, refers to the rules of doing business, not to engage in the door. If you want to know what the experience at least know quality cost. This shop is the shopkeeper, but still need to go out to run a single, to the long-term stability of the single to make money. Store address requirements are not high. Some people take orders, the ability is very strong, then directly in the small courtyard to open a money.

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