Manhole Covers Ductile Iron GGG50 D400 DI

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China main port
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500 pc
Supply Capability:
200000 pc/month

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Item specifice:

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

Product Description:

1.Ductile 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:                  
•High endurance
•High Strength
•Pressure Resistence
1. 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.
2. 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.
3. 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 Iron GGG50 D400 DI

Manhole Covers Ductile Iron GGG50 D400 DI

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
6) Different accessories are available
7) Packing:
Wooden case or wood pallet, or as per customers' requirement
8)  Payment terms: T/T or L/C
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:The bathroom hardware should be stainless steel or Aluminum Alloy it?
It must be made of stainless steel. It's durable. Although the Aluminum Alloy will not rust, but because aluminum is a very soft, long time will rot.
Q:What do the hardware stores sell?
Most of the hardware stores include: ordinary light bulbs, energy-saving light bulbs, switches, sockets, wires, safety switches, taps, sandpaper, brushes, and economical coatings
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:What does hardware mean? Big brother, give me a detailed explanation
The so-called hardware is gold, silver, copper, iron, tin, five kinds of metalHardware is an object made of these materials!
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 is the rebate rate for hardware?
According to the 5% tax rebate rate, the income is 170W, according to the vat of 17%, the tax refund amount is =170/1.17*0.05=7.27W
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?
Mapping is the first to return the drawings and to use software to measure them. Three-dimensional map, popular is the use of people with visual difference and optical refraction principle in a plane so that people can directly see a three-dimensional painting, painting things can be protruded from the outside of the screen, which can also be hidden, to give people a strong visual impact. This is mainly the use of light, to reflect the actual situation, the contrast of light and shade, and 3D picture is the real simulation of the human eye to see the world principle, using optics refraction produced, it can make sense to see the eyes of objects on the left, and the three-dimensional relationship.
Q:What do you learn before you sell hardware?
First of all, what is the hardware materials, hardware classification, such as bathroom hardware, hardware tools, electronic hardware
Q:What are the laws and regulations of hardware?
There are two main parts.One is the national quality standard. This is the regulation. The hardware shall conform to the requirements of the regulations in accordance with the regulations.Another is the national security standards, this is the strict implementation of the legal norms.

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