Manhole Covers Ductile Iron Class C250

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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 Thickness: 100mm

Product Description:

1.Ductile Iron Manhole Cover Description :

A manhole cover is a removable plate forming the lid over the opening of a manhole, to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.Manhole covers are often made out of cast iron, concrete or a combination of the two.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.

2.Main Features of the Ductile Iron Manhole Cover: 

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 Class   C250

Manhole Covers Ductile Iron Class   C250

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:

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.

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:I would like to ask the so-called jewelry hardware refers to which hardware, including what?
In some places, not including marriage Anklet hardware, but need a pair of bracelets, this represents a good double happiness. Therefore, the new couple might as well ask your elders before you buy the wedding hardware, and learn from each other, but you must choose according to the local customs.Hardware accessories, as the name suggests, is made of hardware raw materials, jewelry, he appeared in every corner of life. Up to the building to the key buckle, as long as pay attention to beauty and decoration, that will reflect the hardware jewelry.Specific to the points, according to its nature to be divided, we can be divided into metal jewelry, plastic jewelry and so on. According to its size can be divided into home accessories, mechanical jewelry, as well as exquisite jewelry and gift jewelry. At present, we refer to hardware jewelry mostly refers to gifts.Hardware jewelry mainly has small ornaments, mobile phone accessories, cartoon characters, wear jewelry, twelve constellations, twelve zodiac signs, pendants, letters, letters, KT, cat, Disney, mascot, other jewelry and other categories.At present, Dongguan and Wenzhou are the largest production base of hardware decorations in china. After 2000, with the decline of the European and American markets and the rise of raw materials, and the rise of the domestic market. Hardware jewelry manufacturers began to pay attention to domestic people's appreciation, orientation and consumption level, began to turn to "small profits and quick turnover" era.
Q:What kind of hardware installation is there in order of home decoration?
If the door (door and door): first hinge positioning (or repair groove), temporary installation - positioning lock, remove the lock - processing and installation after formal installation of the door, and installed in the positioning door -- etc.
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:How to maintain the hardware?
Hardware should be regularly wiped with dry cloth to ensure its luster, in case of discoloration
Q:What's drawing design in a hardware factory?
I have done in the hardware factory mapping, using CAD or proe do, surveying and mapping is the first to return the drawings, in software measurements. Yes, some need your own design, some other factory orders and processing drawings, you have to translate them to your factory standards. Hope to adopt!
Q:What are the commonly used hardware materials? What are their respective properties?
Hardware is a kind of building materials industry, including construction hardware, mechanical hardware, spraying equipment, kitchen facilities, bathroom facilities and hardware fittings.The traditional hardware refers to hardware, refers to iron, steel, aluminum and other metal, through forging, calendering, cutting, and so on physical processing made from various metal devices. There are many kinds of hardware products, and the specifications are not the same. They occupy an important position in furniture decoration.Big hardware includes steel plate, steel, flat iron, steel bar, universal channel iron, I-iron and various types of hardware, building hardware, tin, lock nails, wire, steel wire, steel wire cutting, home hardware, tools etc.. On the nature and use of hardware, iron and steel materials, non ferrous metal materials, machinery parts, transmission equipment, auxiliary tools, working tools, construction hardware, household hardware and other eight categories are to be considered.
Q:Native produce is a local specialty, but hardware is not
Native produce is a local specialty, but hardware is not
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:Want to know the function and choice of cabinet hardware parts
Cabinet hardware accessories are divided into functional and decorative hardware kitchen cabinets in two types, wet, smoky environment, selection of hardware fittings should be able to withstand the test, not easy to rust, corrosion, damage.
Q:What are the laws and regulations of hardware?
Is the hardware must ensure the safe and reliable use, safety accidents caused by quality factors cannot, if the quality safety accidents caused, the producer must undertake the corresponding administrative or criminal liability. The laws in this respect are mainly safety production law, quality law, consumer law, and so on. More general, but more formal.

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