Manhole Cover by Cast Iron Heavy Duty Square Set D400

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200 pc
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10000 pc/month

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1,Cast Iron Manhole Cover Description :

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. 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.

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:

·High endurance

·High Strength

·Pressure Resistence



·Good visual effect

3,Manhole Cover Images:

Manhole Cover  by Cast Iron Heavy Duty Square Set  D400

Manhole Cover  by Cast Iron Heavy Duty Square Set  D400

Manhole Cover  by Cast Iron Heavy Duty Square Set  D400

4,Manhole Cover Specifications:

Manhole Cover  by Cast Iron Heavy Duty Square Set  D400

Manhole Cover  by Cast Iron Heavy Duty Square Set  D400

Manhole Cover  by Cast Iron Heavy Duty Square Set  D400


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. These covers are the T1G3, CLKS 450SR/46SL, CLKS 450SR and 300SR.

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 installed a recessed manhole cover in my garden, filled it with grass but it’s just dying; what can I do?

A. We produce bespoke GrassTops which feature drainage holes and geotextile membranes, allowing the water to drain through and your grass to grow. These are also suitable for other infill materials such as chippings, gravel and suchlike.

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:Rap or Metal?
Yes. 'Rust' specifically means iron oxide. All other metals oxidize, but only metals that contain iron can 'rust'.
Q:R&P: Battle of the Metal Bands (Introductions + choosing your bands)?
Metals only conduct electricity coz of their FREE electrons.but the electrons in a non metal r not free.
Q:POLL: Heavy Metal or Rap?
1 luster- metals have luster also known as the shinyness of the element 2 malleable- metals are malleable or the ability to be flatened without shatering (to test hit with a nail and hammer and if there a dent it metal if it shaters it not) 3 conductivity- metals conduct electricity and non metals dont, and a metaloid can do eather 4 heat- metals conduct heat beter so if it conducts heat its a metal (to test put hlaf of element into ice cold or hot water and if u can feal the heat or coldness when holding it outside the water it a metal if not its a nonmetal or metalloid can do both) a metaloid could have some of each proporties so its best to do all tests and if it has properties of nonmetals and metals its a metaloid
Q:what are the best experimental heavy metal / hardcore bands you've heard?
Any Metal in Jewelry with a Color added means it's a mixture of Metals. These are not perfectly the same thing every time,.. they can be ANYTHING any time. This Adds up to Yes, but people are going to EXPECT the added metal to be something they know.
Q:List of metal sub genres?
Pantera - Metal Magic Quiet Riot - Metal Health Anvil - Metal On Metal Metallica - Metal Militia Slayer - Metal Storm Venom - Black Metal Helloween - Metal Invaders Sodom - Witching Metal Judas Priest - Metal Meltdown
Q:Can you suggest me most epic metal songs?
Heavy Metal times two. Listen to Future Breed Machine (Mayhem Version) by Mesuggah to get a good feel of it.
Q:how do you judge if an element is a metal or non-metal?
Disturbed Evanesance Lacuna Coil Saliva Slipknot and heaps others.
Q:what are transition metals?
Heavy Metal or Hard Rock hardly death metal
Q:American or Non-American Metal?
Q:Does electronic metal exist in the 80's?
Not true. Even some solid metal is stronger than other solid metal. For example, the commen solid bar is a 1045. That has I think like 50K tensiles. The 1085 I think is like 80K tensiles. More tensiles more support.

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