Manhole Covers Ductile Iron GGG50 on Sale

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1000 pc
Supply Capability:
200000 pc/month

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Item specifice:

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

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. 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.

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.

4. 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.Manhole Cover Images:

Manhole Covers Ductile Iron GGG50 on Sale

Manhole Covers Ductile Iron GGG50 on Sale

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 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:Are there any better hardware parts for the glass sliding door?
The wheels are hard to push with bad quality is greatly linked, it is recommended that you use titanium alloy monolithic glass sliding door,
Q:What are door hardware included?
Pipe hinge: also called spring hinge. Mainly used for furniture door panel connection, it is generally required thickness of 16~20 mm plate. Materials include galvanized iron and zinc alloy. The spring hinge is provided with an adjusting screw, which can adjust the height and thickness of the upper, the lower, the left and the right. One of its features is that it opens the door according to the space and the cabinet door. In addition to the general 90 degrees angle, 127 degrees, 144 degrees, 165 degrees and so on have corresponding hinge matching, so that all kinds of cabinet have corresponding extension.
Q:Hardware accessories, hardware is the same?
It's almost like this, but it's a lot of different kinds
Q:Which part is responsible for leakage of hardware?
Warranty period, the same place repair two times, repair the bad, can find their own to repair, the cost of developers out.
Q:What do hardware mainly do?
Hardness testing of stamping partsHardness test of stamping materials, its main purpose is to determine the extent of annealing the sheet metal stamping process is suitable for the purchase will be subsequently the stamping process of different types, different requirements of plate hardness level. The aluminum alloy plate used for stamping processing can be tested by Webster's hardness tester. When the material thickness is greater than 13mm, the hardness tester can be used. The pure aluminum plate or the low hardness aluminum alloy plate shall adopt the Vickers hardness tester.
Q:Want to know the function and choice of cabinet hardware parts
The hardware is a hinge, drawer frame those things, now popular with buffer hinge, door close to half will be closing on their own, do not shut the bang, but the quality is the key, choose a better brand.If you want to benefit, or choose the traditional hinge, but the quality is still the first.
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 to buy some ardware
Professionals said that, on the market of aluminum magnesium alloy and alumina two main Aluminum Alloy common materials, the price difference of nearly 1/3, due to alumina and aluminum and magnesium alloy surface looks almost, it is quite difficult for consumers to distinguish, but still can be judged from the handle, water etc.. Aluminum magnesium alloy material is relatively heavy, the surface is smooth, water stains are not easy to trace, good toughness. And the surface of alumina material is rough, easy to black or trace of water stains. At the same time, if there is a slight scratch on the surface, the aluminum magnesium alloy material can be easily wiped away, while the alumina is difficult to remove. In addition, the door handle will also vary greatly because of the distance and the type of the door.
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:What does hardware and electrical appliances include?
Traditional hardware, also known as "hardware"". Refers to iron, steel, aluminum and other metal, after forging, rolling, cutting, and so on physical processing made from various metal devices. Such as hardware tools, hardware parts, daily hardware, construction hardware and security supplies. Most hardware products are not final consumer goods.

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