Manhole Cover Ductile Iron B125 EN124 Square

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
100000 m.t./month

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Item specifice:

Material: Ductile Iron Standard: square Power Supply: AC Power
Customized: Non-Customized Surface Treatment: Zinc Plated

Product Description:

1.Cast 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.

2.Main Features of the Ductile Iron Manhole Cover:

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.
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.
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 Cover Ductile Iron B125 EN124 Square

Manhole Cover Ductile Iron B125 EN124 Square

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) Coating
A) black bitumen or epoxy .
B)Coating as per customer's requirement

4) Packing:
Wooden case or wood pallet, or as per customers' requirement 

5)  Payment terms: T/T or L/C 

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.

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Q:how to Flat washer installation
Light up, ********************** of no great importanceWashers are made of thin iron sheets, and that kind of iron is a positive one for beauty. So it is also reflected in the gasket is a beautiful problem. The friction on the other side of the lighter side will be larger. When the screw is rotated to the end, the washer will not rotate, and it will not scratch the contact surface below the washer.
Q:Why do you have to add a spring washer when it comes to the role of ah ah ah
The main function of the spring washer in the mechanical design, production to prevent the nut (or bolt) automatically loose, and even force.
Q:I would like to ask what is the standard gasket and gasket in general what material?
Stainless steel, there are A2 (304) or A4 (316) material or something
Q:In the design, the bolt connection is necessary to have a gasket?
Bolted components can not be avoided by extrusion, and a flat gasket reduces the wear of the surface of the component when tightening the bolts, especially those of the aluminum material. In parts when the bolt is tightened by extrusion deformation or broken, the torque control is improper. In the mobile phone production line, a lot of workers to install mobile phones, some people do not tighten tight, some people will break the crack parts, so the production line are used to play the role of measuring torque wrench.
Q:A general set of screws have a few nuts, bolts, washers?
Different bolt standards have different supporting methods, such as GB1228 big six angle a set of bolts contains 1 bolts a nut, and the gasket, and the shear bolt type is the 1 set of the bolts of a nut, the 1 gasket 1
Q:Are there any positive and negative points on the flat washer?
In fact, the reason is very simple, smooth side in the beautiful, no corners in the next, the pressure is small, small damage to the workpiece.
Q:What is the reason why the rubber washer is small after use?
The quality is not good or lubricating oil and rubber ring reaction
Q:I would like to ask the car transmission inside the thrust washer (thrust washer) is used to do ah?
Figure 3 thrust washers, 4 needle bearings, thrust washers to prevent excessive wear of the main bearings, the usurper.
Q:What is the meaning of the gasket / gasket material bar 200HV?
Surface Vivtorinox hardness, general requirements not less than the number of commonly used non-ferrous metals, such as bronze, tin bronze, etc.
Q:What is the difference between gaskets and seals?
Sealing ring is dedicated to seal, sealing effect is better.Gaskets are also included in the back pad, flat pad, spring pad, not necessarily a seal.

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