Manhole Cover with Square from China High Quality

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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,DC Power,Gasoline,Diesel
Customized: Customized,Non-Customized Surface Treatment: Nickel Plated,Copper Plated,Chrome Plated,Polishing,Zinc Plated

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.
2.Main Features of the Ductile Iron Manhole Cover:
•High endurance
•High Strength
•Pressure Resistence
•Anti-corrosion
•Anti-theft
•Good visual effect
Applications:
Manholes allow access to underground pipes, cables, meters and facilities.
BS EN124 Standard:
A15: Area which can only be used by pedestrians and pedal cyclists.
B125: Footways, pedestrian areas and comparable parks or car parking decks.
C250: For gully tops installed in the area of curbside channels of roads.
D400: Carriage ways of roads(including pedestrian streets), hard shoulder and parking areas, for all types of road vehicles.
E600: Areas of imposing high wheel loads, e.g. dock and aircraft pavements
3.Manhole Cover Images:

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Manhole Cover with Square from China High Quality

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
5.FAQ:

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: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:Why do you have to add a spring washer when it comes to the role of ah ah ah
If the screw on a spring washer, screw and screw hole fixed, due to the role of the spring washer spring will greatly reduce the possibility of loosening screws, falling off
Q:How to remove mildew on the rubber washer
Solution:1, activated carbon with gauze wrapped and then put;2, orange or orange peel or lemon cut into small pieces, put into steam for a while;3, is not in line with the onion steamed but the effect is poor.
Q:how to use Motor washer
Spring washer loose, as well as sealing gasket, corrugated gasket clearance
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:What is the reason why the rubber washer is small after use?
If you do not have any oil around the gasket, which may be used in the process of gasket compression deformation occurred!If there is oil to the present, it is likely that the oil things out of your rubber additives!
Q:Nominal diameter 12 washers, outside diameter?
at present our country flat washer implement related standards are as follows:
Q:When is the gasket (flat pad, spring pad)
The part between the connecting piece and the nut. A flat metal ring is generally used to protect the surface of the connecting piece from the nut.
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:Which is better than the spring washer and the inner tooth?
The inner tooth type flat anti-skid pad is used in the mechanical combination to fasten the vibration resistant sealing components!

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