Manhole Cover of Round with EN125 D400 on Sale

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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: Round Power Supply: AC Power,DC Power,Gasoline,Diesel
Customized: Non-Customized,Customized Surface Treatment: Zinc Plated

Product Description:

1.Ductile Iron Manhole Cover Description :
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.
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.Main Features of the Ductile Iron Manhole Cover:
Applications:
•High endurance
•High Strength
•Pressure Resistence
•Anti-corrosion
•Anti-theft
•Good visual effect
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:

Manhole Cover of Round with EN125 D400 on Sale

Manhole Cover of Round with EN125 D400 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) Different accessories are available
5) Packing:
Wooden case or wood pallet, or as per customers' requirement
6)  Payment terms: T/T or L/C
7)Inspection
A)Inspection by our factory
B)The third party inspection,SGS
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.

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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:Flat gasket with what material
Due to the standard for the 100HV, 140HV flat washers can be made of low carbon steel. General enterprises in the selection of materials, most of the materials used in Baosteel, easy to cold stamping. Here is a brief description of Baosteel standards.
Q:When do flat washers use GB95 when using GB97.1?
See tolerance, high requirements with GB97.1. if in order to save money, and the application environment is not high, use GB95.
Q:Specific conditions for use of spring washers
The conditions for the use of spring washers are as follows:The application of spring washer, can be applied to the following four standards: standard spring washer (GB93-1987), light spring washer, (GB859-1987), heavy spring washer (GB7244-1987).The purpose of the spring washer is to prevent the nut from loosening. In the national standards are illustrated. The six corners of the slotted nut is matched with the bolt and screw for end with hole, so that the split cotters inserting screw nut from the groove in the hole, preventing the nut macnaught loose, mainly used for vibration load or alternating load applications.
Q:What is the difference between gaskets and seals?
The washer pad is connected between the nut pieces and parts; sealing ring, ring is formed by one or several parts of the cover, fixed in a ring or a washer bearing and another ring or gasket contact or metal ring is the flat form of the labyrinth of narrow gap.
Q:How do you choose the appropriate gasket for bolt or screw connection?
When the bolt is connected, the target of the washer is to disperse the material which is connected with the material, reduce the damage to the surface of the material to be connected when the bolt or the nut is reduced, or prevent the loosening of the bolt. When you choose the gasket can be the actual need to relax the use of spring washers, to protect the surface of the material to be connected, optional plain washers. The principle of choice is that the inner diameter of the washer is slightly larger than the outer diameter of the bolt. Screw connection, the use of slightly larger than the location of the largest screw flat washers can be.
Q:Gasket A140 what is the material
A140 belongs to stainless steel, used for corrosive medium environment to do flat washer;
Q:Screw, nut, gasket connection order is how ah, elastic gasket and cushion under what circumstances should be placed on the
This is not a fixed pattern, the main design requirements. But there are rules to follow
Q:201 stainless steel gasket and 304 stainless steel gasket which is soft
Looks like 304, you this is the United States brand? It is recommended that you download a mechanical manual, look at their mechanical properties
Q:I would like to ask what is the standard gasket and gasket in general what material?
Less dosage, the metal with Q235, rubber with XB200, are very common. If the amount is large, according to the situation to choose the most economical

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