Manhole Cover EN124 D400 Made in China on Hot 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
Customized: 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:

1. 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.
2. 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.
3. 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 Cover EN124 D400 Made in China on Hot Sale

Manhole Cover EN124 D400 Made in China on Hot 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) Process
A) Molding boards

B) Hand Casting 

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

4) Different accessories are available 

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

5.FAQ:

We have organized several common questions for our clientsmay help you sincerely

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. 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.

However, the best way to obtain easy access is to have a bespoke, hinged manhole cover. 

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Q:How to remove mildew on the rubber washer
Ask is there with the rubber pad, generally, with boiling water boil can, if it involves food above recommendations or not, because you may be the cushion glue for food, not moldy food because silicone rubber is used, a number of years, generally with the first half of the year, the reason is because of the high temperature and long time, from the original into toxic non-toxic,
Q:how to Flat washer installation
Flat washers are used on both sides, are required to install.
Q:how to use Motor washer
What gasket, rubber reduces vibration, metal reduces pressure
Q:Why do some nuts and washers, and some nuts without washers
This is according to the requirements of the guests. Some need to add, some do not need to add
Q:A general set of screws have a few nuts, bolts, washers?
A screw nut a flat washer but a spring washer
Q:Do not use self tapping screws
Flat washer is generally used in the connecting piece is a soft texture, a hard brittle, its main role is to increase the contact area, pressure distribution, to prevent the soft texture of the crush. The basic function of the spring of the spring washer is to tighten the nut after the nut to a force, increasing the friction between the nut and bolt! The material is 65Mn (spring steel), heat treatment hardness is HRC44 ~ 51HRC, through the surface oxidation treatment.
Q:What is the reason why the rubber washer is small after use?
Rubber elastic loss (compression permanent deformation large), the rubber will lose the value of the work. If the dynamic load is the damping effect is poor!!! The specific design of rubber products can contact, contact Baidu private message!!
Q:When do flat washers use GB95 when using GB97.1?
There is no difference in the application. See the tolerance, the high requirements of the use of GB97.1. in order to save money, and the application environment is not high, use GB95
Q:Which is better than the spring washer and the inner tooth?
Depends on where to use!The spring washer is used in the mechanical combination to fasten the anti vibration and non seal components!
Q:What is the meaning of the gasket / gasket material bar 200HV?
Should be less than 200HV, which is gasket, should consider the tightness, high hardness of the seal is not good!

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