How to determine the size of brick body of nodular cast iron manhole cover? The following is like everybody to introduce it, I hope to help you
Nodular cast iron manhole covers are mainly used in municipal roads, highways, communications, electric power, tap water, residential areas, schools and other parks.
The brick masonry construction of nodular cast iron well cover shall be determined according to the size of well cover designed by the Design Institute, and its inner diameter or length * width and square circle (if constructed according to the actual sample) can also be implemented according to the corresponding standards. When building a well, it must be noted that the inner diameter of the wellhead should be consistent with the inner diameter of the well cover and grate, and the well cover installed should be level with the road surface. After the concrete or asphalt is poured and laid, the cover shall be opened and cleaned in time to avoid mortar or asphalt pouring the inspection well cover and the seat into one, so as to avoid affecting the opening in the future.
In order to ensure the normal use of nodular cast iron manhole cover, attention should be paid to the installation quality, so that the size is accurate, the installation is firm, the opening is convenient, and the appearance is clean and beautiful。
The features of ductile iron manhole cover are as follows
1。 Beautiful appearance: simple lines。 Silver appearance, modern trend。
2. Drainage: the leakage area is 83.3%, which is more than twice that of cast iron.
3。 Anti theft design: hinge connection between cover and frame, anti-theft, safe, easy to open。
4. Saving investment: long span. When heavy load, the price is lower than that of cast iron and the cost of crushing and replacing is saved.
5、高 强 度：强度和韧性远高于铸铁，可用于码头，机场等大跨度和重载荷的环境。
5. High strength: its strength and toughness are much higher than that of cast iron, which can be used in large span and heavy load environment such as wharf and airport.
6、规 格 多：满足不同环境，载荷。跨度，尺寸及形状所需
6. Specifications: meet different environment, load. Span, size and shape required
7. Good anti-theft performance:
This product is made of steel fiber composite. It is molded by high temperature, and has the characteristics of natural anti-theft because it has no secondary use value.
8. Convenient and beautiful:
The weight of products of the same specification is only one third of that of cast iron cover plate, which brings great convenience for installation, inspection and maintenance, and produces products of various specifications and colors according to customers' requirements, which beautifies the city even in management。
9. Long life:
Not afraid of acid and alkali corrosion, rust, electrical insulation, wear-resistant, weather resistant。
10。 High precision
The application scope of ductile iron well cover has many aspects: municipal, garden, parking lot, highway, wharf, power plant, steel plant, airport, community landscape road, urban sidewalk, motorway, square, lawn and flower pool, etc. Different from other well covers, nodular cast iron manhole covers are basically more beautiful and more beautiful, so the name of nodular cast iron landscape manhole covers is the real name.