Ductile iron covers
The size of each well is different, and the size of the cover is different. In the choice of covers can be based on China's "check well covers" standard to choose. For example: plastic inspection wells of the standard size of 700 (usually wellhead size), covers should choose more than 750 size. This means that when we choose the covers, its actual size than the size of the wellhead about 50mm.
Ductile iron covers Dimensions: Heavy duty 400KN, type 250KN, light 125KN, square covers 100 * 500 B125 500 * 500 B125 600 * 600 B125 C250 700 * 700 B125 450 * 750 B125 C250 700 * 800 B125 and other different users Different specifications of the production of well covers the product specifications are different, according to the needs of customers to customize.
1, well cover plate flat direction for the load (support) direction, according to the gap between the width of flat steel flat length L;
2, according to the groove width and load requirements selected steel grid plate model.
3, the remaining length of less than 1 meter part of the length of the modulus by the modulus;
4, well cover by the length of the long groove layout, in line with the processing module standard plate width 995mm, between the board stay gap 5mm;
5, the proposed selection of standard size covers for design and construction, other specifications can be customized.

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