Special&Drawing

Ductile iron Manhole cover

Item No.: 3
Technical Parameters
Technical parameter test load: heavy 400KN, general 250KN, light 125KN [1]Bending strength: average 22MPa impact strength: average 10J /m2Water absorption rate: 1%
Acid resistance: sample at 20%Soak in sulfuric acid solution for 48h
Description
 4 categories
A. Metal manhole covers: cast iron, ductile iron, bronze manhole covers, etc .;
B. High-strength steel fiber cement concrete manhole cover (cement-based composite material);
C. Recycled resin manhole cover (recycled resin matrix composite material);
D. The inspection cover of polymer-based composite material
Performance characteristics
1. High strength: Magnesite inspection has high strength of compressive resistance, bending resistance and impact resistance and toughness. After long-term use, the product will not be crushed and damaged, and can completely prevent the occurrence of "urban black hole" accidents.
2. Beautiful appearance: the surface design of magnesite inspection manhole cover is exquisitely designed, the color is bright and adjustable, and it beautifies the urban environment.
3. Easy to use and light weight: The product weighs only about one-third of the cast iron, which is easy to transport, install and repair, and greatly reduces the labor intensity.
4. Anti-theft: Magnesium inspection manhole covers have no recycling value and are naturally anti-theft; according to customer needs and with a locking structure, the anti-theft property in the well is realized.
5. Strong weather resistance: The magnesite inspection manhole cover can be used normally in the environment of -50 ℃ ~ + 300 ℃ through scientific formula, advanced technology and perfect technical equipment.
6. Acid and alkali resistance, corrosion resistance, wear resistance, vehicle rolling resistance, long service life.

Technical Parameters
Technical parameter test load: heavy 400KN, general 250KN, light 125KN [1]
Bending strength: average 22MPa impact strength: average 10J / m2
Water absorption rate: 1%
Acid resistance: sample at 20%
Soak in sulfuric acid solution for 48h
No corrosion on the surface, quality loss is 1%
 

Review

1/3
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