Ductile Iron Double-Layer Anti-Settlement Manhole Cover
Production information
The ductile iron double-layer anti-settlement manhole cover is an
advanced urban infrastructure product designed to prevent ground
settlement around manholes and ensure the long-term stability of
roads, pavements, and other surfaces. It is widely used in urban
areas, highways, industrial parks, and other locations requiring
enhanced safety and durability. The double-layer design and
anti-settlement structure provide superior performance for heavy
load conditions while reducing maintenance costs over time.
The ductile iron double-layer anti-settlement manhole cover is
specifically engineered to address two common problems in urban
infrastructure: manhole settlement and surface alignment issues.
Its double-layer structure consists of an upper frame and a lower
supporting frame, which work together to distribute pressure evenly
and prevent sinking. The use of ductile iron material ensures high
strength, excellent toughness, and corrosion resistance, making it
ideal for long-term applications in various environmental
conditions.
Features and Advantages:
(1) Anti-Settlement Design
The double-layer structure ensures that the load is distributed
evenly between the manhole cover and the surrounding surface.
Prevents settlement caused by heavy traffic or soft soil,
maintaining the alignment of the road or pavement.
(2) High Strength and Durability
Made of ductile iron (QT450-10 or QT500-7), which offers superior
tensile strength and toughness compared to traditional grey cast
iron.
Resistant to deformation and breakage under heavy loads, even in
high-traffic areas.
(3) Noise Reduction
(4) Corrosion and Weather Resistance
(5) Extended Service Life
(6) Safety and Anti-Theft Features
(7) Easy Installation and Maintenance
Modular design makes it easy to install, inspect, and maintain.
The adjustable frame allows for quick alignment with the
surrounding surface.
Technical Parameters:
| Performance Indicator | Parameter Value |
|---|
| Material | Ductile Iron (QT450-10, QT500-7) |
| Tensile Strength | ≥450 MPa |
| Impact Toughness | ≥10 J/cm² |
| Anti-Corrosion Treatment | Hot-dip galvanizing, asphalt coating, electrostatic spraying |
| Noise Reduction Design | Rubber seals/anti-vibration components |
| Environmental Temperature | -40°C ~ 80°C |
| Load Capacity | A15 / B125 / C250 / D400 / E600 / F900 |
| Service Life | ≥30 years |
Company Introduction:
SND has been producing and selling metal goods for about 20
years.By using manufacturing techniques including sand casting,
lost wax casting, lost foam casting, and precision machining, the
company has been supplying goods made of materials like cast iron,
steel, stainless steel, aluminum, etc. Additionally offered are
surface finishing and assembly services.
Our company has successfully created products in a variety of
industries, including automotive, rail transportation, agricultural
machinery, chemical, energy, electricity, water, air compressor,
and construction, thanks to our consistent efforts over the past
few years.
Our factories' ISO9001-accredited quality control systems guarantee
a consistent and dependable quality for each and every component.
Spectrometer, ultrasonic, magnetic, permeability, elongation,
tensile/yield strength, and other inspections are carried out as
part of routine production procedures.
