A Double Triangular ductile iron Manhole Cover is a specialized type of manhole cover with a unique design, primarily made from ductile iron (also known as spheroidal graphite cast iron). The cover features a distinctive shape with two triangular elements, and it is commonly used in urban infrastructure for its strength and durability.
Product Advantages
The Double Triangular ductile iron Manhole Cover is characterized by its two triangular shapes, which are often symmetrically arranged or alternately patterned. Some key features of this design include:
Optimized Structure
The triangular shape helps better distribute the pressure from above, enhancing the load-bearing capacity of the cover.
01
High Strength
Made from ductile iron, combined with the unique geometric design (two triangular shapes), the cover can withstand heavy loads and impacts, making it suitable for high-traffic areas.
02
Theft Prevention
Many Double Triangular ductile iron Manhole Covers come with theft-resistant features, reducing the risk of theft. The complex shape ensures that the cover is more secure and less prone to being opened by unauthorized individuals.
03
Anti-Slip Design
The surface of the cover is often treated to be anti-slip, increasing friction in wet conditions and preventing pedestrians or vehicles from slipping.
04
Aesthetic Appeal
Beyond its functional advantages, the design of the Double Triangular ductile iron Manhole Cover also provides an aesthetically pleasing appearance, making it suitable for modern urban road designs.
05
Reasons Behind the Design
The Double Triangular ductile iron Manhole Cover is designed for several key reasons:
Enhanced Load-Bearing Capacity
The two triangular shapes distribute external pressure more efficiently, preventing the cover from deforming or breaking under heavy loads.
Reduced Weight
Compared to traditional circular or square covers, the triangular design allows for a lighter cover without compromising on strength, making it easier to transport and install.
Theft Prevention
The complex shape of the design often incorporates security features that make it more difficult to steal or tamper with.
Extended Service Life
Ductile iron, combined with the thoughtful design, ensures the cover has a longer lifespan, reducing maintenance and replacement costs.
Applications of the Double Triangular ductile iron Manhole Cover
Due to its high strength, corrosion resistance, impact resistance, and other advantages, the Double Triangular ductile iron Manhole Cover is used in several applications:
Urban Roads: Especially in major traffic routes and streets with high volumes of vehicles, where manhole covers need to withstand heavy pressure.
Drainage Systems: Used in rainwater drainage, sewer systems, and other infrastructure that requires durable manhole covers to support long-term use.
Parking Lots: Large parking areas and underground garages require manhole covers that can handle the weight of vehicles.
Industrial Zones: Areas with heavy machinery and cargo transport require robust manhole covers that can withstand high pressure and impacts.
Municipal Networks: These covers are also used for manholes related to municipal services such as gas, water, electricity, and telecommunications, where security and durability are essential.
The Double Triangular ductile iron Manhole Cover is an innovative design that improves upon traditional circular covers by optimizing pressure distribution through its unique shape. Made from durable ductile iron, it offers enhanced load-bearing capacity, resistance to theft, and a long service life. This type of manhole cover is ideal for use in high-traffic urban roads, industrial areas, and municipal infrastructure, providing both strength and security in demanding environments.
Product parameters
|
Place of Origin |
Hebei, China |
Brand Name |
SND |
|
Surface Treatment |
Asphalt paint/OEM |
Material |
Ductile iron |
|
Product name |
Manhole Cover |
Process |
Sand foundry |
|
Hardness |
HBS 170-230 |
Standard |
EN124 |
|
Certification |
CE ISO19001 |
Load Class |
B125/D400/E600/F900 |
|
Quality Control |
100% Inspected |
Dimensions |
As drawings |
|
Shape |
OEM |
||
|
Additional Functions |
Anti-slip surface patterns. Optional anti-theft locks. Rubber sealing rings (leakproof) |
||
|
Customized Service |
Drawing design/Pattern/logo/words/coating |
||
Packaging and delivery
|
Package Solution |
Wooden pallet OEM |
|
Loading Port |
Tianjin Port/Qingdao Port/ |
|
Delivery time |
Within 15 days. New mold within 45 days. |
Dimensions in stock
|
Standard |
Class |
Type |
Outside Size |
Clear opening |
Height |
Hinge |
Lock |
|
EN124 |
B125 |
JRC4 |
1105*645mm |
912*452mm |
96mm |
yes |
yes |
|
EN124 |
D400 |
JRC12 |
1373*850mm |
912*452mm |
160mm |
yes |
yes |
|
EN124 |
D400 |
JRC12 |
1382*942mm |
1200*760mm |
100mm |
yes |
yes |
|
EN124 |
D400 |
JRC12 |
1650*950mm |
1500*750mm |
100mm |
yes |
yes |
|
EN124 |
F900 |
JRC12 |
1660*990mm |
150*750mm |
150mm |
yes |
yes |
|
EN124 |
D400 |
JRC14 |
1984*850mm |
1835*700mm |
160mm |
yes |
yes |
|
EN124 |
D400 |
JRC14 |
2335*710mm |
2225*600mm |
160mm |
yes |
yes |
Welcome contact us for more dimensions.
Inspection Items
Material Composition Inspection
Verify that ductile iron complies with the GGG50/QT500-7 standard, ensuring the contents of carbon, silicon, and magnesium meet specified qualification thresholds (no substandard elemental ratios).
Dimensional Accuracy Inspection
Measure critical parameters including manhole cover diameter, thickness, and frame fit clearance; confirm all dimensions align with EN 124 tolerance requirements to avoid assembly or usage issues.
Mechanical Performance Inspection
Assess key mechanical properties: tensile strength must reach a minimum of 500MPa, elongation must be no less than 7%, and load-bearing tests must be conducted for D400, E600, and F900 classes (per respective class standards).
Structural Function Inspection
Evaluate structural usability: hinge opening angle should be at least 110° (for easy access), locking mechanisms must demonstrate reliable operation, and seal rings must effectively block water and dust ingress.
Surface Quality Inspection
Check for surface defects (e.g., cracks, sand holes) to ensure no visible or functional flaws exist; verify the anti-corrosion coating's adhesion (to prevent peeling) and its resistance to corrosive environments.
Safety Performance Inspection
Validate safety-focused functions: confirm anti-settling stability (to avoid sinking under load), anti-bouncing reliability (to prevent noise or displacement), and anti-theft features (e.g., tamper-resistant fasteners) work as designed.
Sales Service System
On-site customization services (Consult, design, mold, produce, assembly, coating, package and delivery).
Order tracking to ensure timely delivery.
Installation and usage guidance.
Free replacement or repair during warranty.
Technical support and troubleshooting.
Regular follow-up for feedback.
FAQ
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