Why Everyone Chooses Luzhongbao Ductile Iron Settlement Drainage Grate (Trench Cover Plate)
In the construction of modern urban drainage systems, settlement drainage grates, as key components of drainage channel systems, directly determine drainage efficiency, road service life, and traffic safety. Traditional drainage grates have long faced pain points such as insufficient load-bearing capacity, susceptibility to settlement, and low drainage efficiency, while ordinary cast iron products have a relatively short service life due to unstable material properties. The Luzhongbao Ductile Iron Settlement Drainage Grate, based on the material advantages of ductile iron and an innovative anti-settlement structural design, successfully solves the technical bottlenecks of traditional drainage facilities through a scientific load transfer system and precision manufacturing processes, and has now become the preferred solution for heavy-duty areas like urban roads and expressways.
This product strictly complies with the GB/T 23858 standard and is precision-cast using QT500-7 grade ductile iron. Its unique anti-settlement design effectively disperses loads to the road base through a spigot-and-socket connection structure, completely solving the problem of the "belly button effect" common in traditional grates. The grate surface features a deep anti-slip pattern design, with a friction coefficient exceeding 85 BPN, and is treated with dual protection of hot-dip galvanizing and epoxy asphalt coating, ensuring long-term durability in humid and chemically corrosive environments. The internally three-dimensionally distributed reinforcement rib network and optimized drainage hole design significantly enhance the product's load-bearing capacity while ensuring drainage efficiency.
Material Advantages and Process Innovation
The Luzhongbao Settlement Grate selects QT500-7 ductile iron material. Its unique spheroidal graphite microstructure gives the material excellent mechanical properties. Tensile strength exceeds 500 MPa, and elongation exceeds 7%, combining high strength with good toughness. This material characteristic enables the product to withstand D400 grade loads, fully meeting the demands of heavy vehicle traffic. The casting process uses advanced resin sand molding technology and an intelligent control system, ensuring precise product dimensions and a dense internal structure. The unique anti-settlement structure, through a spigot-and-socket connection design, disperses loads to the road structural layers through the wide flange face, effectively avoiding the direct pressure on the manhole structure common with traditional grates.
Structural Design and Performance Characteristics
The core innovation of this settlement grate lies in its anti-settlement structural design. By changing the traditional "plinth seating" connection to a "spigot-and-socket" type, the load is effectively dispersed to the road base, reducing the pressure on the manhole structure by over 60%. The interior uses a grid-pattern reinforcement rib layout, with the main rib height precisely calculated, forming a stable spatial load-bearing system. The mating surface between the grate and the frame uses a labyrinth seal structure, combined with high-performance rubber sealing strips, effectively preventing sediment ingress and groundwater leakage. Professional testing confirms the product's load-bearing capacity reaches the D400 standard, with a test load exceeding 400 kN.
Functional Characteristics and Drainage Performance
1.Efficient Drainage Design: The drainage holes use a gradually expanding hole structure, optimized through Computational Fluid Dynamics, ensuring maximum drainage efficiency while effectively preventing clogging by debris. Actual measurements show it maintains over 95% drainage efficiency even when rainfall intensity reaches 180 mm/h.
2.Multiple Safety Protections: The product possesses five protective functions: anti-theft, anti-slip, anti-settlement, anti-noise, and anti-bounce. The anti-theft system uses concealed hinges and dedicated locks; the anti-slip surface ensures pedestrian safety in rainy or snowy weather; the anti-settlement structure fundamentally solves the problem of pavement settlement around the manhole.
3.Environmental Noise Reduction Characteristics: A T-shaped synthetic rubber strip is embedded in the contact surface between the grate and the frame, effectively eliminating traffic noise through elastic buffering while preventing environmental pollution caused by sewage overflow.
Construction Convenience and Economic Benefits
Modular design makes the installation process simple and efficient, with installation time per unit not exceeding 30 minutes. Precise dimensional control ensures a perfect fit with standard frames, requiring no on-site adjustments. From a whole-life-cycle cost analysis, the product's design service life exceeding 30 years and extremely low maintenance requirements reduce the comprehensive cost of use by over 40% compared to traditional products. The unique quick installation system allows the grate to be paved and rolled simultaneously with the asphalt pavement, significantly shortening the construction period.
Application Scenarios and Adaptation Performance
This settlement grate can adapt to various municipal drainage needs, being particularly suitable for heavy-duty areas like urban arterial roads, expressways, and airport runways. The product can be customized in different sizes and surface treatments according to actual needs, meeting the usage requirements of special environments. Its refined appearance design harmonizes with the surrounding environment, enhancing the overall landscape effect while meeting functional demands.
SummaryThe Luzhongbao Ductile Iron Settlement Drainage Grate, with its innovative anti-settlement design, exceptional load-bearing performance, excellent service life, and significant economic benefits, has become the preferred solution for modern urban drainage construction. This product not only solves the technical challenges of settlement, noise, and theft existing in traditional drainage grates but also, with its advanced design concept and reliable performance, provides strong assurance for the efficient operation of urban drainage systems. Choosing this product means injecting lasting quality assurance and value return into the engineering project, which is the fundamental reason for its widespread recognition in the market competition.
