Why Luzhongbao 350×500×30 Ductile Iron Single Grate Has Become the Preferred Choice for Municipal Drainage Engineering
In the construction of modern urban drainage systems, drainage grates, as the first point of entry for stormwater collection, directly impact the efficiency of surface runoff discharge and road traffic safety. Traditional drainage grates commonly suffer from problems such as insufficient load-bearing capacity, susceptibility to theft, and low drainage efficiency, while ordinary cast iron grates often experience early damage due to unstable material properties. The Luzhongbao 350×500×30 Ductile Iron Single Grate, based on the material advantages of ductile iron and innovative structural design, successfully overcomes the technical shortcomings of traditional drainage facilities through scientific drainage hole arrangement and a reinforced support system, and has now become the ideal choice for projects like urban roads and residential area drainage.
This product strictly complies with the GB/T23858 standard and is precision-cast using QT500-7 grade ductile iron. The 350mm × 500mm rectangular dimensions are optimized through fluid dynamics, achieving optimal structural stability while ensuring drainage efficiency. The reasonable 30mm thickness, combined with the internally three-dimensionally distributed reinforcement rib network, ensures sufficient load-bearing strength while achieving optimal material utilization. The product surface features a deep anti-slip pattern design, with a friction coefficient exceeding 80 BPN, and is treated with hot-dip galvanizing, with a zinc layer thickness of 70μm, ensuring long-term durability in humid environments.
Material Advantages and Process Innovation
The Luzhongbao Single Grate selects QT500-7 ductile iron material, with a tensile strength exceeding 500 MPa and an elongation rate over 7%, combining high strength with good toughness. Through a unique spheroidization treatment process, the graphite within the material exhibits a spheroidal distribution, maintaining the casting properties of cast iron while significantly enhancing the material's mechanical properties. The casting process uses resin sand molding technology and an intelligent control system, ensuring precise product dimensions, a smooth surface, and a dense, uniform internal structure.
Structural Design and Drainage Performance
The internal structure of this single grate is optimized through Finite Element Analysis, adopting a crisscrossing reinforcement rib layout to form a stable spatial load-bearing system. The drainage hole design is simulated through Computational Fluid Dynamics, employing a gradually expanding hole structure that ensures maximum drainage efficiency while effectively preventing clogging by debris. Laboratory tests show that this product maintains over 95% drainage efficiency even when rainfall intensity reaches 150 mm/h, far exceeding national standard requirements.
Load-Bearing Performance and Safety Features
The product load-bearing class reaches the C250 standard, with a test load exceeding 250 kN, fully meeting the usage requirements for urban roads. The surface anti-slip pattern consists of raised points and grooves forming a three-dimensional structure, ensuring pedestrian safety in rainy or snowy weather. The grate body and frame use a three-point buckle connection, ensuring installation stability while facilitating later maintenance and cleaning. A special edge chamfer design effectively avoids noise issues during vehicle passage, enhancing user comfort.
Anti-Corrosion Performance and Service Life
Through dual protection of hot-dip galvanizing and epoxy asphalt coating, the product's corrosion resistance is significantly enhanced. The zinc layer forms a metallurgical bond with the substrate, effectively blocking the erosion of corrosive media. Verified by salt spray tests, the product's service life can exceed 30 years in harsh environments. The special surface treatment process also gives the product good UV resistance, preventing fading and aging during long-term use.
Construction Convenience and Economic Benefits
The modular design makes the installation process simple and efficient, with installation time per unit not exceeding 15 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 ultra-long service life and extremely low maintenance requirements reduce the comprehensive cost of use by over 35% compared to traditional products. According to engineering statistics, after adopting this single grate, maintenance frequency is significantly reduced, effectively saving operation and maintenance costs.
Application Scenarios and Adaptation Performance
The standard 350×500×30mm size adapts to various municipal drainage needs, being particularly suitable for locations such as sidewalks, residential roads, and plazas. The product can be customized with different surface treatments according to actual needs, meeting the requirements of special environments. Its refined appearance design harmonizes with the surrounding environment, enhancing the overall landscape effect while meeting functional demands.
Summary
The Luzhongbao 350×500×30 Ductile Iron Single Grate, with its excellent material properties, scientific drainage design, reliable load-bearing capacity, and significant economic benefits, has become the preferred solution for modern urban drainage construction. This product not only solves the technical defects existing in traditional drainage facilities but also, with its innovative design concept and exceptional performance, provides reliable 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 continued recognition in the market competition.
