Supplier From
Chengdu City,
Si Chuan,
China
Supplier From
Chengdu City,
Si Chuan,
China
C250 Ductile Iron Three-Proof Trench Grate Outdoor Cast Iron Storm Drain Grate 350x670mm
The C250 Ductile Iron Three-Proof Drain Grate (350x670mm) is specifically designed for municipal road catch basins, roadside ditches, parking lots, factory access roads, commercial areas, and infrastructure drainage systems. Made of premium ductile iron with a socket-type frame structure, it offers excellent load-bearing capacity, installation stability, and outdoor durability.
Featuring a clear opening size of 350Ã??670mm and a longitudinal slotted drainage structure, this grate effectively collects surface rainwater and directs it into underground drainage systems. Designed to the C250 load class, it can withstand a test load (F) of no less than 250kN. It is ideal for areas requiring both drainage efficiency and load-bearing performance, such as vehicle traffic zones and roadside drainage. The C250 class is typically used for curb ditches and slow-traffic areas; specific product selection should be based on project design and traffic conditions.
Key Features
Ductile Iron Material: High strength and excellent toughness, suitable for long-term exposure to vehicle rolling, rain erosion, and harsh outdoor environments.
C250 Test Load Class: Withstands a test load of F greater than or equal to 250kN, fully meeting C250 load-bearing requirements.
Three-Proof Structure Design: Anti-theft, anti-jump, and anti-displacement structures can be configured according to project needs, enhancing road safety and frame stability.
Frame-Included Installation: The grate and outer frame work together to enhance peripheral support and installation firmness, reducing the risk of loosening, abnormal noise, and displacement caused by long-term vibration or loads.
Slotted Drainage Design: Multiple longitudinal drainage slots facilitate the rapid collection of surface rainwater, making it perfect for roadside ditches, catch basins, and parking lots.
Anti-Slip Surface Texture: Anti-slip textures on both the frame and grate surfaces improve safety for pedestrians and vehicles.
Black Anti-Corrosion Surface Treatment: Available with black asphalt coating, paint, or other custom anti-corrosion coatings to adapt to different engineering environments and aesthetic requirements.
Product Overview The C250 Ductile Iron Three-Proof Drain Grate (350Ã??670mm) is a framed rectangular road drainage product, suitable for municipal and industrial drainage projects that require stable installation, rapid drainage, and medium-to-heavy load-bearing capacity.
Compared to standard frameless grates, the framed design provides more reliable edge support and facilitates seamless connection with concrete trenches, road catch basins, or pre-installed openings. In environments with repeated vehicle traffic, road vibration, rain erosion, and long-term outdoor exposure, proper framed installation significantly enhances overall stability.