Durable Heavy-duty Steel Grating for Municipal Drain

The municipal drain steel grating is manufactured from parallel load-bearing bars connected by cross bars to form a rigid open-grid panel. It is installed over drainage trenches, surface-water channels, catch basins and other municipal drainage openings.

The open grating structure allows rainwater and surface runoff to enter the drainage system while covering the channel below. Bearing bars transfer pedestrian or vehicle loads to the supporting frame and surrounding concrete structure.

Hot-dip galvanizing creates a protective zinc coating over the fabricated carbon steel grating. Plain bearing bars are suitable for general drainage areas, while serrated bars can provide additional grip on wet surfaces.

The steel drain grating can be supplied with angle frames, hinges, locking bolts, retaining chains and lifting handles. Removable and hinged sections are available for inspection, cleaning and maintenance.

High Drainage Efficiency

The open-grid structure provides a large drainage area, allowing surface water to enter the municipal drainage channel efficiently.

Engineered Load-Bearing Design

Bearing bar depth, thickness, spacing and span can be selected according to the expected pedestrian or vehicle load.

Hot-Dip Galvanized Surface

Galvanization protects the carbon steel grating and welded areas against outdoor moisture and corrosion.

Optional Serrated Surface

Serrated bearing bars provide additional grip for drainage covers installed in wet pedestrian or service areas.

Matching Support Frame

Angle frames and embedded components provide stable edge support and help distribute loads into the surrounding concrete structure.

Convenient Maintenance Access

Removable or hinged grating sections allow workers to inspect and clean the drainage channel without dismantling the entire system.

Custom Security Components

Locking bolts, hinges, retaining chains and concealed lifting points can be added to reduce movement or unauthorized removal.

Municipal Roads

Project-specified steel grating can cover drainage channels along urban streets, road edges and suitable traffic areas.

Sidewalks and Pedestrian Areas

Close-spacing or project-specific grating can collect surface water along sidewalks, plazas and public walkways.

Parking Areas

Heavy-duty drain grates are suitable for car parks, garages, vehicle entrances and other paved areas requiring surface drainage.

Parks and Public Spaces

Galvanized steel grating can cover drainage trenches in landscaped parks, squares and recreational facilities.

Industrial Facilities

The drainage cover can be used around factories, warehouses, loading zones, wastewater systems and equipment areas.

Residential and Commercial Developments

Steel trench covers provide drainage around apartment communities, office buildings, shopping centers and service roads.

Wastewater Treatment Facilities

Corrosion-resistant drain grating can provide access and drainage around treatment channels, utility areas and operating platforms.

As a professional guardrail manufacturer, we support size, shape & drawing customization with full-process in-house production. Our complete supporting services are listed below:

Frequently Asked Questions

How is the load capacity of the steel grating determined?

It depends on the bearing bar depth and thickness, bar spacing, clear span, steel grade, supporting frame and applied load.

Can the grating be installed in vehicle areas?

Yes, but the grating and frame must be designed and tested for the required vehicle load class before installation.

What is the difference between plain and serrated grating?

Plain grating uses smooth bearing bars. Serrated grating has notched upper edges that provide additional grip in wet environments.

Can a support frame be supplied?

Yes. Matching angle frames, embedded components and anchors can be manufactured according to the drainage-channel opening.

Can the drain grating be hinged?

Yes. Hinges, locking bolts, lifting handles and retaining chains can be added for inspection and maintenance access.

What surface treatments are available?

Hot-dip galvanizing is commonly used for outdoor municipal drainage. Painted, untreated and stainless steel options are also available.

What information is needed for a quotation?

Please provide the trench width and length, clear span, bearing direction, support details, expected load, required standard, surface type and finish.