Home - News - Industry News - Gully Grating: Functional Analysis, Types and Engineering Applications
June 11, 2025
Gully grating is a grid device installed in drainage systems to cover gullies, floor drains, or drainage outlets, serving dual functions of intercepting debris and guiding water flow. The technical details are as follows:
Debris Interception: The grid structure blocks solid wastes like leaves, garbage, and gravel to prevent pipeline blockage and reduce maintenance costs.
Flow: The hollow design ensures efficient water passage while balancing load-bearing capacity and drainage efficiency.
Safety Protection: Covers drainage openings to prevent pedestrians/vehicles from falling or objects from dropping.
Load Ratings: Classified by EN 1433 (European standard) into A15 (pedestrians), B125 (bicycles), C250 (light vehicles), D400 (heavy vehicles), etc. China's GB/T 23858-2009 specifies load, dimensional tolerance, and anti-slip performance.
Dimensions: Common length 500-1200mm, width 300-800mm, aperture spacing 5-50mm.
Anti-corrosion Treatment: Metal gratings use hot-dip galvanizing, painting, or epoxy coating; composite gratings have inherent corrosion resistance.
Pre-installation: Measure gully dimensions, inspect flatness, prepare materials/tools, and verify load rating compatibility.
Foundation Construction: Embed steel plates/bolts for new gullies; clean and groove edges for retrofits; position with ink lines aligned to water flow.
Acceptance: Test drainage efficiency, simulate load for municipal/highway gratings and check stability/safety.
Municipal Engineering: Road storm drains and sidewalk gutters, were installed to match the road slope for a flush surface.
Industrial Fields: Workshop drainage and chemical tanks, preferring corrosion-resistant stainless steel/FRP gully grating with sealing strips.
Building Drainage: Basement floor drains and roof gutters, matched to pipe diameters with regular debris cleaning.
Intelligent Design: Integrated sensors monitor blockages via for proactive maintenance.
Eco-friendly Materials: Recycled resin-based composites reduce carbon footprint for green infrastructure.
Landscape Integration: Customizable artistic gratings blend functionality with aesthetics in parks and pedestrian areas.
From urban drainage to industrial wastewater treatment, gully grating serves as an indispensable "safety gate" in modern drainage systems, revolving around the core demands of efficiency, durability, safety, and environmental protection.
