Drainage channel with grating INZA PD

polymer concretegalvanised steel grateroad

Short description
INZA PD polymer concrete drainage channel with D400 ductile iron grates, prefabricated in 1000 mm sections for buried installation. Designed for collection of runoff from paved platforms using a dual-slope system; suitable for areas with heavy truck traffic. Grates are bolted to galvanized steel side profiles and sections join via tongue-and-groove connections that can be sealed for watertight installation.

Main features

• Material: polymer concrete (mixture of aggregates and resins) for high mechanical resistance and reduced weight.
• Grates: ductile iron, load class D400, grate length 500 mm, black paint finish.
• Grate fixing: grates bolted to galvanized steel side profiles (4 screws per grate).
• Section length: prefabricated 1000 mm sections; each section uses 2 grates (500 mm each).
• Connections: tongue-and-groove joint for quick alignment and optional watertight sealing.
• Outlet preparation: pre-marked knock-out points for outlet openings to connect drainage pipes.
• Hydraulics: low surface roughness improves flow velocity and hydraulic capacity and promotes sediment transport (self-cleaning effect).

Variants / dimensions (examples)

• Channel Width 130 mm — External: 130 x 150 x 1000 mm; Internal width: 100 mm (P130RF).
• Channel Width 200 mm — External: 200 x 170 x 1000 mm; Internal width: 150 mm (P200RF).
• Channel Width 250 mm — External: 250 x 180 x 1000 mm (P250RF).
• Channel Width 300 mm — External: 300 x 210 x 1000 mm; Internal width: 250 mm (P300RF).
• Channel Width 350 mm — External: 350 x 210 x 1000 mm; Internal width: 300 mm (P350RF).

Applications

• Areas exposed to truck and heavy vehicle traffic: loading bays, paved platforms, service yards and industrial zones.
• Linear drainage solution as alternative to point drains and gully traps when high hydraulic capacity and heavy-load resistance are required.

Advantages of polymer concrete

• High mechanical resistance with lower weight compared to conventional concrete.
• Non-porous surface limits erosion from drained liquids.
• Low roughness coefficient leads to improved hydraulic performance and smaller required channel sizes.
• Improved sediment transport contributing to a self-cleaning effect.

Technical specifications

• Commercial denomination / series: INZA PD
• Body material: polymer concrete (aggregates + resins)
• Grate material: ductile iron, load class D400
• Grate length: 500 mm
• Section length: 1000 mm (2 grates per section)
• Side profiles: galvanized steel for grate support
• Connection: tongue-and-groove joint (can be sealed)
• Pre-marked outlet points for various pipe diameters
• Available external widths: 130 mm, 200 mm, 250 mm, 300 mm, 350 mm
• Examples of internal widths: 100 mm (130 ext), 150 mm (200 ext), 250 mm (300 ext), 300 mm (350 ext)
• Load class: D400 (suitable for heavy truck traffic)
• Finish: grates with black paint; polymer concrete with non-porous surface