How is this different from a grate and a separate channel?

The body and grate are cast as a single unit. There is no separate channel to source, bed and align, and nothing to mismatch on site — the grate seats in the casting it was made for.

Which width do I need?

By the flow the run has to carry. The three sizes give a clear waterway of 100, 175 and 283 mm, and that figure — not the nominal size — governs capacity.

What stops the grate lifting under traffic?

Four M8 screws per unit secure it against displacement, which is what EN 1433 class D400 requires for carriageway duty.

How long is each unit?

1000 mm, laid end to end along the run.

Channel Drains

Cast Channel Drainage

Channel body and grate cast as a single unit, in three widths, all EN 1433 class D400.

Cast Channel

Ductile iron, EN 1433 D400

A complete drainage run in one casting rather than a grate dropped into a separate channel. The grate is integral to the body and secured against displacement by four M8 screws, so there is no separate channel to source, bed and align on site. Supplied in 1 metre lengths and laid end to end.

Material: Ductile iron EN-GJS-500-7
Standard: EN 1433, class D400
Construction: Channel and grate cast as one piece
Grate width: 125 mm on the 150, 205 mm on the 200, 311 mm on the 300
Fixing: Grate secured by 4 × M8 screws
Length: 1000 mm per unit, laid end to end
Coating: Temperature and corrosion-resistant, no elements harmful to drinking water

Plan and section of the cast channel drain, showing channel width, grate width, clear opening and depth — Dimensions are listed below; full drawings and DWG files are available on request.

Specifications

3 sizes, 1 load class

Dimensions in millimetres. Sizes outside this range are produced to order.

Cast Channel Drainage — GCC range, dimensions, load classes and weights
Reference	Nominal size(mm)	Clear waterway(mm)	Depth(mm)	Load class(EN 1433)	Weight(kg)
CHANNEL 150	1000 × 153	100	140	D400	30.80
CHANNEL 200	1000 × 232	175	210	D400	46.92
CHANNEL 300	1000 × 340	283	240	D400	76.50

Common questions

Specifying channel drains

How is this different from a grate and a separate channel?: The body and grate are cast as a single unit. There is no separate channel to source, bed and align, and nothing to mismatch on site — the grate seats in the casting it was made for.
Which width do I need?: By the flow the run has to carry. The three sizes give a clear waterway of 100, 175 and 283 mm, and that figure — not the nominal size — governs capacity.
What stops the grate lifting under traffic?: Four M8 screws per unit secure it against displacement, which is what EN 1433 class D400 requires for carriageway duty.
How long is each unit?: 1000 mm, laid end to end along the run.

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