Extra Heavy Duty · Class F 900 · Cast Iron Rail

BG-FILCOTEN®

pro G Series

Five channel widths. One integral ductile cast iron rail. The only BG-FILCOTEN® model rated to load class F 900 kN — the ceiling of EN 1433. Built for airports, ports, railway stations, heavy industrial thoroughfares, and any site where the ground beneath must not move.

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Product Line

PRO G

Extra Heavy Duty

Rail Material

DUCTILE IRON

Ductile iron (grey iron)

Channel Width

5 SIZES

NW 100 / 150 / 200 / 300 / 400

Max Load

F 900

Per EN 1433

Standard

EN1433

+ ASTM A112.6.8

Body Material

HPC

Fire Class A1 · 100% recyclable

Grating Lock

BOLTED

4-point boltable (F 900)

TEC

DOWNLOADS

Documentation & drawings

Spec sheets, material data, and CAD files for the FILCOTEN HPC system.

pro G NW 150 - spec sheet.trench_drain PDF pro G NW 150 - spec sheet.accessories PDF pro G NW 200 - spec sheet.trench_drain PDF pro G NW 200 — spec sheet.accessories PDF pro G NW 300 - spec sheet.trench_drain PDF pro G NW 300 - spec sheet.accessories PDF BG_FILCOTEN Installation Manual PDF RCI Trench Drains Product Selection Guide 2025 PDF

pro G NW 150 — trench_drain DWG pro G NW 150 — accessories DWG pro G NW 200 — trench_drain DWG pro G NW 200 — accessories DWG pro G NW 300 — trench_drain DWG pro G NW 300 — accessories DWG

Channel Sizes

Five widths.
One ceiling.

The pro G is the only BG-FILCOTEN® channel available in NW 400 / 16" - exclusively with cast iron rail, on demand. All five widths share the same BG-FILCOTEN® HPC body and integral ductile iron rail system.

NW 150 / 6"

Overall Width (incl. rail) - 174 mm

Height Range - 165 – 310 mm

Max Load Class - F 900 kN

Weight (no. 0) - from 32.5 kg/m

Slope Options - 0.0 % – 0.5 % (No. 1–10)

Max Outlet Drill Dia. - ø 130 mm

Item No. (no. 0) - 10615100

See catalog

NW 200 / 8"

Overall Width (incl. rail) - 222 mm

Height Range - 210 – 360 mm

Max Load Class - F 900 kN

Weight (no. 0) - from 45.0 kg/m

Slope Options - 0.0 % – 0.5 % (No. 1–20)

Max Outlet Drill Dia. - ø 180 mm

Item No. (no. 0) - 10620100

See catalog

NW 300 / 12"

Overall Width (incl. rail) - 325 mm (360 incl. outer)

Height Range - 300 – 460 mm

Max Load Class - F 900 kN

Weight (no. 0) - from 81.0 kg/m

Slope Options - 00.0 % – 100.5 % (No. 1–20)

Outlet Drill (on-site) - NW 100–300

Item No. (no. 0) - 10630100

See catalog

concrete trench drains

Like standard concrete, simply better.

BG-FILCOTEN® HPC (High Performance Concrete) is a 100% mineral material — an enhanced form of conventional concrete engineered without styrenes, synthetic fibres, or polymers. Its optimised high-density structure makes it possible to build drainage channels that are lighter, stronger, and cleaner than anything conventional concrete or polymer concrete can offer.

The result is a channel body that bonds with the surrounding concrete bed as a single continuous unit, reacts to temperature changes identically, and carries no harmful substances from installation through to end-of-life recycling.

Weight Reduction

−70%

vs. conventional concrete channels

Inner Surface

36 µm

Smoothest surface in class - optimal flow & self-cleaning

Fire Classification

A1

Non-combustible - no toxic fume emission

Recyclability

100%

Certified recyclable - zero artificial resins or solvents

Frost Resistance

−40°C

+ resistant to de-icing salts and UV

Harmful Substances

0%

No heavy metals, VOCs, biocides, or radioactivity

How to order

Three parts. One system.

Every trench drain assembly combines a channel body, a grating and a set of accessories. Here's how the pieces come together.

Channel body

+

Grating

+

Accessories

=

Complete system

01

Channel body

The structural run that carries and directs water flow. Profile and material set the depth, strength and install method.

tec V

pro V

pro G

02

Grating

The surface cover that sits flush with grade. Style and material set the load class, safety rating and finish.

Mesh

Slotted

Ductile iron

03

Accessories

End caps, outlets and fittings that finish the run and connect it to your drainage line.

End caps

Outlets

Silt buckets

Not sure which combination is right?

Send us your flow rate, load class and run length - our specialists will help you select the optimal channel, grating and accessory combination for your project.

Contact us for help

Part of the assembly

The grating isn't an accessory - it's engineered into the channel.

Every BG-FILCOTEN® channel body is designed around a matched grating: the rail profile, lock recess, and surround concrete depth are all sized to the grating's material and load class. Drop the wrong grate on the wrong channel and you lose the rating.

Rail geometry matched to grating thickness and lock type
fiX lock recess cast directly into the channel rail
Concrete surround ("X" dimension) scales with load class and rail material
One channel body, multiple grating options across the load range

Materials & types

ways to cover a channel.

Function first, form follows - every BG-FILCOTEN® grating trades off load capacity, corrosion resistance, and appearance differently. Pick the material, then the load class.

Ductile iron slotted grating

SKU: 17015107

L: 19.7 " x B: 6.8 " x H: 0.8 "
Slot width: 14/150 (0.56"/5.91")
Material: ductile iron

F 900

4-point bolted

for 6" body

Ductile iron slotted grating

SKU: 17015103

L: 19.7 " x B: 4.8 " x H: 0.8 "
Slot width: 14/150 (0.56"/5.91")
Material: ductile iron

E 600

fiX-locking

for 6" body

Ductile iron slotted grating

SKU: 17020107

L: 19.7 " x B: 8.8 " x H: 0.8 "
Slot width: 14/95 (0.56"/3.75")
Material: ductile iron

F 900

4-point bolted

for 8" body

Ductile iron elongated bar grating

SKU: 17020103

L: 19.7 " x B: 8.8 " x H: 0.8 "
Mesh width: 22/13 (0.87"/0.52") | ADA compliant
Material: ductile iron

E 600

4-point bolted

for 6" body

Ductile iron elongated bar grating

SKU: 17030103

L: 19.7 " x B: 13.7 " x H: 1 "
Mesh width: 29/13 (1.15"/0.5") | ADA compliant
Material: ductile iron

E 600

fiX-locking

4-point bolted

for 12" body

Ductile iron slotted grating

SKU: 17030107

L: 19.7 " x B: 13.7 " x H: 1 "
Slot width: 16/140 (0.63"/5.52")
Material: ductile iron

F 900

4-point bolted

for 12" body

Engineering

Built for the long run.

Every detail of the tec V is engineered to outperform - from the snap-on grating system to the textured exterior that bonds permanently with surrounding concrete.

fiX Snap-On Anchoring

The integral four-point quick-release, spring-loaded fiX system holds gratings firmly in place while allowing tool-free removal for maintenance. Two anti-sliding lugs prevent any longitudinal shift.

Superior Self-Cleaning

The ultra-smooth flat inner surface (36 µm roughness) minimizes friction and achieves best-in-class flow characteristics - outperforming polymer concrete at 36 µm+ and conventional concrete by a wide margin.

Permanent Bond to Substrate

Computer-designed anchoring ribs increase exterior surface area dramatically, giving far better adhesion to the surrounding concrete bed. The identical linear expansion coefficient ensures a permanent fit with no seasonal movement stress.

High Compressive Strength

Patented fiber-enriched HPC formula delivers exceptional compressive strength in thin-walled construction - no synthetic resins required. BG-FILCOTEN® outperforms polymer concrete and glass fiber modified concrete on all key metrics.

Galvanized Steel Rail

Integral 2 mm galvanized steel rail on the tec V provides secure grating lock-in with adjacent surface attachment points. Engineered fixing lugs distribute load evenly across the BG-FILCOTEN® channel body.

Temperature & UV Resistant

Cement-bonded fiber composite reacts to temperature change identically to the surrounding concrete bed, creating a unified, stress-free system. Resistant to frost down to −40°C/−40°F, de-icing salts, and UV radiation throughout its service life.

Applications

Where only
F 900 will do.

The pro G is specified whenever load class F 900 is required by the EN 1433 standard, or wherever the sustained weight of heavy equipment, aircraft service vehicles, or freight logistics makes a lower-rated system a liability.

F 900

Commercial Airports

Areas used by especially heavy wheel loads - aircraft service vehicle routes, aprons, jet bridge areas, fuel truck lanes, and cargo handling zones at commercial airports.

F 900

Ports & Container Terminals

Ship-to-shore crane rails, container stacking yards, heavy vehicle turnaround aprons, and port access roads where 40-tonne+ vehicles operate continuously.

E–F

Heavy Industrial Sites

Steelworks, petrochemical plants, mining facilities, and manufacturing floors where heavy forklifts, cranes, and industrial transport equipment operate daily.

E–F

Railway Stations & Yards

Platform drainage, rail yard vehicle access routes, maintenance depot floors, and locomotive service areas requiring certified railway-grade load resistance.

D–E

Distribution & Logistics Centres

High-frequency forklift traffic, articulated lorry loading bays, cold storage facilities, and large-scale distribution infrastructure where traffic is heavy and continuous.

A–E

Road & Infrastructure Projects

Carriageways, roundabouts, motorway service areas, temporary highway crossings during construction, and road verges where long-term structural performance is non-negotiable.