TriStar™ gully grates

D400 Straight Bar, Captive Hinge

Wrekin has developed its most competitive gully grate to date. The new TriStar™ ductile iron hinged gully addresses many issues related to cost-effective products.

The frame has been designed to suit all existing gully pot styles and will sit over a typical 450mm Ø circular or horseshoe chamber. The frame has been designed with an anti-debris feature to stop the backfill material entering the chamber.

This range of D400 Ductile Iron gully grates fully comply with BS EN 124:2015 and carries the British Standard Kitemark. The captive hinge allows for a single unit opening with anti theft feature.

  • Figure 1: Typical Gully Footprint

  • Figure 2: TriStar™ Gully Footprint

Key features:

D400 symbol For use up to a Group 3 locations carriageway environment
BSEN124 icon All fully comply with BS EN 124:2015 and are Kitemarked by BSI
HA104-09 Complies with Highways England specification HA 104/09
Hinged product for ease of access
kitemark symbol All fully comply with BS EN 124:2015 and are Kitemarked by BSI
Anti-theft captive hinge Captive hinges reduce theft risk whilst allowing easy lifting for gully cleaning
3 flange gully grate Three flanges – for placement against kerb edge
waterway symbol Large waterway area
ductile iron symbol Manufactured from strong and highly durable ductile iron
Wedge seat Wedge seat for non-rock and non-slide stability

Sizes and availability:


Wrekin product code Clear opening ( C X D mm) Base opening ( F X G mm) Frame Depth (E mm) Over frame size (A X B mm) Waterway (CM2)
DGH0D4/3633/KT 360 x 335 380 x 355 100 505 x 425 750
DGH0D4/4337/KT* 430 x 370 455 x 390 100 580 x 465 1050
DGH0D6/4337/KT* 430 x 370 450 x 390 150 575 x 465 1050
DGH0D4/4545/KT* 430 x 430 450 x 450 100 575 x 520 1250
DGH0D6/4545/KT* 430 x 430 450 x 450 150 575 x 520 1250

*The use of road plates is recommended where exposure to construction site traffic is likely.

  • Available options:

    • Screw-locking to deter unauthorised access to the gully chamber (will require standard extended-shank socket set tooling to engage/disengage locking screw).
    • Enhanced Anti-slip coating

    Available Accessories:

    • Armadillo™ Ductile iron protection shell (Excludes DGH0D4/3633/KT)

D400 Tristar Gully Grate Range

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