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Highway D400 Gully Grates - 3 Flange

Our Highway Group 3 gully grates are designed and manufactured to meet the enhanced requirements of Highways England’s Design Manual for Roads and bridges (DMRB) specification CD 534 v0.1.0 (formerly HA104/09).

The Highway range of access covers and D400 gully grating conforms to BS EN 124:2015 and also includes patented safety provisions and design features to ensure safe and robust performance.

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Highway gully grate d400 render

Features

Pedestrian-friendly gully grates

Pedestrian-friendly gully grates are ideally suited to prevent prams, trolleys, scooters and bicycles from getting trapped in the grating.

Stock code Range Clear opening
(mm)		 Base opening
(mm)		 Overall frame
(mm)		 Frame depth
(mm)		 Waterway area
(cm²)		 Options My Wrekin Downloads
DGHT0D6/4242/KHP Highway 425 x 425 450 x 450 615 x 545 150 910
DGHT0D4/4545/KHP Highway 425 x 425 450 x 450 615 x 545 100 910

Kerb hinged gully grates

Stock code Range Clear opening
(mm)		 Base opening
(mm)		 Overall frame
(mm)		 Frame depth
(mm)		 Waterway area
(cm²)		 Options My Wrekin Downloads
DGHT0D4/4242/KHK Highway 430 x 410 450 x 450 625 x 535 100 1,250
DGHT0D6/4544/KHK Highway 430 x 410 450 x 440 625 x 535 150 1,250

Find a product

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  1. DGHT0D4/1045/KH

    Highway D400 3 flange gully grate 980mm x 425mm clear opening with 100mm frame depth

  2. DGHT0D4/4242/KH

    Highway D400 3 flange gully grate 425mm x 425mm clear opening with 100mm frame depth

  3. DGHT0D4/4242/KHK

    Highway D400 3 flange kerb hinged gully grate 430mm x 410mm clear opening with 100mm frame depth (made to order)

  4. DGHT0D4/4337/KH

    Highway D400 3 flange gully grate 370mm x 430mm clear opening with 100mm frame depth

  5. DGHT0D4/4545/KHP

    Highway D400 3 flange pedestrian friendly gully grate 425mm x 425mm clear opening with 100mm frame depth

  6. DGHT0D4/5035/KH

    Highway D400 3 flange gully grate 480mm x 320mm clear opening with 100mm frame depth

  7. DGHT0D4/6045/KH

    Highway D400 3 flange gully grate 425mm x 425mm clear opening with 100mm frame depth

  8. DGHT0D4/6060/KH

    Highway D400 3 flange gully grate 580mm x 580mm clear opening with 100mm frame depth

  9. DGHT0D6/1045/KH

    Highway D400 3 flange gully grate 980mm x 425mm clear opening with 150mm frame depth

  10. DGHT0D6/4242/KH

    Highway D400 3 flange gully grate 425mm x 425mm clear opening with 150mm frame depth

  11. DGHT0D6/4242/KHP

    Highway D400 3 flange pedestrian friendly gully grate 425mm x 425mm clear opening with 150mm frame depth

  12. DGHT0D6/4337/KH

    Highway D400 3 flange gully grate 370mm x 430mm clear opening with 150mm frame depth

  13. DGHT0D6/4544/KHK

    Highway D400 3 flange kerb hinged gully grate 430mm x 410mm clear opening with 150mm frame depth

  14. DGHT0D6/4545/KH

    Highway D400 gully grate 450mm x 450mm clear opening with 150mm frame depth

  15. DGHT0D6/5035/KH

    Highway D400 3 flange gully grate 480mm x 320mm clear opening with 150mm frame depth

  16. DGHT0D6/6045/KH

    Highway D400 3 flange gully grate 425mm x 425mm clear opening with 150mm frame depth

  17. DGHT0D6/6060/KH

    Highway D400 3 flange gully grate 580mmx 580mm clear opening with 150mm frame depth

3 flange gully grates

Stock code Range Clear opening
(mm)		 Base opening
(mm)		 Overall frame
(mm)		 Frame depth
(mm)		 Waterway area
(cm²)		 Options My Wrekin Downloads
DGHT0D4/5035/KH Highway 480 x 320 500 x 350 675 x 445 100 950
DGHT0D6/5035/KH Highway 480 x 320 500 x 350 675 x 445 150 950
DGHT0D4/4337/KH Highway 370 x 430 390 x 450 565 x 545 100 1,000
DGHT0D6/4337/KH Highway 370 x 430 390 x 450 565 x 545 150 1,000
DGHT0D4/4242/KH Highway 425 x 425 450 x 450 615 x 545 100 1,250
DGHT0D6/4242/KH Highway 425 x 425 450 x 450 615 x 545 150 1,250
DGHT0D6/4545/KH Highway 450 x 450 475 x 480 650 x 575 150 1,370
DGHT0D4/6045/KH Highway 425 x 425 600 x 450 775 x 545 100 1,750
DGHT0D6/6045/KH Highway 425 x 425 600 x 450 775 x 545 150 1,750
DGHT0D4/6060/KH Highway 580 x 580 600 x 600 775 x 695 100 2,150
DGHT0D6/6060/KH Highway 580 x 580 600 x 600 775 x 695 150 2,150
DGHT0D4/1045/KH Highway 980 x 425 1,000 x 450 1,175 x 545 100 2,750
DGHT0D6/1045/KH Highway 980 x 425 1,000 x 450 1,175 x 545 150 2,750

Available options and accessories

Options

  • Screw locking
  • Enhanced anti-slip coating

Accessories

View full details for available options and accessories
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Create an installation that lasts

Specification clauses

Download and use our specification clauses in your future projects to ensure third-party installers use high-quality products. These documents provide clear, precise guidance for specifying our Unite and Highway product ranges, ensuring the best materials are always used in projects.

By incorporating these clauses, you can significantly reduce the likelihood of product failure, extend the lifespan of ironwork installations, and minimise costly road closures and disruptions.

Download specification clauses
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The M60 – M62 smart motorway forms an important part of the main east-west transport corridor, linking Merseyside and Greater Manchester with Yorkshire and the Humber. Wrekin Products worked closely with Manchester Smart Motorway JV, offering technical advice and adapting the specification of the product to ensure it would provide the optimum solution. 
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