Home
My Wrekin

DGHT0D4/4242/KHK

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

Specification Knowledge base

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

Features

  • Non-rocking three-point suspension provides stable seating for silent, reliable operation.

    3 point suspension

  • Captive hinges deter theft and allow safe, easy lifting during maintenance.

    Captive hinges

  • Enlarged corners spread loads evenly across the foundation, enhancing reliability and lifespan.

    Enlarged frame corners

  • Gussets dissipate loading stresses effectively, providing long-term durability by preventing damage to the frame and bedding material.

    Gussets icon

  • Integrated keyway frame lifting points provide safe and secure handling.

    Keyway lifting point in the frame

  • Frame holes allow mortar to flow through the flange, creating a strong mechanical bond for added stability.

    Mortar Apertures icon

  • Texturing above and below the flange improves mortar grip and reduces lateral movement and cracking.

    Textured mortar engagement flange surface

  • Meets the requirements of CD 534 v0.2.0.

    CD 534 v0.2.0 logo

Images

Specification

General information

Stock code
DGHT0D4/4242/KHK
Primary material
Ductile iron
Range
Highway
Category
Gully grate
Flanges
3

Standards, classes and groupings

Standards
BS EN 124-2
DMRB
MCHW
CD 534 v0.2.0
BS EN 124 Class
D400
BS EN 124 Group
3
4
Third party certified
Kitemark
CD 526 hydraulic capacity
R

Dimensions

Frame shape
Rectangular
Manhole shape
Rectangular
Overall frame (A x B)

625 mm x 535 mm
Clear opening (C x D)

430 mm x 410 mm
Frame depth (E)
100mm
Base opening (F x G)

450 mm x 450 mm
Waterway area
1,250cm²

EPD Data

Total life cycle (cradle to grave)
76.5 kg CO₂ equivalent
Download EPD Data
BRE Greenbook Live
BRE Verified Logo

Available options

Accessories

Stock code Description My Wrekin
PC/UNIFORM/151076 Uniform chamber adjustment unit 760mm x 100mm x 15mm
PC/UNIFORM/251076 Uniform chamber adjustment unit 760mm x 100mm x 25mm
PC/UNIWEDGE/755012 Uniform support wedge 120mm x 50mm x 75mm
YPCR/U12.5 12.5Kg Unipak® rapid curing polyester resin mortar
YPCR/U25 25Kg Unipak® rapid curing polyester resin mortar
SCREWLIFT Simple and rapid manhole frame levelling system. Simply push the bushes into the holes in the flange and adjust the levelling screws to the required height.

Downloads

Kitemark Certificate.pdf
Certificate-pdf
Highway range specification clauses.pdf
Specification clause-Login required
Wrekin BRE Verified EPD Standard Range.pdf
Environmental Product Declaration (EPD)-Login required

Notes

  • Can be manufactured on request, please contact the sales team for more information.
  • Where 3-flange D400 Gully Grate assemblies are employed, we recommend that they are installed against a kerb, not in an open highway location.
  • The D400 load capability of these Group 3 products also offers the benefit of making them suitable for exposure to Group 4 traffic types. Where 3-flange D400 Gully Grate assemblies are employed, we recommend that they are installed against a kerb, not in an open highway location.

Knowledge base

Access cover being installed

Knowledge Base / Frequently Asked Questions

Ductile iron access cover FAQs

Frequently asked question questions about our ductile iron access cover range of products.
Access cover being installed

Knowledge Base / Standards and conformity

CD 526 hydraulic capacity classifications

A guide to the ‘P, Q, R, S & T,’ ratings are classifications listed in Highways England DMRB document CD 526 and how they are calculated to indicate a gully grating’s hydraulic capacity (or effectiveness at evacuating water from a hard standing area. e.g. carriageway).
Access cover installation

Knowledge Base / Standards and conformity

Operation and maintenance of BS EN 124 ironwork

The complete operation and maintenance (O&M) manual for all Wrekin BS EN 124 ironwork.
Access cover being installed

Knowledge Base / Standards and conformity

Sewers for adoption

Sewers for Adoption (7th edition) contains guidance for the design and construction of sewers that will be adopted by Sewerage Undertakers in England and Wales in accordance with Section 104 of the Water Industry Act 1991. This helpful guide will take you through what you need to know.
Access cover being installed

Knowledge Base / Product and specification guidance

Ductile iron product symbols

Guidance on the symbols and iconography displayed on Wrekin ductile ironwork.
Access cover being installed

Knowledge Base / Product and specification guidance

What information is on product labels?

A handy guide showing the information on our product labels. This information will help you identify what products you have when picking, packing or installing on-site.
Road resurfacing

Knowledge Base / Product and specification guidance

On-site coating of ductile cast iron parts

Where the loss of barrier coatings has occurred, usually through trafficking and/or light corrosion, a site-applied paint coating may be successfully brush-applied to refresh the surface finish of ductile iron parts.
Access cover being installed

Knowledge Base / Product and specification guidance

How manhole covers and gully grates are measured

Learn how to accurately measure manhole covers and gully grates with our helpful guide.
Access cover being installed

Knowledge Base / Standards and conformity

A guide to conformity marking and voluntary third-party certification

Helpful information that guides you through applicable conformity marking and voluntary third-party certification requirements in the UK.
Access cover being installed

Knowledge Base / Product and specification guidance

Surface oxidation on ductile iron castings

Guidance on surface oxidation on iron castings, including what our covers are coated with and why we do this.
Access cover hero image

Knowledge Base / Product and specification guidance

Manhole cover range comparison chart

A comprehensive feature comparison of our market leading Tristar, Highway and Unite ranges of access cover.
Access cover being installed

Knowledge Base / Standards and conformity

Understanding BS EN 124 groups and classes

BS EN 124:2015 divides access covers and gully grates into classes by static test load. It also categorises the various places where they may be installed from Group 1 to Group 6. This article will guide you through the groups and classes.

Knowledge Base / Product and specification guidance

Access cover features

All of our products are packed full of features to make them best in class. This knowledge article explains the features and their benefits in detail.
Road resurfacing

Knowledge Base / Product and specification guidance

ID badging and antenna options (RFID, NFC, IoT)

The retrofittable ID badge facility supports a range of ID badging but can also house communications antennas within the cover, avoiding any need to alter the surrounding road surface. This article explores the potential applications of this technology.

Knowledge Base / Product and specification guidance

Understanding clear openings in manhole covers

Clear opening is a critical safety and compliance measure for manhole covers. It is defined in both BS EN 124 and CD 534. 
  1. All information provided is subject to change without notice. While every effort is made to ensure accuracy and relevance, Wrekin Products Ltd. does not warrant the completeness or reliability of the information contained herein. Photographs, illustrations, and other visual materials are provided for illustrative purposes only.
  2. Wrekin Products Ltd. reserves the right to make design amendments or improvements to any product at any time, where such changes enhance performance or durability, without affecting compliance with the stated standards.
  3. Where errors or omissions are identified, amendments will be made as quickly as possible.
  4. It is the responsibility of all users to satisfy themselves the above data is current.
  5. All values stated are nominal within 2.5% tolerance.
  6. Installation details are available in the knowledge base.
  7. All Wrekin products are supplied subject to our terms and conditions of sale.
Share this page