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DMT0D4/4545/KT

Tristar D400 manhole cover 450mm x 450mm clear opening with 100mm frame depth

Specification

Stock code Range Clear opening
(mm)		 Overall frame
(mm)		 Frame depth
(mm)		 Options My Wrekin Downloads
DMT0D4/4545/KT Tristar 450 x 450 610 x 610 100

Features

  • The enlarged frame corners help to dissipate loads onto the foundation, providing a longer service life and increased reliability.

    Enlarged frame corners

  • Safety keyway prevents accidental disengagement of the lifting key during the handling process.

    Safety keyway

  • 70+ PSRV tested at top surface of chequer by UKAS accredited 3rd party.

    PSRV tested

  • Indexed corners ensure correct orientation first time, every time.

    Indexed corners

  • Non rocking 3-point suspension design, for silent operation.

    3 point suspension

Images

Specification

General information

Stock code
DMT0D4/4545/KT
Primary material
Ductile iron
Range
Tristar
Category
Manhole cover
Flanges
4

Standards, classes and groupings

Standards
BS EN 124-2
BS EN 124 Class
D400
BS EN 124 Group
4
Third party certified
Kitemark

Dimensions

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

610 mm x 610 mm
Clear opening (C x D)

450 mm x 450 mm
Frame depth (E)
100mm
Base opening (F x G)

470 mm x 470 mm

EPD Data

Total life cycle (cradle to grave)
86.68 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
GRITBLOCKER Anti-blockage keyway insert
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.
KEY/LONG Large cover lifting keys with a long handle (sold as a pair)
KEYS/L Small cover combined lifting key

Downloads

Wrekin Manhole Cover Installation Guide.pdf
Instruction manual-pdf
PSRV Certificate of Conformance - 2025.pdf
Certificate-pdf
Kitemark Certificate.pdf
Certificate-pdf
Wrekin BRE Verified EPD Standard Range.pdf
Environmental Product Declaration (EPD)-Login required

Notes

The use of Armadillo is recommended where exposure to construction site traffic is likely
  1. Wrekin Products Ltd is continually seeking to improve our products and therefore reserves the right to alter product specifications without prior notice.
  2. It is the responsibility of all users to satisfy themselves the above data is current.
  3. All values stated are nominal within 2.5% tolerance.
  4. Installation details are available in the knowledge base.
  5. All Wrekin products are supplied subject to our Terms and Conditions of Sale.
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