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DMT0D4/9090/KHME

Highway D400 manhole cover 900mm x 900mm clear opening with 100mm frame depth

Specification

Stock code Range Clear opening
(mm)		 Overall frame
(mm)		 Frame depth
(mm)		 Options My Wrekin Downloads
DMT0D4/9090/KHME Highway 900 x 900 1,130 x 1,130 100

Features

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

    Enlarged frame corners

  • A retrofittable ID badge can be fitted, also compatible with antennas and communication options (RFID, NFC, IoT)

    Retrofittable badge

  • 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

  • Meets the requirements of CD 534 v0.1.0 (formerly HA 104/09).

    CD534 v0.1.0

  • Frame gussets are supports which reinforce the corners where the frame sections meet, distributing stress evenly, preventing damage to the frame or the access cover.

    Gussets icon

  • The high seating position ensures that forces are transmitted more directly downwards, meaning conversion of traffic loads into mortar-compatible compression forces.

    Cover support geometry

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

    Indexed corners

  • Keyway lifting points are provided on the frame for safe handling.

    Keyway lifting point in the frame

  • Holes in the frame flange where mortar can pass between the underside and top side, creating an interlock, providing greater strength.

    Mortar Apertures icon

  • Surface texturing above and below the flange enables better mortar engagement, reducing any lateral movement which could result in cracking.

    Textured mortar engagement flange surface

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

    3 point suspension

Images

Specification

General information

Stock code
DMT0D4/9090/KHME
Primary material
Ductile iron
Range
Highway
Category
Manhole cover
Flanges
4

Standards, classes and groupings

Standards
BS EN 124-2
DMRB
MCHW
CD 534 v0.1.0
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)

1,130 mm x 1,130 mm
Clear opening (C x D)

900 mm x 900 mm
Frame depth (E)
100mm
Base opening (F x G)

925 mm x 925 mm

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
Highway range specification clauses.pdf
Specification clause-Login required
  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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