My Wrekin


Unite D400 manhole cover 1220mm x 675mm clear opening with 150mm frame depth

Manhole covers - Square

Stock code Range Overall frame
(A x B)
Clear opening
(C x D)
Frame depth
Base opening
(F x G)
Datasheet My Wrekin
DMT0D6/1267/KU Unite 1,465 mm x 920 mm 1,220 mm x 675 mm 150 mm 1,250 mm x 710 mm
  • GritBlockerâ„¢ anti-blockage keyway insert comes pre-installed.

    Anti-blockage keyway
  • Anti-flex covers prevent the causes of cover seating wear, eliminating excessive noise and catastrophic failure.

    Anti-flex cover
  • Specially designed cover support geometry reduces movement relative to the frame, minimising seating wear.

    Cover support geometry
  • Enlarged frame corners help to dissipate load, minimising bearing pressure.

    Enlarged frame corners
  • Indexed covers ensure correct fit first time, every time.

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

    Safety keyway
  • Textured mortar engagement flange improves the bedding mortar grip to the frame, reducing lateral shift and mortar breakdown.

    Textured mortar engagement flange surface
  • Mechanical lifting points are provided.

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

    PSRV tested
  • Meets CD 534 v0.1.0 (formerly HA 104/09).

    CD 534 v0.1.0 icon

Product images

Product drawings

General information

Stock code
Primary material
Ductile iron
Manhole cover

Standards, classes and groupings

BS EN 124
CD 534 v0.1.0
BS EN 124 Class
BS EN 124 Group
Third party certified


Frame shape
Manhole shape
Overall frame length (A)
1,465 mm
Overall frame width (B)
920 mm
Clear opening length (C)
1,220 mm
Clear opening width (D)
675 mm
Frame depth (E)
150 mm
Base opening length (F)
1,250 mm
Base opening width (G)
710 mm


All Seal Plate variants (other than high pressure resistant version) can be retro-fitted after cover and frame installation.

All values stated are nominal within 2.5% tolerance.


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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. Installation details are available on request.