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Reducer ring

Aiding compliance with Part H of the Building Regulations, our ductile iron reducer ring reduces the clear opening to a 350mm diameter. This provides a second line of defence against chambers being accessed by unauthorised people or potential falls if accidentally left uncovered.

Reducer ring with Safeseal 450mm dia. access cover

For sites that have neglected to specify a restriction device, it is not too late to rectify. The Wrekin reducer ring can be retrofitted to standard 450mm diameter clear opening Wrekin manhole cover frames, allowing customers to be confident that they can make their scheme compliant in future if they happen to overlook installation of these safety accessories when the cover is first put in place.

Straight forward to install, the reducer ring can be bolted into place for peace of mind. Additionally, we can factory fit this accessory to avoid confusion on site and ensure compliance from the start of your project.

Reducer ring

Stock code Product name Description Datasheet My Wrekin
DREDRING/45/35 Reducer ring Reducer ring with a 350mm inner diameter and 460mm outer diameter

Products compatible with reducer ring

Rectangular

Stock code Range Overall frame
(A)
Clear opening
(C)
Frame depth
(E)
Base opening
(F)
Datasheet My Wrekin
DMS1D4/45D/KT Tristar Ø 620 mm Ø 450 mm 100 mm Ø 500 mm
DMS1A1/45D/K Safeseal Ø 540 mm Ø 450 mm 30 mm Ø 450 mm
DMS1A2/45D/K Safeseal Ø 540 mm Ø 450 mm 30 mm Ø 490 mm
DMS1B2/45D Safeseal Ø 550 mm Ø 450 mm 35 mm Ø 495 mm
DMS1B2/45D/K Safeseal Ø 550 mm Ø 450 mm 30 mm Ø 490 mm

Square to round

Stock code Range Overall frame
(A x B)
Clear opening
(C)
Frame depth
(E)
Base opening
(F x G)
Datasheet My Wrekin
DMT0D4/4545/KHSQR Highway 660 mm x 660 mm Ø 450 mm 100 mm 490 mm x
DMS1B2/45D/KSQR Safeseal 550 mm x 550 mm Ø 450 mm 40 mm 490 mm x 490 mm

More available accessories