DMS1D4/60D/KU

Concealed hinges prevent debris entering the hinge and limiting its movement.

Mechanical lifting points are provided.

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

Safety-stop hinges prevent covers from falling once opened.

Spring bar low security locking feature.

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

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.

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

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

Unlike sharp, square-edged frames, rounded edges reduce stress concentrations and minimise crack formation.

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