Wrekin Tristar D400 Manhole Covers

Description

Wrekin Tristar D400 Cover and Frame

Wrekin Tristar D400 access covers are designed for trafficked areas where higher wheel loads are expected. The range is specified to BS EN 124-2 load class D400 for Group 4 applications. Each D400 Cover And Frame is manufactured from ductile iron and supplied as a complete assembly for installation into paved and carriageway surfaces. This page covers the Tristar range across the sizes listed, using only features confirmed as standard for the range.

Key design features

The Tristar uses a non-rocking three-point suspension to provide stable seating in service. Enlarged corners are designed to distribute loads across the foundation. Safety keyways are intended to reduce the risk of accidental lifting key disengagement during handling. Indexed corners support correct orientation during installation

Specifications

Benefits

The D400 Cover And Frame format supports chamber access in trafficked areas. Ductile iron provides resistance to impact and wear. Stable seating helps limit movement under repeated wheel loading. The design supports routine lifting and inspection operations. The Tristar provides a consistent specification across multiple clear openings and frame depths

Applications

Suitable for carriageways, industrial access routes, loading areas, and other trafficked surfaces. Appropriate where D400 duty is specified under BS EN 124-2. Used on sites where a Wrekin Tristar assembly is required across standard chamber openings.

Explore More

Browse the wider range of ductile iron covers and gratings across alternative load classes, frame depths, and access configurations.

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