450 x 450mm Stainless Steel 316 Recessed Manhole Cover

This recessed manhole cover is manufactured from grade 316 stainless steel for use in environments where corrosion resistance is required. It is commonly specified for internal wet areas such as commercial kitchens, plant rooms and changing facilities, as well as external locations exposed to regular cleaning or harsh conditions.

The recessed tray allows tiles, stone or resin finishes to be installed within the lid so the cover sits flush with the surrounding surface. The 32mm tray depth is suited to thinner floor build-ups, helping avoid conflicts with finished floor levels.

A double seal arrangement helps restrict odours and minor surface water movement from below, making it suitable for foul water chambers and internal drainage access points. The four point locking system secures the cover to the frame, maintaining seal compression and reducing movement under foot traffic.

This cover is designed for pedestrian use only and should not be used in areas subject to vehicle loading. As shown in the technical data, performance relies on correct infill within the tray using suitable materials to achieve the stated load class.

• Grade 316 stainless steel, resists corrosion in wet and chemically exposed environments
• Double seal system, helps prevent odour and surface water transfer
• Four point locking mechanism, secures the cover and maintains seal contact
• 32mm tray depth, suited to tile and thin floor finishes
• Recessed design, allows a continuous floor finish across the cover
• Screed grip mesh, improves bonding of infill material within the tray
• Shallow overall depth, suitable where floor build-up is limited
• Polished edge detail, provides a clean visible perimeter once installed

Manufactured from grade 316 stainless steel. This provides increased resistance to corrosion compared to standard steels, making it suitable for installations exposed to moisture, cleaning chemicals or chlorinated environments.

Product type: Recessed manhole cover double sealed and locking
Suitable location: Internal and external pedestrian areas
Clear opening: 450mm x 450mm
Overall frame size: 562mm x 562mm
Tray depth (recess depth): 32mm
Frame depth: 50mm
Material: Stainless steel grade 316
Finish: Natural stainless steel with polished edge
Seal type: Double seal
Locking: 4 point locking system
Load rating: FACTA A pedestrian only
Lifting method: Lifting keys (sold separately)
Fixings supplied: No
Weight: 12.04kg
Standards: FACTA A, BS EN1253 Class K3