Clark-Drain Square Polypropylene Manhole Cover And Frame - 580mm - CLKS456

Name: Clark-Drain Square Polypropylene Manhole Cover And Frame - 580mm - CLKS456
Brand: Clark-Drain
SKU: b3ogf26yof
Availability: InStock

This solid-top manhole cover is manufactured from AP9 grade polypropylene and offers a 3.5 tonne l...

Best current price£55.27from Professional Building Supplies

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Product Information

Full details

The Clark-Drain CLKS456 is an ideal solution for homeowners and contractors looking to replace heavy metal covers on domestic driveways, pedestrian areas, or landscaped garden spaces. This 3.5-tonne rated, AP9 grade polypropylene cover offers a significant weight advantage over traditional cast iron, making it safer to handle and easier to install, though users must ensure it is used strictly for domestic load-bearing applications to maintain safety standards.

All features

Model Part Number	CLKS456
Brand	Clark-Drain

Extended Product Information

FAQs

Can I use this cover for a public road?

No, this cover is rated for domestic use (3.5 tonnes) and is not suitable for public roads or heavy industrial vehicle traffic.

What is the external size of the frame?

The external frame dimensions are 580mm x 580mm.

Is this compatible with all 450mm chambers?

Yes, the integrated circular connection ring is designed to fit standard 450mm diameter inspection chambers.

Does this cover come with a frame?

Yes, it must be installed as a complete assembly with the provided frame to ensure structural integrity.

What is the weight rating in tonnes?

This product has a load rating of 3.5 tonnes.

Troubleshooting

Cover does not sit flush with the surrounding ground

Utilize the swivel and tilt capabilities of the frame to adjust the angle before the mortar fully cures.

Locking mechanism is stiff or difficult to turn

Clean out any dirt or grit trapped in the locking slots using a brush and apply a light silicone-based lubricant.

Pros and Cons

Pros

Significantly lighter than traditional cast iron, reducing the risk of injury during handling.
Swivel and tilt frame allows for precise alignment during installation.
Corrosion-resistant material is ideal for long-term outdoor exposure.
High-security dual locking system keeps the unit securely in place.

Cons

Not suitable for high-traffic heavy goods vehicles or main roads.
Plastic material may be susceptible to heavy impact damage compared to solid steel alternatives.
Must be installed as a complete assembly, limiting compatibility with older non-standard frames.

Setup, Compatibility & Care

To install, ensure your inspection chamber is a standard 450mm diameter model. The unit should always be installed as a complete assembly, including the provided frame. Use a standard mortar bedding for the frame to ensure a level, stable surface. For care, perform annual inspections to ensure the locking mechanisms are free of debris and functioning correctly. If the surface becomes stained, a simple scrub with water and a mild detergent is sufficient to maintain its appearance. Avoid using heavy machinery or high-impact tools directly on the surface of the cover.