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CD 534: Chamber Tops and Gully Tops for Road Drainage and Services, now at version 0.2.0. is here Find out more

Legendary size

Hercules™

Built for strength, designed for reliability, Hercules is the answer to large-scale, heavy-duty access requirements. Engineered from durable ductile iron, Hercules provides dependable performance where resilience matters most. Purpose-built for Group 4 trafficked environments, Hercules delivers long-term strength, stability and performance to BS EN 124 D400 criteria.

When it comes to covering large chambers up to 1.2m x 1.2m, Hercules outperforms fabricated steel alternatives. It’s a cost-effective, low-maintenance solution that combines lasting strength with straightforward installation, ideal for highways, industrial sites and busy urban networks.

Hercules manhole cover

Unmatched benefits for contractors and operators

The Hercules range is engineered with the contractor in mind, offering a host of features that streamline installation and maintenance:

  • Tested to perform at the levels required for BS EN 124, D400, Group 4 applications*
  • Double triangular covers are indexed for correct orientation during fitting
  • Secure inspection window, eliminating the need for cover removal
  • Threaded lifting eye for safe and easy mechanical lifting
  • Anti-flex covers to prevent seating wear and catastrophic failure
  • Enlarged frame corners for optimal load dissipation and reduced bearing pressures
  • Suitable for large chambers with clear openings up to 1.2m

*Although covers above 1,000 mm clear opening are outside the scope of BS EN 124:2015, Hercules has been engineered and tested to the same D400 performance criteria.

 

Hercules large manhole cover
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Whether you are looking for live project support, or are in the initial stages of specification, we are always on hand and happy to help.