Manhole covers

Standard covers

Langmatz manhole covers have been developed for simple and fast operation.

  • Steel covers, concrete-lined/paveable:

sit firmly in the frame, thanks to their weight and dual locking mechanism. They are suitable for roads without heavy traffic, where one-section covers are preferred and bends or intersections are to be avoided. Load-bearing strength up to class D400.

  • Cast-iron covers:

lightweight, easy to lock and can withstand loads up to class D400. However, regular vehicular traffic can cause increased noise and so they are suitable for occasional vehicular traffic.

  • Plastic covers:

corrosion-resistant and especially lightweight (can easily be handled without the need for lifting equipment, available for selected clear dimensions and up to class B125).

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Concrete-lined steel

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Cast iron

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Paveable steel

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Plastic

Special covers

  • Concrete-lined steel covers for increased traffic volumes in inner city areas. They are significantly heavier, always one-section, and additionally screwed down. For use in urban areas where heavy traffic is unavoidable.
  • Concrete-lined steel with cast-iron entrance
  • Triangular cast iron swivel cover
  • Cast iron with integrated pedestal suitable for outdoor cabinets KVz22 etc.

STEEL FRAME

All steel frames are hot-dip galvanised. There is a damping pad between the steel frame and cover, which compensates for any minor unevenness and reduces noise.

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LOCKING MECHANISM

Manhole covers with load class D400 must always be screwed down, locked, or secured by a surface-related mass in accordance with DIN EN 124.

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  • Standard head styles:

hex head, hex socket, LIC-LOCK, COLT / TELENET / OTC