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Sick and tired of ?
The obvious solution is: DO NOT USE CAST IRON. In its place Vanstone offers precast concrete covers and frames.
|Precast concrete does not get stolen because it has very little scrap value and is rather heavy to carry away. Besides that it is a lot simpler and less costly to install as the formed concrete surround that usually has to be cast or formed on site, is already part of the frame.
|Vanstone has developed manhole cover and frame sets for the two most common sizes of manholes used in telecoms and on building sites. These are 600 x 600 mm and 600 x 450 mm clear opening sizes. The covers and frames are designed to withstand light vehicle traffic loads typical to those conditions.|
|The lids or covers are equipped with two lifting slots and a galvanized steel rim lining to protect it against wear and tear. The top surface has a pleasing easy-clean non-slip texture. Frames have a smooth concrete finish.||
Vanstone precast concrete manhole covers and frames may be used on top of any type of manhole wall to effect a surface closing hatch. It may be used for either newly built or existing manholes. See Guidelines for Installation.
Kindly contact Vanstone for a quote.