Our concrete manhole rings, manhole chambers, soakaways and heavy duty concrete cover slabs are manufactured in accordance with BSEN1917, BSEN5911-3 & BSEN5911-4. They are available in a wide range of standard diameters and depths. All units are made in modern factory controlled conditions and carry the British Standard Kitemark logo.
This is the name given to a circular pipe placed in its vertical position and used at access points to drains. Manhole rings and cover slabs are designed to BS5911-3, BS5911-4 to withstand pressures up to motorway standards. They are used as an alternative to insitu concrete or brick manholes and are less expensive because of their fast and easy method of construction.
Manhole rings and cover slabs to suit are manufactured in various depths and diameters to facilitate the range of pipe diameters and actual depth on site from ground level (GL) to invert level (IL).