Ruskon Betoni Etelä Oy
EK-base rings from the Hollola concrete product plant
The EK-base ring forms the bottom section of the manhole, connecting EK manhole rings into a watertight structure. It is suitable for inspection manholes and silt trap manholes in both wastewater and stormwater systems. Its reinforced construction and Cr strength class make it suitable for traffic-loaded areas.
Ruskon Betoni Etelä Oy
DN600-2000 base rings manufactured at the Kokkola concrete product plant
DN600-2000 manhole base rings can be used to construct manholes suitable for a wide range of applications. High-quality manhole rings have proven their durability in Finland’s demanding and constantly changing weather conditions.
Napapiirin Betoni Oy
Base rings with a grooved joint from Napapiirin Betoni
The manhole base ring forms the bottom section of the manhole. It is suitable for water, wastewater, cable, and drainage manholes. The ring is manufactured with a grooved joint that can be sealed when required.
Napapiirin Betoni’s range of base rings covers diameters from DN600 to DN3000.