PP telescopic pipe dn 425x375mm, with clips, for cast iron manhole 425, black color (Diamir 425NW) 2781631041

Diamir manholes are designed for the construction of gravity sewage networks (sanitary, storm, combined, industrial) and drainage. The product range includes three types of manholes: 1. inspection chambers (without manhole covers)—allowing access to the storm or sanitary sewage system using inspection or cleaning equipment, 2. access inspection manholes—allowing personnel access to the storm or sanitary sewage system, 3. manholes with a silt trap—used in storm sewage (stormwater inlets) and drainage; in the case of using "blind" manholes, manholes are used, for example, as tanks or sewage pumping stations.