Sewerage manhole PVC-KG 315/160 with cast iron lid A15

The complete PVC-KG sewerage inspection manhole D315/160 with an A15 cast iron lid provides an engineered access and inspection solution for buried gravity sewerage, stormwater, and domestic drainage installations. Manufactured to withstand ground movement, chemical effluent exposure, and continuous hydraulic flow, this complete inspection assembly consists of three integrated elements: a precision-moulded PVC-KG inspection chamber base DN 315 with DN 160 in-line or multi-inlet branch sockets, a 1-metre smooth PVC-KG riser shaft pipe with an outside diameter of 315 mm, and a heavy-duty A15 class cast iron cover capable of supporting test loads up to 1.5 tonnes (15 kN).

Engineered specifically for non-trafficked outdoor areas, pedestrian footpaths, pavements, private courtyards, and green landscaped zones, the A15 cast iron lid seats securely onto the top of the PVC riser shaft, preventing surface debris, rainwater ingress, and unauthorized access while facilitating rapid unhindered access for pipe cleaning, jetting, and CCTV camera inspection. The cast iron construction delivers outstanding resistance to weathering, UV degradation, thermal cycling, and physical impacts, ensuring dependable long-term protection at ground level.

The internal hydraulic profile of the PVC-KG manhole base features smooth, high-capacity flow channels designed to minimize hydraulic resistance, eliminate turbulence, and prevent the accumulation of sediments or suspended solids. The integrated elastomeric rubber ring seals within the DN 160 sockets create watertight push-fit connections with standard smooth PVC-KG sewer pipes, eliminating groundwater infiltration and soil contamination. The modular riser pipe can easily be cut to the exact required installation depth on-site using standard cutting tools, providing maximum installation versatility across varied trench depths.

BigWeld supplies complete thermoplastic sewerage and utility inspection chambers across European projects, delivering high-performance drainage assemblies that streamline external groundworks and ensure enduring structural stability in gravity wastewater networks.