280mm BCD 8 Hole Weld-in Flange to suit the AMF 162mm Flash Vacuum Relief Valve, welded directly into th AMF manhole cover
162mm Flash Vacuum Relief Valve G316 Stainless Steel Weld-in Flange
280mm BCD 8 Hole Weld-in Flange to suit the AMF 162mm Flash Vacuum Relief Valve, welded directly into th AMF manhole cover