124mm BCD 8 Hole Tapped Weld-in Flange to suit the AMF 80mm Vacuum and/or Pressure Relief Valve, welded directly into the AMF manhole cover
80mm Vacuum and Pressure Relief Valve G316 Stainless Steel Weld-in Flange
124mm BCD 8 Hole Tapped Weld-in Flange to suit the AMF 80mm Vacuum and/or Pressure Relief Valve, welded directly into the AMF manhole cover