... pipe dimension9, Low head loss and less open pressure (1” W.C.)10, Will not warp or freeze11, Standard supply range is ... for Retaining Ring FlangeC(mm)F/F(mm)W(mm)Weight(kg)OD(mm)C(mm)id(mm)Hole Diam. (mm)Bolt ... for Retaining Ring FlangeC(mm)F/F(mm)W(mm)Weight(kg)OD(mm)C(mm)id(mm)Hole Diam. (mm)Bolt ...