Size:DN40-DN600 Design Standard: BS EN14525 Material conform to EN-GJS500-7. â?¢Working Pressure: PN10.PN16 â?¢Bolts/Nuts: Galvanized Steel, Dacomet Coating, Hot Dip Galvanizing to ISO898-1, ISO898-2 â?¢Rubber Gasket : EPDM to EN681-1, NBR to EN682 WRAS approved FBE coating and Rubber also available on request. * High Tolerance Mechanical Pipe Fittings. * Angular deflection +/- 3°.