Standard :ISO2531,BSEN545,BSEN598 Diameters : 80mm to 1200mm Pressure rating : PN10/PN16/PN25 Wall thickness: K12 or K14 Uses : sewage sludge Coatings for EN545: 1). Inside and outside with FBE ( fusion bonded epoxy) 2). Inside and outside with Blue Epoxy painting; 3). Cement lined internal and Zinc-spray+ bitumen external Coatings for EN598: 1). Inside and outside with FBE ( fusion bonded epoxy) 2).High Alumina Cement lined internal, red epoxy external Other coatings are available on request. Gaskets : SBR,NBR ,EPDM are available. Package: wooden cases and protection layer, wooden pallets with protection layer for Larger Fittings.