Standards: AWWA C219, BS EN 14525 Materials: Ductile ironï¼?castedï¼?, Steel (Fabricated). Nominal sizes: DN502600mm Pressure: 10/16/25/40bar Corrosion protection: Inside and outside FBE 300um. Bolts and nuts: Carbon steel 4.8/8.8 or stainless steel 304/316. Gaskets: EPDM, SBR, NBR Package: Wooden case with plastic film, wooden pallets with plastic film, steel crates.