Design and features Casing manufactured with cold-formed plate. BSP/ GAS connections ( standard) . Open impeller manufactured with stainless steel cold-formed plate or investment casting motor according to model. Inside mechanical seal. Simple parts and easy maintenance. IEC B35 motors ( B34 for EFH-200) , IP55,   F-class insulation. Materials Parts in contact with pumped media  : AISI 316L Lantern      : GG-15 Other parts :   AISI 304 Gaskets ( standard)       : VMQ ( Silicone) Mechanical seal ( standard) : Cer/ C/ NBR Surface finish : Electroplished