... l/min 3.Power 2 to 2.5 Hp Stainless Steel Pump, centrifugal pumps, water pump, 2WB Operating LimitsLiquid ... phase with thermal protector,Class F or B, Protection IP54,Continuous duty. 2WB (Twin impeller) series stainless steel centrifugal pumps, ... Materials:Pump casing, back-cover, impeller and pump shaft: Stainless Steel SUS304 & SUS316LBracket and Motor casing: Aluminum AlloyStandard mechanical Seal ...