This kind of pump be used to transfer high temperature hot oil, oil highest temperature can reach to 400 degree. RY and AY Hot Oil Pump have two type: air-cooled Hot oil pump and water cooled Centrifugal Pump. air-cooled hot Oil Pump is cooling by flowing air, this kind of pump can bear highest temperature is 300 degree. water cooled hot oil pump is cooling by circulating cool water, this kind of pump can bear 400 degree high temperature. pump have cast steel and stainless steel two kind of material. also can be used to transporting corrosive oil.